Search results “Bioleaching copper mining jobs”
Future Extraction Methods - Bioleaching and Phytomining | Chemistry for All | The Fuse School
Learn the basics about future extraction methods including bioleaching and phytomining. This is a part of the overall environmental chemistry topic. SUBSCRIBE to the Fuse School YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. JOIN our platform at www.fuseschool.org This video is part of 'Chemistry for All' - a Chemistry Education project by our Charity Fuse Foundation - the organisation behind The Fuse School. These videos can be used in a flipped classroom model or as a revision aid. Find our other Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV Twitter: https://twitter.com/fuseSchool Access a deeper Learning Experience in the Fuse School platform and app: www.fuseschool.org Follow us: http://www.youtube.com/fuseschool Friend us: http://www.facebook.com/fuseschool This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: [email protected]
GCSE Science Chemistry (9-1) Alternative Methods of Extracting Metals
Find my revision workbooks here: https://www.freesciencelessons.co.uk/workbooks/shop/ In this video, we look at how to extract metals such as copper from low-grade ores using phytomining and bioleaching. Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/?keywords=deliberate+thought Artist: http://incompetech.com/ Image credits: Pyrolusite By Unknown - http://libraryphoto.cr.usgs.gov/cgi-bin/show_picture.cgi?ID=ID.%20Stose,%20G.W.%201425, Public Domain, https://commons.wikimedia.org/w/index.php?curid=8632822 Copper mine "https://commons.wikimedia.org/wiki/File%3AFalu_gruva_(by_Pudelek).JPG By Pudelek (Own work) [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons" Mining vehicles "https://commons.wikimedia.org/wiki/File%3ABlaxtair_loader_mr90_950H.jpg By Vianneyjeans (Own work) [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons" Copper wire https://commons.wikimedia.org/wiki/File:Treccia_di_rame_-_Foto_di_Giovanni_Dall%27Orto.jpg Brassica rapa By I, KENPEI, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=3715795 E. coli By NIAID - E. coli Bacteria, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=39933073
Views: 49370 Freesciencelessons
A level. S.1  Intro to Biotech and Bioleaching (Ms Cooper)
What is biotechnology? What do biochemical reactions use? What are examples of using microbes in the food industry? What are examples of biochemical industrial products? What is bioleaching? What microorganisms are used in bioleaching? How is bioleaching carried out? How is copper extracted using microorganisms? What are the advantages of bioleaching? What are the disadvantages of bioleaching? What are the different bioleaching techniques?
Extraction of Copper
Views: 384515 Nithya Neela
Copper. One more ore processing
KAZ Minerals presents Copper is one of the top seven metals known since the ancient time. Actually, humankind knows over 170 copper-containing minerals. Copper melts at 1,0830C. Copper and zinc alloy is known as brass. Copper and tin give us bronze, and alliance with nickel turns copper into melchior. Copper presents in Olympic medals of two values. Bronze medal contains about 97% of copper, and silver medal – about 7.5%. However, we need our copper mined and processed first.
Views: 12303 KAZ Minerals
What is TANK LEACHING? What does TANK LEACHING mean? TANK LEACHING meaning & explanation
What is TANK LEACHING? What does TANK LEACHING mean? TANK LEACHING meaning - TANK LEACHING definition - TANK LEACHING explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ In metallurgical processes tank leaching is a hydrometallurgical method of extracting valuable material (usually metals) from ore. Tank leaching is usually differentiated from vat leaching on the following factors: 1. In tank leaching the material is ground sufficiently fine to form a slurry or pulp, which can flow under gravity or when pumped. In vat leaching typically a coarser material is placed in the vat for leaching, this reduces the cost of size reduction; 2. Tanks are typically equipped with agitators, baffles, gas introduction equipment designed to maintain the solids in suspension in the slurry, and achieve leaching. Vats usually do not contain much internal equipment, except for agitators. 3. Tank leaching is typically continuous, while vat leaching is operated in a batch fashion, this is not always the case, and commercial processes using continuous vat leaching have been tested; 4. Typically the retention time required for vat leaching is more than that for tank leaching to achieve the same percentage of recovery of the valuable material being leached; In a tank leach the slurry is moved, while in a vat leach the solids remain in the vat, and solution is moved. Tank and vat leaching involves placing ore, usually after size reduction and classification, into large tanks or vats at ambient operating conditions containing a leaching solution and allowing the valuable material to leach from the ore into solution. In tank leaching the ground, classified solids are already mixed with water to form a slurry or pulp, and this is pumped into the tanks. Leaching reagents are added to the tanks to achieve the leaching reaction. In a continuous system the slurry will then either overflow from one tank to the next, or be pumped to the next tank. Ultimately the “pregnant” solution is separated from the slurry using some form of liquid/solid separation process, and the solution passes on to the next phase of recovery. In vat leaching the solids are loaded into the vat, once full the vat is flooded with a leaching solution. The solution drains from the tank, and is either recycled back into the vat or is pumped to the next step of the recovery process. . Vat leach units are rectangular containers (drums, barrels, tanks or vats), usually very big and made of wood or concrete, lined with material resistant to the leaching media. The treated ore is usually coarse. The vats are usually run sequentially to maximize the contact time between the ore and the reagent. In such a series the leachate collected from one container is added to another vat with fresher ore As mentioned previously tanks are equipped with agitators to keep the solids in suspension in the vats and improve the solid to liquid to gas contact. Agitation is further assisted by the use of tank baffles to increase the efficiency of agitation and prevent centrifuging of slurries in circular tanks...
Views: 1242 The Audiopedia
Biology in mining
Created with Stop Motion Studio. Available for iPhone, iPod and iPad on the AppStore. http://itunes.apple.com/us/app/id640564761?mt=8&at=10lGyj&ct=yt
Views: 10 Kaia Roufs
Dr. Horst Hejny - Bioleaching Process
Dr. Horst Hejny talks about bioleaching. Dr. Horst Hejny: (BIOMOre Project Manager) © DMT GmbH & Co. KG/Germany
Views: 426 BIOMOre
Researchers could use microbes to clean mine sites
Dr. Nadia Mykytczuk, the NOHFC research chair in Biomining, Bioremediation and Science Communication and her team are researching ways to use microbes to clean old mine sites and extract metals from those sites.
Leaching Gold From Concentrates and Black Sands
TCB International LLC is a Phoenix, Arizona based company specializing in the processing of precious metal ores. Our state of the art plant contains an in house laboratory and leaching facility. As each ore has its own unique properties, our laboratory and experienced team allows us to work with your ore from start to finish to maximize your ores' precious metal recovery. Our closed loop circuit system allows us to use an environmentally friendly leach to recover your precious metals from high grade ores or ore concentrates. Our location in the heart of the industrial district of Phoenix allows for easy transportation and delivery of your ore from across the southwest and abroad. For more information visit www.tcbinter.com
Views: 8388 TCB International
GCSE Science Chemistry (9-1) Extraction of Metals.
Find my revision workbooks here: https://www.freesciencelessons.co.uk/workbooks/shop/ In this video, we look at how displacement reactions can be used to extract metals from their compounds looking specifically at the extraction of iron. We then look at these reactions in terms of oxidation and reduction. Gold nugget (image from wikimedia images Aram Dulyan) Iron oxide (By Dave Dyet http://www.shutterstone.com http://www.dyet.com (Own work) [Public domain], via Wikimedia Commons) Copper oxide (By Didier Descouens (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons)
Views: 97934 Freesciencelessons
In Situ Mining Process
A brief overview of the In Situ mining process at our Cameco Resources locations.
Views: 7405 CamecoCorporation
URBAN MINING! Recovering gold, copper, precious metals from PCB's without chemicals
We are excited to post this video and show you all our progress on processing printed circuit boards (PCB's) for gold, copper and other metals with our hammer mill and shaker table. We have the ability to take whole boards, crush them, and run them on our shaker table. We are still in the experimental stage but we have high hopes to have a complete system ready to sell soon. I should clarify that we can't recover all the gold from the boards, but at the end of the video we do have free metallic gold in the gold pan. Our goal is to take whole boards and concentrate out the valuables (metals) from the non-values (fiberglass, plastic, etc). The free gold can easily be removed, melted, and sold directly to a gold buyer, leaving the concentrates, which are much more valuable that the boards themselves. The remaining gold is plated onto other metals. This cannot be mechanically separated, but using the hammer mill and shaker table it can be concentrated into a salable product. The #2 and #3 hole outputs can be sold to a refiner and let them deal with all the chemicals and refining process. For most people its too complicated, dangerous, expensive, etc. to separate out the different metals in the concentrates. As a side note the free gold per pound recovered from the ~20 pounds of boards equates to 1 troy ounce per ton of boards. This would be considered very high grade gold ore for any miner. The PCB's also have loads of copper, tin, lead, plated gold, etc that is added value on top of that 1 oz/ton free gold recovered. Stay tuned and please email or call if you are interested in any of our equipment. For more info call or email: Phone: 360-595-4445 Email: [email protected] Website: http://www.MBMMLLC.com Facebook: https://www.facebook.com/MBMMLLC
Views: 189184 mbmmllc
What is HEAP LEACHING? What does HEAP LEACHING mean? HEAP LEACHING meaning & explanation
What is HEAP LEACHING? What does HEAP LEACHING mean? HEAP LEACHING meaning - HEAP LEACHING definition - HEAP LEACHING explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ Heap leaching is an industrial mining process to extract precious metals, copper, uranium, and other compounds from ore via a series of chemical reactions that absorb specific minerals and then re-separates them after their division from other earth materials. Similar to in situ mining, heap leach mining differs in that it places ore on a liner, then adds the chemicals via drip systems to the ore, whereas in situ mining lacks these liners and pulls pregnant solution up to obtain the minerals. Most mining companies, favor the economic feasibility of the heap leaching, considering that heap leaching is a better alternative to conventional processing (such as flotation, agitation, and vat leaching). Additionally, dump leaching is an essential part of most copper mining operations and along with other deterministic factors, determines the quality grade of the produced material. Due to the effect that the dump leaching has, i.e. it can contribute substantially to the economic viability of the mining process it is advantageous to include the results of the leaching operation in the economic overall project evaluation. This, in effect, requires that the key controllable variables, which have an effect on the recovery of the metal and the quality of solution coming from a dump leaching process. The process has ancient origins; one of the classical methods for the manufacture of copperas (iron sulfate) was to heap up iron pyrite and collect the leachate from the heap, which was then boiled with iron to produce iron(II) sulfate
Views: 3749 The Audiopedia
Our Bugs Eat Rocks
A natural way to clean up mine waste using bacteria! BacTech proposes to remediate mine pollution in Bolivia at NO COST to the community or government. To do so, BacTech wishes to use crowdfunding to raise $30,000 to conduct all the necessary assaying, flotation and bioleach testwork to determine if the project is viable. Once this is determined, BacTech will reach out to ethical, socially responsible, cleantech and impact investment sources to finance a full-scale remediation project. Please visit our campaign page for more information: http://bit.ly/BugsEatRocks
Views: 591 BacTech Green
What is DUMP LEACHING? What does DUMP LEACHING mean? DUMP LEACHING meaning & explanation
What is DUMP LEACHING? What does DUMP LEACHING mean? DUMP LEACHING meaning - DUMP LEACHING definition - DUMP LEACHING explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ Dump leaching is an industrial process to extract precious metals and copper from ores. Dump leaching is similar to heap leaching, however in the case of dump leaching ore is taken directly from the mine and stacked on the leach pad without crushing where, in the case of gold and silver, the dump is irrigated with a dilute cyanide solution that percolates through the ore to dissolve gold and silver. The solution containing gold and silver exits the base of the dump, is collected and precious metals extracted. The resultant barren solution is recharged with additional cyanide and returned to the dump. This method of leaching is usually suitable for low grade ores because it is very low cost. However, it operates with slow kinetics and may take up about 1 to 2 years to extract 50% of the desired mineral.
Views: 934 The Audiopedia
The Uranium Extraction Process - Educational 3D Animated Video
The Uranium Extraction Process - Educational 3D Animated Video For more information and to request a FREE estimate, contact us today: Website: http://www.imaker.ca Email: [email protected] United States Call: +1-800-212-8840 International Clients: +1-604-675-6999
Heap Leaching
Heap leaching explained https://www.911metallurgist.com/blog/heap-leaching
Views: 8696 911 Metallurgy Corp.
Electro Refining and Extraction of Metals
Two simple example of electroplating namely the refining of copper and silver plating is shown and discussed and then the recovery of aluminium metal from bauxite is explained
Views: 1679 Mindset Learn
Universal Bio Mining Introduction
UBM develops novel biological processes to enable the extraction of gold and copper from low-grade ore that is generally treated as waste in the mining industry.
Views: 3675 UniversalBioMining
Gold Mining from Open Pit Extraction to Heap Leaching - Educational 3D Animated Video
Gold Mining from Open Pit Extraction to Heap Leaching - Educational 3D Animated Video For more information and to request a FREE estimate, contact us today: Website: http://www.imaker.ca Email: [email protected] United States Call: +1-800-212-8840 International Clients: +1-604-675-6999
Bioheap Leaching Process
Bioheap leaching is used commercially and is based on natural bacteria's ability to leach metals from sulphide minerals. The process has been performed successfully to obtain gold, copper and uranium. Bioleaching may provide a potential low capital and operating cost treatment route for Aura Energy and is currently being investigated. Animation produced by Pesel & Carr and Friday Media.
Views: 26477 AuraEnergyAEE
A Bacteria That Turns Toxic Metals Into Gold
Cupriavidus metallidurans A Bacteria That Turns Toxic Metals Into Gold
Views: 313 0mni presence
GCSE Science Chemistry Unit 1. Lesson 22. Extraction of copper.
In this video, we take a look at how we extract copper firstly from its ore. Then we explore new techniques, which allow us to extract copper from low-grade sources such as soil (a topic which the examiners love).
Views: 63744 Freesciencelessons
Increasing Tailings Storage Facility through Integrated Solutions
When Yara Siilinjärvi, a phosphate mine in Finland, was running out of space for their tailings storage facility (TSF), they enlisted the help of Weir Minerals. Our Integrated Solutions team worked with Yara to find a way to thicken the tailings to approximately 70% solids concentration to create a +2° slope, and ultimately increase the storage capacity. The results exceeded the customers expectations. visit www.problemsolved.weir to find out more.
Millennium Technology Prize partners use awarded innovations in their business
Partners of the Millennium Technology Prize do a lot of interesting work related to previous awarded innovations. Whether it's using enzymes for bioleaching of gold or to produce renewable fuels, doing research with led light or using Big Data in customer applications, our partners' work takes these innovations to the next level!
Views: 72 millenniumprize
UR Energy ISR mining video
ISR mining
Views: 622 HecubaElectra
Underground In the Congress Mine
The Congress mine is centred near the north shore of Carpenter Lake, latitude 50° 52' 00", longitude 122° 43' 35", west of the mouth of Gun Creek, six kilometres northeast of Gold Bridge on Highway 40 (Figure 10a). The property was first visited in 1985. Geological mapping was completed by the writer during several visits to the property in 1986 and Ace adit was examined and sampled. The Howard adits and Lou decline surveyed in July 1988. History The property, consisting of the Congress mine and several nearby mineral prospects, is owned jointly by Levon Resources Limited and Veronex Resources Limited. The claim block includes a number of reverted Crown-granted claims including Stibnite 1-4, Snowflake fraction, Turner 1, Turner 2, Robert fraction, David fraction, Nap 1, 3 to 9 and Ace 17, 18, 20, 22, 23, 28. The history of the Congress property began about 1910 when the 'Northstar-University' vein was found, following the earlier discovery of placer gold on Gun Creek. The Congress vein was staked by E.J. Taylor and J. Shuster in 1913 and, according to Cooke et al.(1986), C.H. Allan and Associates produced a small amount of gold-antimony ore from a short adit. Congress Gold Mines Limited acquired the property from T. Turner in 1933 and developed three adit levels on the Congress zone between 1934 and 1937. During this period 940 tonnes of ore was tested at the Wayside mill; this yielded 2.58 kilograms of gold, 1.31 kilograms of silver and 38 kilograms of copper. From 1946 to 1950 Sheep Creek Gold Mines Limited managed the property and developed two additional underground levels at the Congress mine and connected the workings with an inclined shaft. In 1959 the Howard vein was discovered 900 metres west of the Congress mine. Ownership of the property passed to the Ace Mining Company Limited then, under option agreement, to Bralorne Pioneer Mines Limited from 1960 to 1964. In this period Bralorne Pioneer Mines Limited did underground work on the Howard vein and continued drifting at the Congress mine while also carrying out programs of surface and underground drilling. The Howard vein was drifted on for about 160 metres at this time, also several new mineralized zones were discovered, including the Bluff zone northeast of the Congress mine and the Paul zone on the north side of Gun Creek, 1.5 kilometres north of the previous discoveries. In 1965 the Ace Mining Company drilled the Paul zone and did other prospecting on the property. Additional exploration was undertaken by Rayrock Exploration Limited. in 1964 and Alice Arm Mining Limited in 1972. In 1975 Alice Arm was reorganized as New Congress Resources, Limited and, over the next five years completed much drilling and drifting on the Howard zone. The property was acquired by Levon Resources Limited in 1982 and under option agreement Veronex Resources Limited funded continuation of the exploration program. The principal exploration has been diamond drilling and underground development of the Howard and Lou zones in 1984 to 88, and a bioleaching pilot project in 1988 and 1989. (Due to the overall fine-grained nature of the ore and the association of gold and silver with arsenopyrite and stibnite, a 250,000-litre capacity biological leaching pilot plant was installed in the Plateau Pond area near the west boundary of the property with the collaboration of Giant Bay Resources Limited. A 600-tonne test sample for this plant was mined from the Howard and Ace workings of the mine). No further work has been done on the property because of disappointing results at a time of low metal prices. Back to top Top Description The Congress property is underlain by a panel of Pioneer pillow lavas and associated basalt feeder dikes and small cogenetic gabbro bodies (Church, 1986a; Cooke, 1986c). These rocks are bounded on the east and west by cataclastic facies of the Fergusson assemblage, including milled ribbon chert, phyllite, graphitic schist, and some marble lenses (Figure 11a). Feldspar porphyry dikes of Tertiary age are conspicuous in the mine workings as well as areas of fracturing and faulting. The ore is relatively simple consisting mainly of pyrite, arsenopyrite and stibnite in discontinuous northerly trending quartz veins accompanied by carbonate alteration.
Munching on metal - Microbes dirty secrets, an indepth explanation of biomining
What is biomining and how does it work? An indepth explanation of biomining using biocatalysis Created by Kilian Tubbs, Rebecca McLay, Benjamin Hart and Helaina Dorreen
Views: 20 Rebecca McLay
RR0236/C  Chile: Copper
SHOTLIST various soldiers marching; army training; military plane; soldiers preparing for combat; soldiers walking; various soldiers getting on plane; military plane flying; soldiers parachuting out of plane; parachutes and plane; FILE: General Pinochet saluting; army saluting Pinochet; army band playing; Pinochet watching (APTN FILE); various Chilean desert; mining terraces; mining vehicle; exterior copper mine; various interior copper mine; molten copper; various workers in copper mine; exterior Codelco Chile; Ivan Badilla, Codelco Executive; various streets of Santiago; mechanic's house; various mechanic working outside; various people around mechanic; mechanic cleaning up; SOT, mechanic Manuel Quintero; government palace La Moneda; politician; SOT Jaime Gazmuri; propeller military plane; plane on ground; planes flying; plane about to take off; two planes colliding in sky; plane with soldiers parachuting; soldiers in plane parachuting out; two soldiers parachuting from back of plane and door closing (APTN) STORYLINE One of the legacies of General Pinochet's military dictatorship of Chile is that the armed forces receive funds from the copper industry. But the market price of copper has recently fallen to its lowest level in 15 years. That's bad news for Chile as the world's largest producer and Latin America's star economy, but especially for the military. Yet Chile's socialist government knows it won't be easy to persuade the armed forces to accept a change in policy. You can license this story through AP Archive: http://www.aparchive.com/metadata/youtube/d651a7b8486dc117637e969ade57c0f2 Find out more about AP Archive: http://www.aparchive.com/HowWeWork
Views: 45 AP Archive
Copper Flotation Machines
These are super simple Copper Flotation Machines.
Views: 225 David Michaud
Microbial mining biotech Bangalore organic products
Rich yield plant growth and yield for more information cantact Nikel 8073701315
Views: 157 nagesh reddy
Extracting zinc using Electrolysis
Today, I test to see if I can extract zinc using aluminium as the anode!! Find me on facebook: https://www.facebook.com/sccopscience Don't forget to subscribe to see future videos like this!! Song used: JJD – Halcyon • Support JJD: https://soundcloud.com/jjdofficial https://dj.beatport.com/jjdofficial https://www.facebook.com/jjdofficial/ https://jjdmusic.bandcamp.com/ https://www.youtube.com/user/JJDofficial https://www.facebook.com/jjdofficial • Support ZeroCopyrightMusic: https://soundcloud.com/edmstation https://plus.google.com/+MrEdmStation https://www.facebook.com/ZeroCopyrightMusic https://www.youtube.com/user/MrEdmStation
Views: 1089 Scoop Science
From electrorefining to cathode copper
Views: 1020 Atlantic Copper
fitting in heap leaching
Asoe Hose Manufactring Inc.
Views: 93 claudia yang
How to produce Cathode Copper_Copper Electrolysis Plant
Indian Client visited our factory for copper electrolysis plant to make cathode copper. With this electrolysis plant, you can produce cathode copper with a purity of 99.99%. For details, please contact us at Email: [email protected] Skype: harbin0229, Whatsapp+Phone: +86-13283840926
'Urban mining' in South Korea makes money from waste
As China�s aggressive hunt for overseas cobalt and lithium for electric vehicles pushes up prices and causes a global shortage of the key metals, South Korea is increasingly turning to such �urban mining� to recover cobalt, lithium and other scarce metals from electronic waste.
Views: 392 News Daily
Mineral-munching microbes
A visit to the bare white hills of tailings from a mine site inspired Dr Miao Chen to think about environmentally friendly ways of extracting metals from ores. She works with naturally occurring micro-organisms which digest mineral ores, leaching metals in a process which saves water and energy. She and her team have also developed solid-state sensors for use in streamlining mining processes, and also for environmental monitoring. This research was carried out as part of the Office of the Chief Executive (OCE) Science Leader program. Video transcript available here: http://www.csiro.au/news/transcripts/YouTubeTranscripts/2014/Nov/MineralMunchingMicrobes.htm
Views: 558 CSIRO
Dimitrios Biliouris (EU): What is BIOMOre? A brief explanation.
Dimitrios Biliouris (BIOMOre Project Advisor / European Commission, Executive Agency for Small and Medium-sized Enterprises (EASME), Brussels, Belgium)
Views: 195 BIOMOre
Copper tailings project excites on a number of fronts, says Jubilee Platinum boss
Chief executive of Jubilee Platinum (LON:JLP) Leon Coetzer walks us through the rationale behind securing a surface copper tailings project in Australia. He said it met a number of the firm's criteria. Fiirstly, that it was a surface project, secondly that it required metallurgical expertise to unlock the copper, that the capital entry level was quite low and that the the timeline between starting investing and earning from the property was quite short. "We found this project, which excited us on a number of fronts," he said.
Mintek reveals new tailings retreatment process
JOHANNESBURG (miningweekly.com) – State-owned research organisation Mintek on Wednesday demonstrated its Reflaut tailings treatment process at gold miner Gold Fields’ South Deep mine, in Johannesburg.
Views: 180 MiningWeekly
Copper Mining
Mining is a very serious environmental issue. First of all, when a mine is dug, the workers have to destroy the land that is there to make a hole. Also, when the mine is dug, the minerals that are found there release gasses that pollute the air. Water is polluted by: chemicals that the mine releases, by the waste and by the soil runoffs. Soil is polluted by the same chemicals, and by the polluted water that gets into it. Mining is an issue because we can't stop using copper; because we need copper for every single electrical device. People can help solve this issue by recycling copper; so instead of dumping your old T.V. in the trash, recycle it, take out the copper wires and other parts that still work, and use them to make a new television. The only problem with that is that copper wire recycling machines can cost up to a million dollars. If we want a recycling center, or a place where people can recycle their electrical devices, a lot of machines would be needed for that, which means that a lot of money would be needed.
Views: 111 Nikki Ellwood
What is CARBON IN PULP? What does CARBON IN PULP mean? CARBON IN PULP meaning & explanation
What is CARBON IN PULP? What does CARBON IN PULP mean? CARBON IN PULP meaning - CARBON IN PULP definition - CARBON IN PULP explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. Carbon in Pulp (CIP) is an extraction technique for recovery of gold which has been liberated into a cyanide solution as part of the gold cyanidation process. Introduced in the early 1980s, Carbon in Pulp is regarded as a simple and cheap process. As such it is used in most industrial applications where the presence of competing silver or copper does not prohibit its use. Activated carbon acts like a sponge to aurocyanide and other complex ions in solution. Hard carbon particles (much larger than the ore particle sizes) can be mixed with the ore and cyanide solution mixture. The gold cyanide complex is adsorbed onto the carbon until it comes to an equilibrium with the gold in solution. Because the carbon particles are much larger than the ore particles, the coarse carbon can then be separated from the slurry by screening using a wire mesh. Leached pulp and carbon are transferred in a counter current flow arrangement between a series of tanks, usually numbering 4 to 6. In the final tank, fresh or barren carbon is put in contact with low grade or tailings solution. At this tank the fresh carbon has a high activity and can remove trace amounts of gold (to levels below 0.01 mg/L Au in solution). As it moves up the train, the carbon loads to higher and higher concentrations of gold, as it comes in contact with higher grade solutions. Typically concentrations as high as 4000 to 8000 grams of gold per tonne of carbon (g/t Au) can be achieved on the final loaded carbon, as it comes in contact with freshly leached ore and pregnant leach solution (PLS). This can be measured by comparing the amount of gold extracted from the carbon to the amount of carbon used. The final loaded carbon then is removed and washed before undergoing "elution" or desorption of gold cyanide at high temperature and pH. Ethanol can also be used to desorb gold from activated carbon, but safety concerns have slowed its acceptance in the gold extraction industry. The elute solution, normally consisting of caustic soda (the electrolyte), cyanide and water circulates through the loaded carbon extracting gold and other metals. The loaded solution passes through an electro winning cell where the gold and other metals are attached to cathodes, made up of wire wool, by electrolysis. The solution then passes back through the loaded carbon extracting more gold and other metals. This process continues until the carbon has been stripped. The cathodes (wire wool now plated with gold and other metals) are removed and placed in acid. The acid burns off the wire wool and other metals such as copper and leaves a sediment of gold and solution of acid and dissolved silver. The acid and silver are drained off after which the gold sediment is numerously washed with water. After the water washes are complete the gold is dried mixed with borax and smelted.
Views: 3265 The Audiopedia
Biomineralization, biominining and Manganese bioleaching
Dr. Alok Prasad Das, yOung sCientist Winner oDisha-2013 shares his experiance sOA-90.4fm- tHe vOice of sOA
Views: 124 prasandeep88
Chemistry of Mining
In this live Gr 11 Physical Sciences show we take a close look at the Chemistry of Mining. Int his lesson we discuss the process of mining as well as examine the chemical process in the recovery and purification of different metals.
Views: 1417 Mindset Learn
How Leaching Agitation Tank to Help Customers Extract Gold, Xinhai
Xinhai Double-impeller Leaching Agitation Tank (http://www.xinhaimining.com/en/product_11_41.html?youtube-visits ) is a kind of agitation machine applied to process gold ore. Applications of this series agitation tank are different from the conventional agitation equipment, which are used for agitating, leaching and carbon absorption in the gold cyanidation plant with more than 90% of slurry with the particle size of -200 meshes and the concentration of less than 45%. This kind of Xinhai Leaching Agitation product (http://www.xinhaimining.com/en/product_11_41.html?youtube-visits ) can also be applied in mixing, agitating and leaching operations in such industries as metallurgy, chemical industry, and light industry under corresponding conditions. Here is the way how Xinhai Double-impeller Leaching Agitation Tank (http://www.xinhaimining.com/en/product_11_41.html?youtube-visits ) works. Dragged and agitated by the double impellers, the slurry in the Leaching Agitation Equipment flows from the top to the bottom, spreads through the damping plate, blends with air at the bottom of the shaft with upward circulation, and finally turns to be suspension mixture. Next are several benefits of Xinhai Leaching Agitation Tank, (http://www.xinhaimining.com/en/product_11_41.html?youtube-visits ) which includes: Smooth ore current movement & even slurry mixture Low dynamic consumption Compact structure and easy maintenance Low circle speed and long service life because of using Xinhai self-developed rubber Large effective volume reaching up to 395m3 More details: http://www.xinhaimining.com/en/product_11_41.html?youtube-visits WhatsApp: 0086-15373366101 Email: [email protected] Website: https://www.facebook.com/xinhaimineral/?fb-mainpage-visits
Views: 4525 Xinhai Mining
Green Leeching Process
It is our demo of animation 3D for our client company that work in gold leeching
Copper Electrolysis System_How to get cathode copper?
From our Copper Electrolysis System, you can see how to get pure cathode copper. If you are in e-waste recycling and copper recycling industry, welcome to contact us for inquiries about this system (www.pcbrecyclingmachine.com) Email: [email protected], Skype: harbin0229, Tel: +86 13283840926

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