How is Molybdenum produced
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- Category: Molybdenum knowledge
- Published on 28 August 2013
- Written by 陈桂兰
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Many copper mines contain molybdenum,and the Kennecott Bingham and crushing,the ore from Bingham Canyon is sent to the concentrator where it is mixed with an aqueous solution and ground to a face powder consistency.Minerals containing molybdenum,copper,gold and silver are separated using a process known as front flotation.
In froth flotation,the ore is mixed with water and chemicals that cause a change to the minerals surface.Those minerals containing sulfur float to the surface of the floation cells when nitrogen is injected allowing separation of the valuable minerals from the tailings minerals.This first step is known sa bulk flotation.
During the second step,molybdenum is separated from copper by adding chemicals that further alter the copper-bearing mineral surface.Molybdenum disulfide attaches to bubbles and floats to the surface of the flotation cell,separating itself from the copper.The molybdenum sulfide is then filtered,dired,and packaged in large"super sacks"for shipment.
The concentrate is shipped off-site to toll roasting facilities that further process the concerntrate into the base finished product-molybdenum oxide.Molybdenum oxide can also be converted into ferromolybdenum using a silicothermal pricess.
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