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METHOD FOR RECOVERING VALUABLE ELEMENTS FROM PRECOMBUSTION COAL-BASED MATERIALS
METHOD FOR RECOVERING VALUABLE ELEMENTS FROM PRECOMBUSTION COAL-BASED MATERIALS
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机译:从预燃煤基材料中回收有价值元素的方法
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摘要
A method for recovering valuable elements from pre-combustion coal-based materials includes the steps of grinding the materials to a predetermined size, roasting the ground materials at a temperature of 600° C.-700° C. for a predetermined residence time needed for mineral decomposition, submerging the roasted, ground materials in a solution of lixiviant, filtering the lixiviant solution to separate residual solids from a pregnant leach solution including the valuable elements and recovering and concentrating the valuable elements from the pregnant leach solution.
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