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2025-02-28
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OPPORTUNITIES FOR BY-PROCESS EXTRACTION OF MOLYBDENUM FROM BLACK SHALE ORES
Kurbanov Mashhur Amonovich
Doctor of Philosophy, Deputy Head of the Mining Laboratory NMMC JSC
Keywords: Black shales, molybdenum, ammonia-carbonate solution, organic phase, extract, strip, trioxide, precipitation, ammonium paramolybdate.
Abstract
The article presents the results of a study of the possibility of extracting molybdenum from the products of processing refractory black shale ores. The analysis showed high molybdenum concentrations in the recycled ammonia-carbonate solutions at the stripping stage. A liquid extraction method was studied to extract molybdenum from these solutions. A process flow chart for molybdenum extraction is described, including the following main stages: deoxidation of carbonate solutions with sulfuric acid to pH = 1, joint extraction of uranium and molybdenum, selective stripping of molybdenum, neutralization of strips and production of ammonium paramolybdate.
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