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Publication of GEU20071322YpublicationCriticalpatent/GEU20071322Y/en
239000003795chemical substances by applicationSubstances0.000abstract1
239000000725suspensionSubstances0.000abstract1
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Manufacture And Refinement Of Metals
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Abstract
Processing is carried out by leaching the specified work material in sulfuric medium in the presence of pig-iron as deoxidizing agent, which is calculated in superfluous amount in respect to manganese (IV), thus, leaching is carried out in two stages, where at the first stage the leaching of the part of the work material is effected on the appropriate steriometric amount of pig-iron, and at the second stage the remained amount of work material is added to the received suspension, then leaching is continued at temperature of 160-1700ะก during 90-120min.
GEAU20050091372005-12-262005-12-26Method for processing of low-grade ores or production wastes containing magnesium dioxide
GEU20071322Y
(en)