Способ извлечения платины из шлама, получаемого при растворении платиносодержащего чугуна в серной кислоте: патент на изобретение

Translated title of the contribution: METHOD FOR EXTRACTING PLATINUM FROM SLURRY OBTAINED AT DILUTION OF PLATINUM-CONTAINING CAST-IRON IN SULPHURIC ACID: patent of invention

Владимир Геннадьевич Лобанов (Inventor), Ирина Николаевна Семина (Inventor), Евгений Александрович Кузас (Inventor), Антон Константинович Егиазарьян (Inventor), Максим Викторович Соловьев (Inventor), Андрей Александрович Евдокимов (Inventor)

Research output: Patent

Abstract

FIELD: metallurgy.
SUBSTANCE: invention refers to metallurgy of precious metals, and namely to processing of slurries and concentrates containing elementary silicon, carbon and platinum. Similar slurries are formed namely at dilution of platinum-containing cast-iron in sulphuric acid. Slurries are mixed with sodium carbonate at consumption of 120-150% of the weight of silicon and carbon in initial material and sintered at the temperature of 500-650°C during 1-2 hours. Sintered material is leached in water so that insoluble residue containing precious metals and being a concentrate of precious metals is obtained.
EFFECT: simpler technology and higher quality of concentrate.
Translated title of the contributionMETHOD FOR EXTRACTING PLATINUM FROM SLURRY OBTAINED AT DILUTION OF PLATINUM-CONTAINING CAST-IRON IN SULPHURIC ACID: patent of invention
Original languageRussian
Patent number2488638
IPCC22B 11/00,C22B 7/00,C22B 1/16,C22B 3/04
Filing date01/12/2011
Publication statusPublished - 27 Jul 2013

GRNTI

  • 31.15.00

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