FIELD: metallurgy. SUBSTANCE: invention can be used for joint or separate processing of concentrates of sulfide ores and man-made waste containing noble metals ( gold, silver, platinum, etc ) which is based on oxidizing roasting, use of aqua regia and hydrogen peroxide. Gases liberated in process-sulfur oxide (IV) and nitrogen oxides are used to produce sulfuric and nitric acids which in their turns are employed in given process which leads to avoidance of their bringing to production site. EFFECT: method makes it possible to exclude action of gases and liquid waste on environment, to increase productivity and efficiency of processing. 2 cl, 1 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD OF UTILIZING OXIDE TETRAVALENT SULFUR IN LEACHING OF CONCENTRATES OF NONFERROUS AND NOBLE METAL ORES | 1999 |
|
RU2153015C1 |
METHOD OF RENDERING HARMLESS AND REGENERATION OF CYANODES IN LEACHING OF METALS FROM ORES, CONCENTRATES AND TECHNOGENIC WASTES | 1998 |
|
RU2141538C1 |
METHOD OF PROCESSING OF SULPHIDE CONCENTRATES | 2007 |
|
RU2337162C1 |
METHOD FOR COMPLEX PROCESSING OF SULPHIDE-OXIDISED COPPER-PORPHYRITIC ORES | 2018 |
|
RU2685621C1 |
METHOD OF COMPLEX PROCESSING OF PYRITIC RAW MATERIALS | 2016 |
|
RU2627835C2 |
METHOD OF OXIDIZING ROASTING OF PYRITE-CONTAINING MATERIALS | 1991 |
|
RU2007482C1 |
METHOD FOR SELECTIVE EXTRACTION OF NOBLE METALS FROM GOLD-BEARING CEMENTATE | 2021 |
|
RU2775555C1 |
METHOD FOR EXTRACTION OF PRECIOUS METALS | 2006 |
|
RU2291907C1 |
LEACHING METHOD FOR PRODUCTS, CONTAINING METALS SULFIDES | 2007 |
|
RU2339708C1 |
METHOD FOR HYDROMETALLURGICAL REPROCESSING OF SULFIDE CONCENTRATES | 2007 |
|
RU2339706C1 |
Authors
Dates
2000-11-10—Published
2000-01-21—Filed