EA201700543A1 - METHOD FOR PROCESSING ORE AND CONCENTRATES CONTAINING PRECIOUS METALS AND MINERAL MERCURES - Google Patents
METHOD FOR PROCESSING ORE AND CONCENTRATES CONTAINING PRECIOUS METALS AND MINERAL MERCURESInfo
- Publication number
- EA201700543A1 EA201700543A1 EA201700543A EA201700543A EA201700543A1 EA 201700543 A1 EA201700543 A1 EA 201700543A1 EA 201700543 A EA201700543 A EA 201700543A EA 201700543 A EA201700543 A EA 201700543A EA 201700543 A1 EA201700543 A1 EA 201700543A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- precious metals
- silver
- gold
- mercury
- concentrates containing
- Prior art date
Links
Abstract
Изобретение относится к области металлургии цветных и драгоценных металлов, в частности переработке руд и концентратов, содержащих золото, серебро и минералы ртути. Осуществляют цианидное выщелачивание измельчённого материала, сорбцию драгоценных металлов и ртути из продуктивного раствора на активированный уголь. Насыщенный угольный сорбент обрабатывают в растворе хлороводородной кислоты, отмывают, высушивают и подвергают вакуум-термической обработке при температуре 400-450°C и остаточном давлении 1-8 кПа с конденсацией паров металлической ртути в охлаждаемом конденсаторе. Десорбцию драгоценных металлов с угольного сорбента после демеркуризации осуществляют щелочно-цианидным раствором в автоклавных условиях, выделение золота и серебра из элюата ведут электролизом. Техническим результатом является сокращение материальных затрат и повышение извлечения серебра в целевой сплав лигатурного золота.The invention relates to the field of metallurgy of non-ferrous and precious metals, in particular the processing of ores and concentrates containing gold, silver and minerals of mercury. Cyanide leaching of the crushed material, sorption of precious metals and mercury from the productive solution to activated carbon is carried out. The saturated carbon sorbent is treated in a solution of hydrochloric acid, washed, dried and subjected to vacuum heat treatment at a temperature of 400-450 ° C and a residual pressure of 1-8 kPa with condensation of metallic mercury vapor in a cooled condenser. After demercurization, desorption of precious metals from coal sorbent is carried out with an alkaline cyanide solution under autoclave conditions, and gold and silver are released from the eluate by electrolysis. The technical result is to reduce material costs and increase the extraction of silver in the target alloy of ligature gold.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA201700543A EA031261B1 (en) | 2017-11-22 | 2017-11-22 | Method for processing ores and concentrates, containing precious metals and mercury minerals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA201700543A EA031261B1 (en) | 2017-11-22 | 2017-11-22 | Method for processing ores and concentrates, containing precious metals and mercury minerals |
Publications (2)
Publication Number | Publication Date |
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EA201700543A1 true EA201700543A1 (en) | 2018-11-30 |
EA031261B1 EA031261B1 (en) | 2018-12-28 |
Family
ID=64453245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EA201700543A EA031261B1 (en) | 2017-11-22 | 2017-11-22 | Method for processing ores and concentrates, containing precious metals and mercury minerals |
Country Status (1)
Country | Link |
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EA (1) | EA031261B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2759390C1 (en) * | 2021-03-17 | 2021-11-12 | Общество с ограниченной ответственностью "Научно-исследовательский центр "Гидрометаллургия" | Method for separate isolation of gold and mercury from cyanide solutions |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1340169C (en) * | 1989-08-31 | 1998-12-08 | Ahmad Dadgar | Hydrometallurgical process for extracting gold and silver ores with bromate/perbromide solutions and compositions therefor |
CA2592095C (en) * | 2004-12-24 | 2013-07-30 | Basf Aktiengesellschaft | Use of nonionic surfactants in metal extraction |
RU2401311C2 (en) * | 2009-01-11 | 2010-10-10 | Институт химии Дальневосточного отделения Российской академии наук (статус государственного учреждения) (Институт химии ДВО РАН) | Method of extracting gold from concentrate |
RU2460814C1 (en) * | 2011-04-13 | 2012-09-10 | Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" | Method for gold extraction from cyanide solutions with dissolved mercury contained in them |
RU2458160C1 (en) * | 2011-04-26 | 2012-08-10 | Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" | Method of gold extraction from mercury-containing cyanic solutions |
RU2497963C1 (en) * | 2012-07-10 | 2013-11-10 | Общество С Ограниченной Ответственностью "Ильдиканзолото" | Method to process gold-containing ores with mercury admixture |
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2017
- 2017-11-22 EA EA201700543A patent/EA031261B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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EA031261B1 (en) | 2018-12-28 |
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Legal Events
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MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AZ BY TM |