RU93049151A - EXTRACTION OF NOBLE METALS FROM RESISTANT (SOLID) ORES - Google Patents

EXTRACTION OF NOBLE METALS FROM RESISTANT (SOLID) ORES

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Publication number
RU93049151A
RU93049151A RU93049151/02A RU93049151A RU93049151A RU 93049151 A RU93049151 A RU 93049151A RU 93049151/02 A RU93049151/02 A RU 93049151/02A RU 93049151 A RU93049151 A RU 93049151A RU 93049151 A RU93049151 A RU 93049151A
Authority
RU
Russia
Prior art keywords
ore
nitric acid
ores
extraction
resistant
Prior art date
Application number
RU93049151/02A
Other languages
Russian (ru)
Other versions
RU2086682C1 (en
Inventor
Р.Шо Дуглас
Дж.Батер Лэрри
Original Assignee
ФМК Голд Компани
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/921,534 external-priority patent/US5236492A/en
Application filed by ФМК Голд Компани filed Critical ФМК Голд Компани
Publication of RU93049151A publication Critical patent/RU93049151A/en
Application granted granted Critical
Publication of RU2086682C1 publication Critical patent/RU2086682C1/en

Links

Claims (1)

Предложен гидрометаллургический способ извлечения благородных металлов из руд, упорных (твердых) для обработки выщелачивающими реагентами. Он включает дробление руды до номинального размера по меньшей мере 1/4 дюйма (0,64 см), подкисление ее минеральной кислотой, обработку подкисленной руды азотной кислотой. Затем таким образом обработанную руду размещают на вершине непроницаемого собирателя в виде кучного проницаемого слоя, через который диспергируют водный раствор азотной кислоты, а затем проводят водную промывку кучной руды. После промывки кучной руды ее выщелачивают и извлекают благородные металлы из выщелачиваемого раствора. Генерированные во время предварительного окисления руды газы NOx подают в генератор азотной кислоты для превращения их в азотную кислоту, которую рециркулируют для обработки руды.A hydrometallurgical method for the extraction of precious metals from ores resistant (solid) for treatment with leaching reagents is proposed. It includes crushing the ore to a nominal size of at least 1/4 inch (0.64 cm), acidifying it with mineral acid, treating the acidified ore with nitric acid. Then, the thus treated ore is placed on top of the impermeable collector in the form of a heap permeable layer through which an aqueous solution of nitric acid is dispersed, and then water washing of the heap ore is carried out. After washing the heap ore, it is leached and precious metals are recovered from the leached solution. The NO x gases generated during the pre-oxidation of the ore are supplied to a nitric acid generator to convert them to nitric acid, which is recycled to treat the ore.
RU9393049151A 1992-07-29 1993-07-28 Hydrometallurgical method of extracting precious metals from persistent sulfide ore RU2086682C1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US07/921,534 US5236492A (en) 1992-07-29 1992-07-29 Recovery of precious metal values from refractory ores
US921534 1992-07-29
US921.534 1992-07-29
CN93109628A CN1099071A (en) 1992-07-29 1993-08-16 Reclaim the method for precious metal values from difficult ore

Publications (2)

Publication Number Publication Date
RU93049151A true RU93049151A (en) 1997-03-20
RU2086682C1 RU2086682C1 (en) 1997-08-10

Family

ID=36847688

Family Applications (1)

Application Number Title Priority Date Filing Date
RU9393049151A RU2086682C1 (en) 1992-07-29 1993-07-28 Hydrometallurgical method of extracting precious metals from persistent sulfide ore

Country Status (6)

Country Link
US (1) US5236492A (en)
CN (1) CN1099071A (en)
AU (1) AU647694B2 (en)
CA (1) CA2101495C (en)
MX (1) MX9304546A (en)
RU (1) RU2086682C1 (en)

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US7915474B2 (en) * 2009-04-01 2011-03-29 Earth Renewal Group, Llc Aqueous phase oxidation process
US8481800B2 (en) * 2009-04-01 2013-07-09 Earth Renewal Group, Llc Aqueous phase oxidation process
US8115047B2 (en) * 2009-04-01 2012-02-14 Earth Renewal Group, Llc Aqueous phase oxidation process
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US8936770B2 (en) 2010-01-22 2015-01-20 Molycorp Minerals, Llc Hydrometallurgical process and method for recovering metals
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CA2820700C (en) 2010-12-07 2015-11-24 Barrick Gold Corporation Co-current and counter current resin-in-leach in gold leaching processes
AR086933A1 (en) 2011-06-15 2014-01-29 Barrick Gold Corp METHOD FOR RECOVERING PRECIOUS METALS AND COPPER OF LIXIVIATE SOLUTIONS
RU2502814C2 (en) * 2012-02-24 2013-12-27 Общество с ограниченной ответственностью "Управляющая компания Ариэнт" Combined method of heap leaching of gold from refractory sulphide ores
WO2014110518A1 (en) 2013-01-14 2014-07-17 Simmons William D Flotation circuit for oxide and sulfide ores
US10161016B2 (en) 2013-05-29 2018-12-25 Barrick Gold Corporation Method for pre-treatment of gold-bearing oxide ores
EP3234206B1 (en) 2014-12-17 2019-10-30 BHP Billiton Olympic Dam Corporation Pty Ltd Heap leaching method
CL2015001298A1 (en) * 2015-05-13 2016-05-20 Univ Técnica Federico Santa María Agglomeration drum and mineral agglomeration procedure for mineral pretreatment.
US10167202B2 (en) 2016-02-23 2019-01-01 King Abdullah University Of Science And Technology Enhanced metal recovery through oxidation in liquid and/or supercritical carbon dioxide
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PE20211512A1 (en) 2019-01-21 2021-08-11 Barrick Gold Corp METHOD FOR CARBON-CATALYZED THOSULFATE LEACHING OF MATERIALS CONTAINING GOLD
CN113308609A (en) * 2021-05-26 2021-08-27 江苏北矿金属循环利用科技有限公司 Method for clean recovery and resource utilization of spent silver-containing waste catalyst

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