ZA876329B - A process for leaching noble metals from ores or ore concentrates using cyanide-containing solutions with addition of hydrogen peroxide - Google Patents

A process for leaching noble metals from ores or ore concentrates using cyanide-containing solutions with addition of hydrogen peroxide

Info

Publication number
ZA876329B
ZA876329B ZA876329A ZA876329A ZA876329B ZA 876329 B ZA876329 B ZA 876329B ZA 876329 A ZA876329 A ZA 876329A ZA 876329 A ZA876329 A ZA 876329A ZA 876329 B ZA876329 B ZA 876329B
Authority
ZA
South Africa
Prior art keywords
ores
cyanide
addition
hydrogen peroxide
noble metals
Prior art date
Application number
ZA876329A
Other languages
English (en)
Inventor
Knorre Helmut
Griffiths Andrew
Loroesch Juergen
Fischer Joachim
Original Assignee
Degussa Aktiengesellschaft
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
Application filed by Degussa Aktiengesellschaft filed Critical Degussa Aktiengesellschaft
Publication of ZA876329B publication Critical patent/ZA876329B/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00—Obtaining noble metals
    • C22B11/08—Obtaining noble metals by cyaniding

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
ZA876329A 1986-10-31 1987-08-25 A process for leaching noble metals from ores or ore concentrates using cyanide-containing solutions with addition of hydrogen peroxide ZA876329B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3637082A DE3637082C1 (de) 1986-10-31 1986-10-31 Verfahren zur Laugung von Edelmetallen aus Erzen oder Erzkonzentraten mit cyanidischen Loesungen unter Zusatz von Wasserstoffperoxid

Publications (1)

Publication Number Publication Date
ZA876329B true ZA876329B (en) 1988-03-29

Family

ID=6312868

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA876329A ZA876329B (en) 1986-10-31 1987-08-25 A process for leaching noble metals from ores or ore concentrates using cyanide-containing solutions with addition of hydrogen peroxide

Country Status (13)

Country Link
US (1) US5275791A (de)
EP (1) EP0265736B1 (de)
AR (1) AR240177A1 (de)
BR (1) BR8705756A (de)
CA (1) CA1331518C (de)
DE (1) DE3637082C1 (de)
DO (1) DOP1987004572A (de)
ES (1) ES2027674T3 (de)
MX (1) MX169904B (de)
NZ (1) NZ222354A (de)
PH (1) PH24130A (de)
PT (1) PT86035B (de)
ZA (1) ZA876329B (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3801741C1 (de) * 1988-01-22 1989-06-15 Degussa Ag, 6000 Frankfurt, De
GB8810736D0 (en) * 1988-05-06 1988-06-08 Interox Chemicals Ltd Heap leaching
US5250272A (en) * 1988-09-09 1993-10-05 Degussa Aktiengesellschaft Process for leaching precious metals with hydrogen-peroxide and a cyanide leaching solution
DE3830703C1 (de) * 1988-09-09 1990-03-22 Degussa Ag, 6000 Frankfurt, De
NZ233186A (en) * 1989-04-04 1992-04-28 Interox Chemicals Ltd Extraction of gold or silver from ore using an aqueous alkaline cyanide solution containing a poorly soluble divalent metal peroxide
CA2051698C (en) * 1989-04-28 1997-12-30 Trevor John Smith Recovery of gold and silver from complex refractory sulphide ores by cyanidisation and oxidation with peroxides
DE4017899C1 (en) * 1990-06-02 1991-11-14 Degussa Ag, 6000 Frankfurt, De Extn. of silver and gold from ores - by contacting ore with aq. leaching soln. contg. cyanide in presence of peroxo:borate, and sepg. cyano complexes formed
DE4323251A1 (de) * 1993-07-12 1995-01-19 Degussa Verfahren und Vorrichtung zur kontinuierlichen Bestimmung der Konzentration von Wasserstoffperoxid und Oxidationsmitteln hierfür
CA2367651C (en) * 2001-03-13 2009-05-26 Her Majesty The Queen In Right Of Canada, As Represented By The Minist Of Natural Resources Canada Control of lead nitrate addition in gold recovery
RU2460814C1 (ru) * 2011-04-13 2012-09-10 Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" Способ извлечения золота из цианидных растворов c присутствующей в них растворенной ртутью
RU2458160C1 (ru) * 2011-04-26 2012-08-10 Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" Способ извлечения золота из цианидных растворов, содержащих ртуть
CN102505079A (zh) * 2011-12-30 2012-06-20 中矿金业股份有限公司 氰化浸出前的金精矿预处理方法
WO2013110420A1 (en) * 2012-01-27 2013-08-01 Evonik Degussa Gmbh Enrichment of metal sulfide ores by oxidant assisted froth flotation
CN103243222B (zh) * 2013-04-24 2014-04-09 中南大学 一种改性石硫合剂及其在浸金工艺中的应用
RU2557024C2 (ru) * 2013-12-02 2015-07-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Забайкальский государственный университет" (ФГБОУ ВПО "ЗабГУ") Способ кучного выщелачивания золота из руд
CN104232908B (zh) * 2014-09-17 2017-04-12 河南省岩石矿物测试中心 一种从含金炼汞尾渣中回收黄金的方法
CN104911371B (zh) * 2015-04-30 2017-08-25 上海圣的新材料有限公司 一种提金剂及其制备方法
RU2624751C1 (ru) * 2016-04-11 2017-07-06 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" Способ цианистого выщелачивания золота и серебра
WO2018197539A1 (en) 2017-04-26 2018-11-01 Solvay Sa Reduction of content of carboxylic acids and derivatives thereof in oleum, disulfuric acid or concentrated sulfuric acid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US732605A (en) * 1902-11-18 1903-06-30 Gustav E Thede Process of leaching ores.
US3826723A (en) * 1972-07-13 1974-07-30 Elmet Inc Process for recovering gold and silver
US4421724A (en) * 1981-09-08 1983-12-20 Anglo Mineral Resources, Inc. Extraction method for refractory precious metal ore
CA1221842A (en) * 1983-06-03 1987-05-19 Arthur E. Coburn Treatment of ores
US4578163A (en) * 1984-12-03 1986-03-25 Homestake Mining Company Gold recovery process
DE3801741C1 (de) * 1988-01-22 1989-06-15 Degussa Ag, 6000 Frankfurt, De

Also Published As

Publication number Publication date
AR240177A1 (es) 1990-02-28
PT86035A (de) 1987-11-01
PT86035B (pt) 1990-08-31
US5275791A (en) 1994-01-04
DE3637082C1 (de) 1988-05-19
DOP1987004572A (es) 1998-12-05
MX169904B (es) 1993-07-30
EP0265736A3 (en) 1990-01-24
CA1331518C (en) 1994-08-23
EP0265736B1 (de) 1992-01-15
AU589818B2 (en) 1989-10-19
PH24130A (en) 1990-03-05
AU8053387A (en) 1988-05-05
ES2027674T3 (es) 1992-06-16
NZ222354A (en) 1989-09-27
EP0265736A2 (de) 1988-05-04
BR8705756A (pt) 1988-05-31

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