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The treatment of copper–gold ores by ammonium

2002-10-1  Ammonium thiosulfate is particularly attractive as an alternative to cyanide for the treatment of copper–gold ores. The presence of copper is desirable in a thiosulfate leach, whereas it is detrimental in a cyanide leach.

Treatment of copper ores and concentrates with

Anderson, C.G. Treatment of copper ores and concentrates with industrial nitrogen species catalyzed pressure leaching and non-cyanide precious metals recovery. JOM 55, 32–36 (2003). https://doi/10.1007/s11837-003-0085-z. Download citation. Issue Date: April 2003. DOI: https://doi/10.1007/s11837-003-0085-z

Treatment of Oxidized Copper Ores with Emphasis on

2018-6-16  Treatment of Oxidized Copper Ores with Emphasis on Refractory Ores TONG DENG Institute of Chemical Metallurgy,Academia Sinica, Beijing, PR, 100080, China & JIAYONG CHEN Institute of Chemical Metallurgy,Academia Sinica, Beijing, PR, 100080, China

New methods in the metallurgical treatment of

New methods in the metallurgical treatment of copper ores. Author links open overlay panel N.S. Keith. Show more

treatment of copper ores rolldor.co.za

BRIEF DESCRIPTION This invention relates to the treatment of copper bearing ores or concentrates. In the past, it has been common to recover copper from certain copper bearing ores by leaching oxidized copper with sulfuric acid. Read the eBook Hydro-electrolytic treatment of copper ores Treatment of copper ore. 233.Treatment of copper ore. 239.

4月18日,Hydrometallurgical Treatment of Copper Ores and

2016-4-15  2016-4-15  主讲人:DavidDreisinger(加拿大工程院院士) 时间:2016年4月18日15:30 地点:冶金学院学术报告厅(稀土大楼A519) 主讲人简介: DavidDreisinger教授,博士毕业于加拿大皇后大学(Queen’sUniversity)冶金工程专业,1984年起

Analysis and metallurgical treatment of copper ores from

2020-10-28  copper matte contains 50%. eu. S, and,. c. 50%. FeS in the ratio of Fe = 31.6%. a~d lr..~% S of. a~alysis. of matte. Cu Fe S. 40 31.6 28.4 We now haYe to caloulate the proper. amOQ~ts. of. eu, Sand. Fe. it. will take to form a matte. Our ore contains. for. matting. Cu 15. S 26.7. Fe 11.9 Ibs reg for a. 40~ matte from 15% ore. Ass-uming that 601 of the total sulphur in the ore is burnt

Treatment of copper-rich gold ore by cyanide

2015-2-1  The treatment of a copper sulphide-bearing gold ore by direct cyanide leaching, ammonia pretreatment and ammoniacal cyanide leaching was investigated. Dissolution behaviour of gold and copper in these leaching systems was demonstrated.

Hydro-electrolytic treatment of copper ores

2011-11-10  TREATMENTOFCOPPERORE. 211 copper,followedbyafreshacidsolutionandlastlyawaterwash. Thecoppercontentsoftheliquorsisprecipitatedonscrapiron. Therebeingnofreesulphuricacid,theconsumptionofironisa

Analysis and metallurgical treatment of copper ores from

2020-10-28  ORES FROM. 3JO. BASIN,.ART ZONA. 00090000. The purpose in mind, in writing. this thesis, is to select. the. most economicBl method of treating the ores found. in the ~jo. Basin. The ore on the. surface, a~d. to a depth of. thirty to forty feet, is almost exclusively carbonates in a silicioua. gL~gue. Immediately. underl~ing. the carbonate ore

Treatment of Oxidized Copper Ores with Emphasis on

2018-6-16  (1991). Treatment of Oxidized Copper Ores with Emphasis on Refractory Ores. Mineral Processing and Extractive Metallurgy Review: Vol. 7, No. 3-4, pp. 175-207.

Treatment of Mixed Sulfide Oxide Ores of Copper

2016-9-25  Beside the ores containing copper mainly as sulfide, with a small amount of oxidized copper, many of the large porphyry mines have oxide orebodies, in which the proportion of non-sulfide minerals is so high that present methods of treatment are inefficient.

Treatment of copper ores and concentrates with

Treatment of copper ores and concentrates with industrial nitrogen species catalyzed pressure leaching and non-cyanide precious metals recovery Anderson, Corby G. Abstract. Today, with a stringent economic and environmental climate prevailing in the copper business, there is increased interest in evaluating new processing alternatives for

The treatment of refractory copper ores by the

The segregation process, discovered accidentally in 1923 by Moulden and Taplin of the Mineral Separations Company', consists in heating to temperatures above 600i?½C a mixture of oxide copper minerals with small amounts of halogen-bearing material such as sodium chloride, and a reducing agent such as coal or coke. This process is very different from the conventional chloridizing roast in that

treatment of copper ores rolldor.co.za

Treatment of copper ores_TON Group. Crushing and Grinding>Treatment of copper ores.Following is a list of minerals that serve as copper ores in the copper mining process: Name Formula % Copper when pure Chalcopyrite CuFeS 2 34.5 Chalcocite Cu 2 S beneficiation plant of copper oxide ore

Treatment of copper-rich gold ore by cyanide leaching

2015-3-2  tested for the treatment of copper-rich gold ores. Table 1 Solubility of copper minerals in 0.1% NaCN solution [1,2] w(Cu) dissolved/% Mineral Formula 23 °C 45 °C Azurite 2Cu(CO)3·Cu(OH)2 94.5 100.0 Malachite 2CuCO3(OH)2 90.2 100.0 Chalcocite Cu2S 90.2 100.0 Covellite CuS − − Native copper Cu 90 100.0 Cuprite Cu2O 85.5 100.0

Hydro-electrolytic treatment of copper ores

2011-11-10  Hydro-electrolytic Treatment of CopperOres By ROBERTRHEAGOODRICH SubmittedinPartialFulfilmentoftheRequirementsfortheDegreeof DoctorofPhilosophy,inthe

Treatment of ores MARVIN METALS INC

In the case of treatment of most ores containing one or more of the metals, lead, zinc, copper, cadmium and bismuth, the material may advantageously be next leached with an aqueous solution of acetic acid or other equivalent organic acid to separate such metal or metals from other metals which are present in free state or in the form of oxides

TREATMENT OF A COPPER RICH GOLD ORE BY

2016-8-3  TREATMENT OF A COPPER RICH GOLD ORE BY AMMONIA ASSISTED CYANIDE LEACHING . A D Bas. 1, *, E Y Yazici. 2. and H Deveci. 3. ABSTRACT . Copper minerals present difficulties during the cyanide leaching of gold ores leading to excessively high consumption of cyanide (and oxygen) coupled with low extraction of gold. Copper cyanide

Analysis and metallurgical treatment of copper ores from

2020-10-28  ORES FROM. 3JO. BASIN,.ART ZONA. 00090000. The purpose in mind, in writing. this thesis, is to select. the. most economicBl method of treating the ores found. in the ~jo. Basin. The ore on the. surface, a~d. to a depth of. thirty to forty feet, is almost exclusively carbonates in a silicioua. gL~gue. Immediately. underl~ing. the carbonate ore

treatment of copper ores rolldor.co.za

Treatment of copper ores_TON Group. Crushing and Grinding>Treatment of copper ores.Following is a list of minerals that serve as copper ores in the copper mining process: Name Formula % Copper when pure Chalcopyrite CuFeS 2 34.5 Chalcocite Cu 2 S beneficiation plant of copper oxide ore

Hydrometallurgical treatment of Haib copper ore

2009-8-27  conducted on Haib ores. The earliest was done by the National Institute for Metallurgy in 1968, so it actually predated the Rio Tinto exploration effort. These tests involved acid leaching of high grade oxidized copper ores Hydrometallurgical treatment of Haib copper ore by W.J. Schlitt* Synopsis The Namibian Copper Joint Venture has been

Hydro-Electrolytic Treatment of Copper Ores (Classic

Hydro-Electrolytic Treatment of Copper Ores (Classic Reprint): Goodrich, Robert Rhea: Amazon.sg: Books

Analysis and metallurgical treatment of copper ores

Analysis and metallurgical treatment of copper ores from Ajo Basin, Arizona . By Harry Carleton Chamberlain. Get PDF (1 MB) Abstract. The purpose in mind, in writing this thesis, is to select the most economical method of treating the ores found in the Ajo Basin. The ore on the surface, and to a depth of thirty to forty feet, is almost

THE TREATMENT OF OXY-CHLORIDE COPPER ORES,

2015-6-5  ICE Virtual Library essential engineering knowledge. Cart. Mobile

Treatment of ores MARVIN METALS INC

In the case of treatment of most ores containing one or more of the metals, lead, zinc, copper, cadmium and bismuth, the material may advantageously be next leached with an aqueous solution of acetic acid or other equivalent organic acid to separate such metal or metals from other metals which are present in free state or in the form of oxides

4月18日,Hydrometallurgical Treatment of Copper Ores and

2016-4-15  主讲人:DavidDreisinger(加拿大工程院院士) 时间:2016年4月18日15:30 地点:冶金学院学术报告厅(稀土大楼A519) 主讲人简介: DavidDreisinger教授,博士毕业于加拿大皇后大学(Queen’sUniversity)冶金工程专业,1984年起

The Metallurgy of Complex Lead-Zinc-Copper Ores

2019-5-21  The usual stages in the electrolytic treatment of lead-zinc ores are roasting, extraction with the acid zinc-sulphate solutions from the electrolytic cells, purification of the crude zinc-sulphate solution by the elimination of silica, iron, copper, cadmium and many metals in smaller quantities but of a highly deleterious nature, acidification

Reducing Copper Ores chestofbooks

I. Smelting By Fire Treatment Alone (A) Oxide ores smelted in blast furnaces to black copper. (B) Sulphide ores smelted in blast furnace to matte; matte converted to blister. (1) Strong reduction for low-sulphur ores. (2) Semipyritic smelting for medium-sulphur ores. (3) Pyritic smelting for high-sulphur silicious ores

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