موقعك الحالي:صفحة رئيسية>المنتجات
2018-2-27 · Cobalt in the copper solvent extraction raffinate was recovered by (1) solvent extraction with Cyanex 272 (an alkyl phosphinic acid-type extractant),
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RECOVERY OF COBALT AND COPPER FROM COMPLEX SULFIDE CONCENTRATES By R. O. Dannenberg,1 P. C. Gardner/ S. R. Crane/ and D. C. SeideP ABSTRACT The Bureau of Mines conducted laboratory investigations with the objective of developing an alternative process for recovering cobalt and copper from complex sulfide concentrates. Processes currently used de
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2022-1-17 · "The Bureau of Mines conducted laboratory investigations with the objective of developing an alternative process for recovering cobalt and copper from complex sulfide concentrates. Processes currently used depend largely upon precipitation techniques to remove impurities and recover cobalt from sulfate liquors prepared by oxidative pressure ...
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Recovery of copper, nickel and cobalt from the acidic pressure leaching solutions of Jinbaoshan (YN Province, PRC) low-grade sulfide flotation concentrates was investigated.
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Recovery of copper, nickel and cobalt from the acidic pressure leaching solutions of Jinbaoshan (YN Province, PRC) low-grade sulfide flotation concentrates was investigated. ... In the acidic pressure leaching of Jinbaoshan flotation sulfide concentrates, almost all (>99%) of Cu, Ni and Co sulfides are oxidized to sulfates and leached into the ...
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2012-2-7 · This technology is applicable to the recovery of nickel, cobalt, copper, and platinum group metals from furnace or converter slags emanating from copper or nickel smelters treating sulphide concentrates. Pilot-plant testwork
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2007-6-1 · Based on the data listed in Table 3, it was calculated that the percent copper extraction by XD 5640 reached 99.9%, and its percent stripping recovery reached 95.5%.The total recovery of copper in the process reaches 95% or more. It is also indicated that the co-extraction rate of nickel and cobalt was near to 0%, with no loses in the process.
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The leaching results of nickel, copper, iron and cobalt was analyzed by ICP methods. Process possibility of polymetallic sulfide concentrates through a three-step procedure (oxidation roasting — chlorination — water leaching) was suggested. Ammonium chloride could react with nickel/copper oxides to produce intermediate complexes.
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2014-9-8 · dissemination of nickel and cobalt, they were leached remarkably faster when copper leaching recovery exceeded 90%. Keywords: atmospheric leaching, cobalt, nickel, sulphuric acid, Lubin copper concentrate. Introduction The traditional treatment of copper flotation sulphide concentrates by smelting,
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The Bureau of Mines conducted laboratory investigations with the objective of developing an alternative process for recovering cobalt and copper from complex sulfide concentrates. Processes currently used depend largely upon precipitation techniques to remove impurities and recover cobalt from sulfate liquors prepared by oxidative pressure leaching of the sulfide
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Low grade copper sulfide containing concentrates and ores are treated with an alkaline cyanide, such as calcium cyanide and excess lime or sodium cyanide and excess sodium alkali. This dissolves the copper sulfide as a complex cyanide, the liquor is separated from the denuded solids, and the solids washed with water to remove adhering soluble ...
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2020-11-22 · The electrolytic production of metallic zinc from processing zinc sulfide concentrates generates a residue containing cadmium, copper, and cobalt that need to be removed from the electrolytic zinc ...
Read More2016-2-3 · The leaching results of nickel, copper, iron and cobalt was analyzed by ICP methods. Process possibility of polymetallic sulfide concentrates through a three-step procedure (oxidation roasting - chlorination - water leaching) was suggested. Ammonium chloride could react with nickel/copper oxides to produce intermediate complexes.
Read MoreThe leaching results of nickel, copper, iron and cobalt was analyzed by ICP methods. Process possibility of polymetallic sulfide concentrates through a three-step procedure (oxidation roasting — chlorination — water leaching) was suggested. Ammonium chloride could react with nickel/copper oxides to produce intermediate complexes.
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2009-10-15 · ØTraditionally, copper, nickel, cobalt, zinc and lead recovery from sulfide deposits by, mining, flotation of concentrates and finally smelting/refining of the concentrates through to final products ØBut ØComplex fine grained ores– poor for flotation, suited to leaching ØPyrometallurgy expensive, environment (gases and
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2021-11-2 · CESL has developed a hydrometallurgical process for treating Copper and Nickel sulphide concentrates, including bulk concentrates. Both Cu and Ni are leached efficiently into solution, using a proprietary pressure oxidation process, along with other base metals, notably Co. CESL developed the ... recovery of nickel and cobalt from the leach ...
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EXTRACTING METALS FROM SULFIDE ORES. Many important metals are present in nature combined with sulfur as metal sulfides; these include cadmium, cobalt, copper, lead, molybdenum, nickel, silver, and zinc. In addition, gold
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2018-12-22 · This procedure resulted in cobalt-nickel concentrates ranging from 4.1 to 5.7 pct Ni and 2.8 to 3.8 pct Co at a recovery of 79 pct. Ferric chloride leaching results in greater separation of the cobalt- nickel, but essentially all of the copper is taken into solution and must then be recovered by electrolysis.
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2014-10-1 · and sometimes pyrrhotite are present as gangue sulfide minerals in copper sulfide deposits. High-grade, copper sulfide concentrates, (typically greater than about 25% w/w Cu), are commonly treated via pyrometallurgical route. s, while hydrometallurgical routes are typically favoured for lower grade or impurity bearing concentrates.
Read MoreLow grade copper sulfide containing concentrates and ores are treated with an alkaline cyanide, such as calcium cyanide and excess lime or sodium cyanide and excess sodium alkali. This dissolves the copper sulfide as a complex cyanide, the liquor is separated from the denuded solids, and the solids washed with water to remove adhering soluble ...
Read More2016-2-3 · The leaching results of nickel, copper, iron and cobalt was analyzed by ICP methods. Process possibility of polymetallic sulfide concentrates through a three-step procedure (oxidation roasting - chlorination - water leaching) was suggested. Ammonium chloride could react with nickel/copper oxides to produce intermediate complexes.
Read More2021-11-2 · CESL has developed a hydrometallurgical process for treating Copper and Nickel sulphide concentrates, including bulk concentrates. Both Cu and Ni are leached efficiently into solution, using a proprietary pressure oxidation process, along with other base metals, notably Co. CESL developed the ... recovery of nickel and cobalt from the leach ...
Read More2009-10-15 · ØTraditionally, copper, nickel, cobalt, zinc and lead recovery from sulfide deposits by, mining, flotation of concentrates and finally smelting/refining of the concentrates through to final products ØBut ØComplex fine grained ores– poor for flotation, suited to leaching ØPyrometallurgy expensive, environment (gases and
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EXTRACTING METALS FROM SULFIDE ORES. Many important metals are present in nature combined with sulfur as metal sulfides; these include cadmium, cobalt, copper, lead, molybdenum, nickel, silver, and zinc. In addition, gold and
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2020-4-16 · copper recovery with a yield of 99.63%. At pH=11, the concentrate was found at 16.1% copper recovery with a yield of 99.05%. For the recovery of cobalt, DANA (105 g/t) was found better as the collector at natural pH producing a concentrate at 0.51% cobalt recovery yield of 76.48%. At pH=11, PAX (105 g/t) was found better as the collector.
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2017-5-22 · sulphation of copper, and likely cobalt. However, the kinetics of the sulphation roasting process are generally inferior. INTRODUCTION Roasting of sulphide concentrates, in particular copper and cobalt concentrates from central Africa, is a well-established unit operation in the extraction flowsh eet of these elements. In a typical copper-cobalt
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2019-1-1 · Hydrometallurgical processing of copper concentrates using metathesis reactions, which replace iron with copper in copper-iron sulphide minerals and increase the copper to sulphur ratio in copper sulphide minerals, provide an opportunity to upgrade copper concentrates and potentially allow high copper recovery for a high grade concentrate.
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2015-12-3 · D.A.Norrgra’s patent [16] proposes to recover some nonferrous metals (copper, nickel, cobalt and zinc) from sulfide ore by co-firing with a carbonate or bicarbonate of alkali metals, eg, with sodium car-bonate added to mix material for obtaining sulphati - zation reaction. For enriching ore containing copper,
Read More2014-10-1 · and sometimes pyrrhotite are present as gangue sulfide minerals in copper sulfide deposits. High-grade, copper sulfide concentrates, (typically greater than about 25% w/w Cu), are commonly treated via pyrometallurgical route. s, while hydrometallurgical routes are typically favoured for lower grade or impurity bearing concentrates.
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الصين -تشنغ تشو -المنطقة الوطنية للتنمية الصناعية للتكنولوجيا المتطورة، جادة العلوم رقم 169.
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