a study of the effect of djurliete, bornite and chalcopyrite during the dissolution of gold with a solution of ammonia-cyanide研究djurliete的影响,斑铜矿、黄铜矿溶解黄金ammonia-cyanide的解决方案.pdfVIP

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a study of the effect of djurliete, bornite and chalcopyrite during the dissolution of gold with a solution of ammonia-cyanide研究djurliete的影响,斑铜矿、黄铜矿溶解黄金ammonia-cyanide的解决方案.pdf

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a study of the effect of djurliete, bornite and chalcopyrite during the dissolution of gold with a solution of ammonia-cyanide研究djurliete的影响,斑铜矿、黄铜矿溶解黄金ammonia-cyanide的解决方案

Minerals 2012, 2, 459-472; doi:10.3390/min2040459 OPEN ACCESS minerals ISSN 2075-163X /journal/minerals Article A Study of the Effect of Djurliete, Bornite and Chalcopyrite during the Dissolution of Gold with a Solution of Ammonia-Cyanide Guy Deschênes 1*, Hai Guo 2, Chen Xia 1, Allen Pratt 1, Mike Fulton 1, Yeonuk Choi 3 and 1 Judith Price 1 CanmetMining, 555 Booth Street, Ottawa, Ontario K1A 0G1, Canada; E-Mails: cxia@nrcan.gc.ca (C.X.); apratt@nrcan.gc.ca (A.P.); michaelfltn685@ (M.F.); Judith.Price@NRCan-RNCan.gc.ca (J.P.) 2 Eldorado Gold Corporation, 1188-550 Burrard Street, Vancouver, BC V6C2B5, Canada; E-Mail: Hai.Guo@ 3 Barrick Gold Corporation, 161 Bay Street, Toronto, Ontario M5J2S1 Canada; E-Mail: ychoi@ * Author to whom correspondence should be addressed; E-Mail: gdeschen@nrcan.gc.ca; Tel.: + 1-613-992-0415; Fax: + 1-613-947-1200. Received: 25 July 2012; in revised form : 28 September 2012 / Accepted: 18 October 2012 / Published: 20 November 2012 Abstract: The high solubility of copper sulphide minerals is an issue in the cyanidation of gold ores. The objective of this study was to quantify the effect of individual copper sulphide minerals on the Hunt process, which showed advantages over cyanidation. High purity djurleite, bornite and chalcopyrite, with a P70 of 70–74 microns, were mixed with fine quartz and gold powder (3–8 micron) to obtain a copper concentration of 0.3%. The ammonia-cyanide leaching of slurry with djurleite proved to be more effect