Author: Bernard J. ScheinerPublisher:
ISBN:
Category : Carbonate minerals
Languages : en
Pages : 20
Book Description
Electrolytic Oxidation of Carbonaceous Ores for Improving Gold Recovery
Author: Bernard J. ScheinerPublisher:
ISBN:
Category : Carbonate minerals
Languages : en
Pages : 20
Book Description
Electrolytic Oxidation of Carbonaceous Ores for Improving Gold Recovery
Author: B. J. ScheinerOxidation Process for Improving Gold Recovery from Carbon-bearing Gold Ores
Author: Bernard J. ScheinerPublisher:
ISBN:
Category : Gold ores
Languages : en
Pages : 22
Book Description
Extraction of Gold from Carbonaceous Ores
Author: Publisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 28
Book Description
Oxidation procedures based on the chlorine-hypochlorite system were investigated for improving gold recovery from carbonaceous gold ores. The oxidation pretreatment prior to cyanidation was accomplished by (1) addition of sodium hypochlorite to ore pulp, (2) by addition of chlorine to ore pulp, and (3) by generation of hypochlorite in situ by electrolysis of a brine solution used to pulp the ore. Gold extraction of 90 pct was achieved by cyanidation of carbonaceous ore that had been pretreated with 20 lb per ton sodium hypochlorite at 50° C for 4 hours. Similarly, pretreatment of the ore pulp with 35 lb chlorine per ton at 24° to 30° C and 15 hours reaction time resulted in 89-pct gold extraction by subsequent cyaanidation. Concomitant studies showed that electrolyzing the pulp prepared with a brine solution was equally as effective as electrolyzing hypochlorite and chlorine for oxidizing carbonaceous ore constituents that are deleterious to cyanidation. Gold extraction of 90 pct was obtained by electrolysis when 275 lb of ore was treated at 200 amp for 7 hours in an 8- to 10-pct salt solution. Power consumption was in the range of 60 kwhr per ton.
Oxidation Process for Improving Gold Recovery from Carbon-bearing Gold Ores
Author: Bernard J. ScheinerGold
Author: Nathaniel ArbiterPublisher: CRC Press
ISBN: 9782881243974
Category : Business & Economics
Languages : en
Pages : 242
Book Description
The eight articles first appeared as volume 6 (no date) of Mineral processing and extractive metallurgy review. They review new methods of recovery for gold, and to some extent, silver, focus on the particular challenges of extraction from carbonaceous ores and from various sulfide-bearing ore, and the treatment of refractory gold ore, and discuss high-temperature and biological oxidation, high- temperature chlorination, and removing metals from leach liquor. Book club price, $40. Annotation copyrighted by Book News, Inc., Portland, OR
Investigation of Oxidation Systems for Improving Gold Recovery from Carbonaceous Materials
Author: Bernard J. ScheinerPublisher:
ISBN:
Category : Carbonate minerals
Languages : en
Pages : 16
Book Description
A Process for the Recovery of Gold from Activated Carbon by Leaching and Electrolysis
Author: J. B. ZadraInvestigation of Oxidation Systems for Improving Gold Recovery from Carbonaceous Materials
Author: B. J. ScheinerThe Chemistry of Gold Extraction
Author: John MarsdenPublisher: SME
ISBN: 9780873352406
Category : Science
Languages : en
Pages : 688
Book Description
Extensively revised and updated, this edition provides the broad base of knowledge required by all working in the gold extraction and gold processing industries. It bridges the gap between research and industry by emphasizing practical applications of chemical principles and techniques.