leaching of oxidised copper ore

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Leaching Oxidized Copper Ores: Effect Of Strength Of Acid ...

LEACHING OXIDIZED COPPER ORES; EFFECT OF STRENGTH OF ACID IN LEACHING SOLVENT 1 By John D. SuIlivan 2 and G. L. Oldri~ht3 INTRODUCTION In leaching oopper ores knowledge of the rate of dissolut!on of the copper mine rals an of t he impurities i s des irable. With knowledge of these two factors and data as to what

Leaching Oxidized Copper Ores: Effect of Strength of Acid ...

May 31, 2020· In leaching copper ores knowledge of the rate of dissolution of the copper minerals and of the impurities is desirable. With knowledge of these two factors and data as to what minerals are present in the ore the metallurgist has an excellent start on planning a leach-ing cycle to fit that ore. The rate of dissolution is rather difficult to predict, and theAuthor: John D. Sullivan, G. L. Oldright

Studies on Leaching of Oxidized Copper Ore from South ...

Feb 03, 2016· The results show that copper leaching rate of 92.02% were achieved under the optimized conditions as follows: raw ore crushed to 100%passing 1mm, leaching by sulfuric acid at 70°C for 1.5h with a sulfuric acid consumpti on of 150kg/t, liquid-solid ratio of 2:1, stirring rate of 300r/min.

Agitation and column leaching studies of oxidised copper ...

Sep 01, 2017· The efficiency of reductive leaching of oxidised copper-cobalt ore with sulphuric acid is highly dependent on pH (≈1.5). The pH can be maintained by the addition of make-up acid. Moreover, the amount of reducing agent used to reduce Co(III) is only partially utilised ( Miller, 2008 ), a good part of it is therefore found unreacted in the leach liquor in forms of SO 2 or sulphite species.Cited by: 6

Studies on Leaching of Oxidized Copper Ore from South ...

高达10%返现· A leaching study was conducted on South America oxidized copper ore assaying 3.10% Cu, and the process parameters were optimized, including leaching temperature, leaching time, acid consumption, liquid-solid ratio and stirring rate.Author: Deqing Zhu, Tengjiao Wu, Zhenqi Guo, Jian Pan, Ziyun Li