Experimental Research on Catalytic Oxidation and Hydrochloric Acid Leaching of Nickel and Cobalt from Nickel Concentrate AITranslate
Abstract AITranslate
Research is done on the catalytic oxidation and hydrochloric acid leaching of nickel and cobalt from nickel concentrate under normal pressure with oxygen and copper chloride as oxidizing agent and catalytic agent, respectively. The influences were investigated of leaching temperature, leaching acidity, oxidation-reduction potential, particle size of nickel concentrate and catalytic agent concentration on nickel and cobalt leaching rate. The optimal technical parameters of hydrochloric acid catalytic oxidation leaching were determined by experimental study. The leaching rate of nickel and cobalt can reach 98. 16% and 93.32% respectively under the conditions as follows：leaching duration of 180 min,leaching temperature of 90℃ ,final potential of leaching solution of 520 mV, nickel concentrate particle size less than 0. 075 mm, stirring speed of 600 r/min,liquid-solid ratio of 4 ： 1,leaching acidity of 2 mol/L,Cu2＋ concentration of 25 g/L, NaCl concentration of 100 g/L,and oxygen flow rate of 0.5-0.6 L/min.
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DOI：
Chinese Library Classification Number:TF803.21[冶金工程—有色金属冶金]
Citation Information:
Research is done on the catalytic oxidation and hydrochloric acid leaching of nickel and cobalt from nickel concentrate under normal pressure with oxygen and copper chloride as oxidizing agent and catalytic agent, respectively. The influences were investigated of leaching temperature, leaching acidity, oxidation-reduction potential, particle size of nickel concentrate and catalytic agent concentration on nickel and cobalt leaching rate. The optimal technical parameters of hydrochloric acid catalytic oxidation leaching were determined by experimental study. The leaching rate of nickel and cobalt can reach 98. 16% and 93.32% respectively under the conditions as follows：leaching duration of 180 min,leaching temperature of 90℃ ,final potential of leaching solution of 520 mV, nickel concentrate particle size less than 0. 075 mm, stirring speed of 600 r/min,liquid-solid ratio of 4 ： 1,leaching acidity of 2 mol/L,Cu2＋ concentration of 25 g/L, NaCl concentration of 100 g/L,and oxygen flow rate of 0.5-0.6 L/min.
quote
| GB/T 7714-2015 | [1] XIE Sheng-zhong, HOU Xiao-chuan, LI He, et al. Experimental Research on Catalytic Oxidation and Hydrochloric Acid Leaching of Nickel and Cobalt from Nickel Concentrate[J]. Rare Metals and Cemented Carbides, 2017(3): 10-14. |
| MLA | [1] XIE Sheng-zhong, et al., "Experimental Research on Catalytic Oxidation and Hydrochloric Acid Leaching of Nickel and Cobalt from Nickel Concentrate." Rare Metals and Cemented Carbides, no. 3, 2017, pp. 10-14. |
| APA | [1] XIE Sheng-zhong, HOU Xiao-chuan, LI He, & YANG Run-de. (2017). Experimental Research on Catalytic Oxidation and Hydrochloric Acid Leaching of Nickel and Cobalt from Nickel Concentrate. Rare Metals and Cemented Carbides(3), 10-14. |
| IEEE | [1] XIE Sheng-zhong, HOU Xiao-chuan, LI He, and YANG Run-de, "Experimental Research on Catalytic Oxidation and Hydrochloric Acid Leaching of Nickel and Cobalt from Nickel Concentrate," Rare Metals and Cemented Carbides, no. 3, pp. 10-14, 2017. keywords: {nickel concentrate;nickel;cobalt;catalytic oxidation;hydrochloric acid leaching;leaching rate;hydrometallurgical process} |