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首页> 外文期刊>Separation and Purification Technology >A study on the acidified ferric chloride leaching of a complex (Cu-Ni-Co-Fe) matte
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A study on the acidified ferric chloride leaching of a complex (Cu-Ni-Co-Fe) matte

机译：复合（Cu-Ni-Co-Fe）雾面的酸性氯化铁浸出研究

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The acidified ferric chloride leaching of an artificial matte was carried out to investigate the extraction behaviour of copper,nickel,and cobalt.The composition of the synthetically prepared Cu-Ni-Co-Fe matte was:24.95% Cu,35.05% Ni,4.05% Co,11.45% Fe,and 24.5% S.The major mineral phases of the matte were:CuFeS_2,CuS_2,(FeNi)_9S_8,(FeNi)S_2,Ni_9S_8,Ni_3S_2,(CoFeNi)_9S_8 and Co metal.The effects of time (0-7 h),temperature (30-90 deg C),FeCl_3 (0.5-2.0 M) and HC1 (0.1-0.5 M) concentrations were studied with and without the presence of an organic solvent (CCl_4).The Cu extraction was fast compared to Ni and Co and reached equilibrium within 3 h in FeCl_3 medium.The extraction of all the three metals increased with increase of temperature.The effect was found to be the maximum for Co,followed by Ni and Cu.Under optimum conditions (1.5 M FeCl_3,0.3 M HCl,90 deg C and 7 h),99.5% Cu,93.2% Ni and 85.2% Co was extracted to the solution.When carbon tetrachloride was added to the reaction medium,the extraction of metals increased due to the solubilisation of elemental sulphur coated around the sulphide mineral particles.From the XRD study the undissolved Ni phase was found to be (FeNi)_9S_8 and undissolved Co phase was cobalt metal.
机译：进行了人工哑光酸化三氯化铁的浸出研究，研究了铜，镍和钴的萃取行为。合成制备的Cu-Ni-Co-Fe哑光的组成为：24.95％Cu，35.05％Ni，4.05 Co，11.45％Fe和24.5％S.哑光的主要矿物相为：CuFeS_2，CuS_2，（FeNi）_9S_8，（FeNi）S_2，Ni_9S_8，Ni_3S_2，（CoFeNi）_9S_8和Co金属。在有或没有有机溶剂（CCl_4）的情况下研究了时间（0-7 h），温度（30-90摄氏度），FeCl_3（0.5-2.0 M）和HCl（0.1-0.5 M）的浓度。与Fe和Ni相比，FeCl_3的萃取速度快，并在FeCl_3介质中3h达到平衡。随着温度的升高，三种金属的萃取均增加。条件（1.5 M FeCl_3,0.3 M HCl，90°C和7 h），将99.5％的Cu，93.2％的Ni和85.2％的Co萃取到溶液中。当将四氯化碳添加到反应介质中时在X射线衍射研究中，发现未溶解的Ni相为（FeNi）_9S_8，未溶解的Co相为钴金属。

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