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Removal of Iron and Cobalt from Nickel Sulfate Mixture Solution by Oxidation with Chlorine
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Baojun MA1, Guanwen LUO2, Huanwu ZHAN1, Yuke SHEN2, Xingxia LAN2, Yilong LI1, Xuexian JIANG3, Fenglong SUN2, Ailiang CHEN2
Mining and Metallurgical Engineering | 2023, 43(2) : 97 - 101
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Mining and Metallurgical Engineering | 2023, 43(2): 97-101
• METALLURGY •
Removal of Iron and Cobalt from Nickel Sulfate Mixture Solution by Oxidation with Chlorine
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Baojun MA1, Guanwen LUO2, Huanwu ZHAN1, Yuke SHEN2, Xingxia LAN2, Yilong LI1, Xuexian JIANG3, Fenglong SUN2, Ailiang CHEN2
Affiliations
  • 1.Nandan Southern Nonferrous Metals Co Ltd, Nandan 547204, Guangxi, China
  • 2.School of Metallurgy and Environment, Central South University, Changsha 410083, Hunan, China
  • 3.Guilin University of Technology at Nanning, Nanning 530001, Guangxi, China
Published: 2023-04-01 doi: 10.3969/j.issn.0253-6099.2023.02.022
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The impurities of iron and cobalt in nickel sulfate mixture solution were removed by oxidation with chlorine, and the varying pattern for the potential of metal ions and pH value during the chlorine oxidation was investigated. Based on the thermodynamic analysis, the proper potential range for removing iron and cobalt was determined. Meanwhile, the effects of pH value, temperature among other factors on impurity removal were also investigated. Results show that the reaction temperature has little influence on the removal effect of iron and cobalt, but pH value can bring great impact. It is found that under the following optimal conditions, including reaction at 50 ℃ for 140 min, agitation at a rate of 400 r/min, pH value initially at 1.6 and maximally at 4.0-4.5, potential controlled within the range of 0.62-0.64 V for the stage of iron removal and at 1.08 V for the stage of cobalt removal, the content of iron and cobalt in the solution of nickel sulfate mixture can be reduced to less than 0.4 mg/L and 1 mg/L, respectively. It indicates that the removal rates of iron and cobalt approach 100%, meeting the requirement in the actual production of a domestic company (with iron content less than 1 mg/L and cobalt content less than 2 mg/L). Furthermore, the loss of nickel in this removal process is around 0.5%.

nickel solution  /  simultaneous impurity removal  /  chlorine  /  iron removal  /  cobalt removal  /  oxidation with chlorine
Baojun MA, Guanwen LUO, Huanwu ZHAN, Yuke SHEN, Xingxia LAN, Yilong LI, Xuexian JIANG, Fenglong SUN, Ailiang CHEN. Removal of Iron and Cobalt from Nickel Sulfate Mixture Solution by Oxidation with Chlorine[J]. Mining and Metallurgical Engineering, 2023 , 43 (2) : 97 -101 . DOI: 10.3969/j.issn.0253-6099.2023.02.022
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Year 2023 volume 43 Issue 2
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.02.022
  • Receive Date：2022-10-27
  • Online Date：2026-03-05
  • Published：2023-04-01
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History
  • Received：2022-10-27
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Affiliations
    1.Nandan Southern Nonferrous Metals Co Ltd, Nandan 547204, Guangxi, China
    2.School of Metallurgy and Environment, Central South University, Changsha 410083, Hunan, China
    3.Guilin University of Technology at Nanning, Nanning 530001, Guangxi, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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