Cascade Studies on Separation of Nickel,Cobalt and Magnesium during Process for Recovery of the Spent MH-Ni and Cd-Ni Batteries Anode Material

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Cascade Studies on Separation of Nickel,Cobalt and Magnesium during Process for Recovery of the Spent MH-Ni and Cd-Ni Batteries Anode Material

更新时间：2026-01-19

- Cascade Studies on Separation of Nickel,Cobalt and Magnesium during Process for Recovery of the Spent MH-Ni and Cd-Ni Batteries Anode Material
- Issue 4, Pages: 36-41(2013)
- 作者机构：
  
  景德镇市环境检测站
- 作者简介：
- 基金信息：
- DOI：
  CLC： X705;TM912
- Published：2013
- 稿件说明：
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[1]丁颖.废旧氢镍、镉镍电池正极材料回收中镍和钴、镁分离的萃取串级研究[J].能源研究与管理,2013(04):36-41.

丁颖. Cascade Studies on Separation of Nickel,Cobalt and Magnesium during Process for Recovery of the Spent MH-Ni and Cd-Ni Batteries Anode Material[J]. 2013, (4): 36-41.
[1]丁颖.废旧氢镍、镉镍电池正极材料回收中镍和钴、镁分离的萃取串级研究[J].能源研究与管理,2013(04):36-41. DOI：

丁颖. Cascade Studies on Separation of Nickel,Cobalt and Magnesium during Process for Recovery of the Spent MH-Ni and Cd-Ni Batteries Anode Material[J]. 2013, (4): 36-41. DOI：

摘要

设计了综合回收氢镍、镉镍电池正极材料中镍、钴并同时除镁的萃取流程。针对回收液进行了P507萃取分离镍钴、镍、镁的试验。有机相为20%P507+80%煤油（以质量分数计）

萃取平衡pH值为4.5

.0时

平均分离系数βNi/Co达140

βNi/Mg达20

5;分2段分别洗涤镍和镁

将洗涤镍的平衡pH值控制在（5.0±0.1）

洗涤镁的平衡pH值控制在（4.4±0.1）

镁的去除率达到94.5%。镍的回收率为99.3%

钴的回收率为99.1%

镁的去除率为94.02%。将回收所得硫酸镍溶液和硫酸钴溶液浓缩结晶

可得到满足通用企业标准HG/T 2824—1997中的一级电镀产品要求的产品。

Abstract

The paper designs an extraction flow for the total recovery of nickel and cobalt and removing magnesium simultaneously from the cathodic materials of the spent hydrogen-nickel and cadmium-nickel batteries.The separation of Co

Ni and Mg though P507 extraction.The extraction equilibrium pH is 4.5

βNi/Co is 140

and βNi/Mg is 20

5;nickel and magnesium are scrubbed in two steps

in which the equilibrium pH of nickel and magnesium scrubbing is controlled at（5.0±0.1） and（4.4±0.1） respectively.The stepwise scrubbing technique is adopted to remove 94.5% of magnesium and to recover 99.45% of nickel and 95.35% of cobalt.During the integrated extraction

and precipitation process the total recovery rate of nickel and cobalt are 99.99% and 99.95%

and the removal rate of magnesium is 94.02%.The recovered NiSO4 and CoSO4 solution are enriched and crystallized.

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