کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
212379 462046 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of Cu from the nickel electrolysis anolyte using nickel thiocarbonate
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Removal of Cu from the nickel electrolysis anolyte using nickel thiocarbonate
چکیده انگلیسی

In this research, a novel reagent, nickel thiocarbonate (NiCS3), was synthesized to remove Cu from the nickel electrolysis anolyte. Through the experimental research, the effect of reagent amount of NiCS3, reaction temperature, pH value and reaction time on the copper removal was investigated. The experimental results showed that NiCS3 had high reaction activity, and Cu in the nickel electrolysis anolyte can be removed quickly. With the optimal reaction conditions of reagent amount of NiCS3 1.4–1.6 times of theoretical amount, reaction temperature of ≥ 60 °C, pH value of 4.0 and reaction time of 30 min, the Cu concentration was reduced to less than 3 mg/l in the nickel electrolysis anolyte and the mass ratio of Cu/Ni in the Cu-removal precipitates exceeded 15. The result can well satisfy the production requirement of qualified electrodeposited nickel. Therefore, NiCS3 can be used as the high-efficiency reagent to remove copper from the nickel electrolysis anolyte in the large-scale industrial production.


► A novel copper removal reagent, NiCS3, was prepared to remove copper.
► The Cu concentration can be reduced to less than 3 mg/l in a short time.
► The mass ratio of Cu/Ni exceeded 15 in the Cu-removal precipitates.
► The Cu-removal method was suitable for large-scale industrial production.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 133, February 2013, Pages 106–110
نویسندگان
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