引用本文:
李全民, 白海鑫, 吕文英. 氯化钠-硫氰酸铵-结晶紫体系浮选分离锌(Ⅱ)[J]. 应用化学,
2002, 19(7): 649-652.
Citation: LI Quan-Min, BAI Hai-Xin, LÜ Wen-Ying. Separation of Zinc by Sodium Chloride-Ammonium Thiocyanate-Crystal Violet Floatation System[J]. Chinese Journal of Applied Chemistry, 2002, 19(7): 649-652.
Citation: LI Quan-Min, BAI Hai-Xin, LÜ Wen-Ying. Separation of Zinc by Sodium Chloride-Ammonium Thiocyanate-Crystal Violet Floatation System[J]. Chinese Journal of Applied Chemistry, 2002, 19(7): 649-652.
氯化钠-硫氰酸铵-结晶紫体系浮选分离锌(Ⅱ)
English
Separation of Zinc by Sodium Chloride-Ammonium Thiocyanate-Crystal Violet Floatation System
Abstract:
The separation of Zn(Ⅱ) by a floatation system consisted of sodium chloride, ammonium thiocyanate and crystal violet has been studied. The results showed that in the aqueous solutions Zn(Ⅱ) combines with ammonium thiocyanate and crystal violet(CV) into a ternary ion-association precipitate [Zn(SCN)42-]·(CV+)2. Presence of small quantity of sodium chloride caused the precipitate to be floated well on the surface of water phase and separated with water more completely. Zn(Ⅱ) can be completely separated from Fe(Ⅲ)、Al(Ⅲ)、Ni(Ⅱ)、Mn(Ⅱ)、Cd(Ⅱ) by floatation at pH 1~4 of water phase. The method is simple and rapid.
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Key words:
- zinc(Ⅱ)
- / ammonium thiocyanate
- / crystal violet
- / floatation separation
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