SU1440943A1 - Method of purifying zinc sulfate solutions from copper and cadmium - Google Patents
Method of purifying zinc sulfate solutions from copper and cadmium Download PDFInfo
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- SU1440943A1 SU1440943A1 SU874243447A SU4243447A SU1440943A1 SU 1440943 A1 SU1440943 A1 SU 1440943A1 SU 874243447 A SU874243447 A SU 874243447A SU 4243447 A SU4243447 A SU 4243447A SU 1440943 A1 SU1440943 A1 SU 1440943A1
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- zinc
- cadmium
- copper
- zinc sulfate
- purification
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Abstract
Изобретение относитс к гидрометаллургическому производству цинка, в частности к очистке сульфатных цинковых растворов от примесей. Цель изобретени - упрощение процесса и экономи цинкового порошка. Очистку сульфатных цинковых растворов от меди и кадми осуществл ют цементацией с наложением электрического тока при его катодной плотности 40000 - 50000 А/м. 1 табл.This invention relates to the hydrometallurgical production of zinc, in particular to the purification of zinc sulphate solutions from impurities. The purpose of the invention is to simplify the process and save zinc powder. The removal of copper and cadmium from sulphate zinc solutions is carried out by cementation with the application of an electric current with a cathode density of 40,000 - 50,000 A / m. 1 tab.
Description
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Изобретегше относитс к гидрометаллургическому производству цинка, в частности к очистке сульфатных гди ковых растворов от примесей.The invention relates to hydrometallurgical zinc production, in particular to the purification of sulphate gypsum solutions from impurities.
Целью изобретени вл етс упрощение процесса и экономи цинкового порошка.The aim of the invention is to simplify the process and save zinc powder.
Изобретение иллюстрируетс следующими примерами The invention is illustrated by the following examples.
В каждом опыте в электролизер заливают 200 мл раствора сульфата цинка ., содержащего 154 г/л цинка, ,2,54 г/л меди, 1,6 г/л кадми . Элекролиз провод т при следугацих катод- ных плотност х тока: 20000, 30000, 40000, 50000In each experiment, 200 ml of zinc sulphate solution containing 154 g / l of zinc, 2.54 g / l of copper, 1.6 g / l of cadmium are poured into the electrolyzer. The electrolysis is carried out at the following cathode current densities: 20,000, 30,000, 40,000, 50,000
S juuuu,, 60000 А/м . Электролизер состоит из стекл нного корпуса цили1едрическим цинковым анодом и иглообразный алюминиевым катодом в центре.цилиндра. Электролиз .провод т в течение времени, необходимого дл наработки двойного избытка от стехиометрического к сумме, примесей меди И-кадьш (см,таблицу) ., После окончаш электролиза провод т цементацию в течение 15 мин,, Осадок отфильтровывают и в фильтратах оп- i S juuuu ,, 60000 A / m The cell consists of a glass case with a central zinc anode and a needle-shaped aluminum cathode in the center of the cylinder. The electrolysis is carried out for the time necessary for producing a double excess from stoichiometric to the sum of copper impurities I-cad (see table). After the end of the electrolysis, the carburization is carried out for 15 min.
редел ют пол рографическим методом остаточное содержание меди и кадми . Результаты анализа фильтрата приведены в таблицеThe residual content of copper and cadmium is determined by the polarographic method. The results of the analysis of the filtrate are given in the table.
Применение предложенного способа очистки сульфатных цинковых растворов от примесей позвол ет исключить расход дефицитного цинкового порош- кл за счет наработки его электролизом непосредственно в объеме электролита. Достигаетс также упрощение процесса благодар исключению операции обраб от- ки раствора цинкокадмиевым кеком и внесению в раствор цинкового порошка.The application of the proposed method of purification of sulphate zinc solutions from impurities eliminates the consumption of scarce zinc powder due to the accumulation of electrolyte directly in the electrolyte volume. Simplification of the process is also achieved by eliminating the operation of treating the solution with zinc-cadmium cake and introducing zinc powder into the solution.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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SU874243447A SU1440943A1 (en) | 1987-05-12 | 1987-05-12 | Method of purifying zinc sulfate solutions from copper and cadmium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874243447A SU1440943A1 (en) | 1987-05-12 | 1987-05-12 | Method of purifying zinc sulfate solutions from copper and cadmium |
Publications (1)
Publication Number | Publication Date |
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SU1440943A1 true SU1440943A1 (en) | 1988-11-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU874243447A SU1440943A1 (en) | 1987-05-12 | 1987-05-12 | Method of purifying zinc sulfate solutions from copper and cadmium |
Country Status (1)
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SU (1) | SU1440943A1 (en) |
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1987
- 1987-05-12 SU SU874243447A patent/SU1440943A1/en active
Non-Patent Citations (1)
Title |
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Авторское свидетельство -СССР № 665008, кл. С 22 В 19/26, 1977о Авторское свидетельство СССР № 557114, кп. С 22 В 19/26, 1975. * |
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