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41 4 ( ) Vol.41 No.4
2010 8 Journal of Central South University (Science and Technology) Aug. 2010
1, 2 1 1
(1. 410083
2. 737100)
200 mL Cu2+ 60 g/L 3% H O 4 mL
2 2
20% 3 mL 10 min Na CO pH 3.80 60
2 3
min As 94.17% Sb 45.95% Bi 88.64% Fe
98.83%
TF804 A 1672−7207(2010)04−1251−05
Remove of arsenic, antimony and bismuth from
crude crystal copper sulfate
1, 2 1 1
CHEN Sheng-li , GUO Xue-yi , LIANG Yong-xuan
(1. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China;
2. Jinchuan Nonferrous Metals Company, Jinchang 737100, China)
Abstract: Arsenic, antimony and bismuth in crude copper sulfate were removed by oxidization-neutralization-
coprecipitation method to meet the quality requirement of copper sulfate for electrowinning copper powder. The results
show that, under the following experimental conditions, such as 3% H2O2 of 4 mL and 20% polymerized ferric sulfate of
3 mL are added into 200 mL solution with Cu2+ concentration of 60 g/L and oxidation time is controlled to be 10 min,
after being filtrated, the pH of filtrate is adjusted to be 3.80 by Na2CO3 and reaction time is confirmed to be 60 min, the
comprehensive
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