Purification method of zinc sulfate leachate

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United States of America Patent

PATENT NO 8545690
SERIAL NO

13480589

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Abstract

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A purification method of zinc sulfate leachate is provided. The purification method of zinc sulfate leachate comprises contacting the zinc sulfate leachate with a zinc powder under a non-oxidizing atmosphere to form solution containing a precipitate of impurity metal; and removing the precipitate of impurity metal from the solution and getting a purified zinc sulfate leachate. A purified zinc sulfate leachate may be prepared with a higher purification efficiency and a lower energy consumption than prior art.

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Patent Owner(s)

  • YUNNAN METALLURGICAL GROUP CO., LTD.;YUNNAN YONGCHANG PB&ZN CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dong, Ying Yunnan, CN 43 224
He, Guangshen Yunnan, CN 1 1
Wang, Jikun Yunnan, CN 2 5
Wu, Jiancun Yunnan, CN 1 1
Zhou, Changwu Yunnan, CN 1 1
Zhu, Guobang Yunnan, CN 1 1

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