METHOD FOR PRODUCING CRUDE CADMIUM - JX NIPPON MINING & METALS CORP

Title:

METHOD FOR PRODUCING CRUDE CADMIUM

Document Type and Number:

Japanese Patent JP2012077374

Kind Code:

A

Abstract:

To increase the concentration of cadmium by a simple method, and to easily and stably obtain crude cadmium having a relatively high purity (Cd>90%) even if some impurities are present.

The method for producing crude cadmium is characterized in that an alkali agent is added to a cadmium aqueous solution, the obtained cadmium hydroxide is dissolved into acid once again, alkali is added thereto, and copper removing treatment is performed at a pH of 5.5 to 7.0 to obtain an electrolytic solution having a high Cd concentration.

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Inventors:

HIGUCHI NAOKI
OKAMOTO HIDENORI
NAGAI HIFUMI
FUNAKI NAOTO

Application Number:

JP2010235894A

Publication Date:

April 19, 2012

Filing Date:

October 04, 2010

Export Citation:

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Assignee:

JX NIPPON MINING & METALS CORP

International Classes:

C25C1/16; C22B3/04; C22B3/44; C22B7/00; C22B15/00; C22B17/00; C22B19/30

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