Title:
METHOD FOR PURIFYING SELENIUM BY WET PROCESS
Document Type and Number:
Japanese Patent JP2012246198
Kind Code:
A
Abstract:
To provide a method for purifying selenium containing a platinum group by a wet process.
The method for purifying selenium includes: a process 1 of subjecting a first raw selenium containing 10-40 mass% of a platinum group and 40-70 mass% of Se to oxidation elution in an acidic aqueous solution with the oxidation-reduction potential, vs. Ag/AgCl, adjusted to 360-600 mV, and obtaining an eluted solution containing Se by solid/liquid separation; and a process 2 of blowing a reducing gas into the eluted solution obtained in the process 1 to make Se reduction-precipitate and obtaining purified selenium by solid/liquid separation.
Inventors:
OKAJIMA NOBUAKI
Application Number:
JP2011121102A
Publication Date:
December 13, 2012
Filing Date:
May 30, 2011
Export Citation:
Assignee:
PAN PACIFIC COPPER CO LTD
International Classes:
C01B19/02; C22B3/04; C22B3/26; C22B3/44; C22B7/00; C22B11/00; C22B15/00
Attorney, Agent or Firm:
Axis International Patent Business Corporation