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Title:
EXTRACTION SOLVENT FOR EXTRACTING METALLIC ELEMENTS, METHOD FOR PRODUCING SAME, AND METHOD FOR RECOVERING METALLIC ELEMENTS
Document Type and Number:
WIPO Patent Application WO/2013/171861
Kind Code:
A1
Abstract:
The present invention provides an extraction solvent for extracting metallic elements that is characterized in that: the total concentration of chlorine (Cl2) and hypochlorous acid (HOCl) is from 20 to 1000 ppm; chlorine (Cl2) and hypochlorous acid (HOCl) are included at a molar ratio of 1:1 to 1:11; the oxidation-reduction potential is from 1100 to 1400 mV; and the pH is from 1.7 to 3.7. The present invention also provides a method for producing said extraction solvent, and a method for recovering metallic elements by using said extraction solvent.

Inventors:
Yarlott, Timothy W (1436 Pine St, Napa California, 94559, US)
HANAOKA Kokichi (1187-4, Ueda Ueda-sh, Nagano 01, 〒3860001, JP)
TANAKA Hiroshi (2-36-3, Uchinodai Hamakita-ku, Hamamatsu-sh, Shizuoka 34, 〒4340034, JP)
Wullaert, Dick (PO Box 1848, Goleta California, 93116, US)
Miertschin, William R (6867, Anglebluff Circle Dalla, Texas ., 75248, US)
Alexander, Edward E (2428, Coral Sea Street Alamed, California ., 94501, US)
Application Number:
JP2012/062529
Publication Date:
November 21, 2013
Filing Date:
May 16, 2012
Export Citation:
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Assignee:
Yarlott, Timothy W (1436 Pine St, Napa California, 94559, US)
HANAOKA Kokichi (1187-4, Ueda Ueda-sh, Nagano 01, 〒3860001, JP)
TANAKA Hiroshi (2-36-3, Uchinodai Hamakita-ku, Hamamatsu-sh, Shizuoka 34, 〒4340034, JP)
Wullaert, Dick (PO Box 1848, Goleta California, 93116, US)
Miertschin, William R (6867, Anglebluff Circle Dalla, Texas ., 75248, US)
Alexander, Edward E (2428, Coral Sea Street Alamed, California ., 94501, US)
International Classes:
C22B3/04; C22B11/00
Foreign References:
JP2010007183A2010-01-14
JPS61127832A1986-06-16
JPS5845125A1983-03-16
Attorney, Agent or Firm:
TAKAHATA Yasuyo et al. (Room 1004, Maison-Sunshine 1-4, Higashi-Ikebukuro 3-chome, Toshima-k, Tokyo 13, 〒1700013, JP)
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