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Title:
PALLADIUM EXTRACTION AGENT, PALLADIUM EXTRACTION METHOD, PALLADIUM RECOVERY METHOD, METHOD OF REGENERATING PALLADIUM EXTRACTION AGENT, AND REPEATED PALLADIUM RECOVERY METHOD
Document Type and Number:
WIPO Patent Application WO/2018/225738
Kind Code:
A1
Abstract:
This palladium extraction agent, which comprises an alkyl-sulfide-group-comprising disubstituted aromatic compound represented by general formula (I) as an active ingredient, can be used to selectively extract only palladium from a solution in which a mixture of platinum, rhodium, base metals, etc., is present, will not oxidize even after extended contact with acidic solutions, and can be used to extract palladium in a short length of time. (In the formula, R represents an optionally branched hydrocarbon group comprising 1–12 carbon atoms, an alicyclic hydrocarbon group comprising 5–7 carbon atoms, or an aromatic hydrocarbon group comprising 7 or 8 carbon atoms.)

Inventors:
YAMADA, Manabu (1-1 Tegata Gakuen-Machi, Akita-sh, Akita 02, 〒0108502, JP)
MUNIYAPPAN, Rajiv Gandhi (1-1 Tegata Gakuen-Machi, Akita-sh, Akita 02, 〒0108502, JP)
HAGA, Kazutoshi (1-1 Tegata Gakuen-Machi, Akita-sh, Akita 02, 〒0108502, JP)
SHIBAYAMA, Atsushi (1-1 Tegata Gakuen-Machi, Akita-sh, Akita 02, 〒0108502, JP)
Application Number:
JP2018/021569
Publication Date:
December 13, 2018
Filing Date:
June 05, 2018
Export Citation:
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Assignee:
AKITA UNIVERSITY (1-1 Tegata Gakuen-Machi, Akita-shi Akita, 02, 〒0108502, JP)
International Classes:
C22B11/00; B01D11/04; C22B3/34; C22B7/00
Foreign References:
JP2003119032A2003-04-23
JP2014172838A2014-09-22
JPS62246823A1987-10-28
Attorney, Agent or Firm:
YAMAMOTO, Noriaki (3rd Floor Oak Building Kyobashi, 16-10, Kyobashi 1-chome, Chuou-k, Tokyo 31, 〒1040031, JP)
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