METAL RECOVERY METHOD FOR RECOVERING METAL FROM WASTEWATER, METAL-SEPARATING SUBSTANCE FOR USE IN RECOVERY OF METAL FROM WASTEWATER, AND WATER PURIFICATION DEVICE UTILIZING THE SUBSTANCE

WIPO Patent Application WO/2011/070798

A1

Disclosed are: a metal recovery method which can separate and recover a metal from wastewater rapidly and in a large quantity; a substance for use in the separation of a metal; and a water purification device utilizing the substance. Specifically disclosed are: a metal-separating substance which can be used for the recovery of a metal from wastewater, which is characterized by comprising a water-soluble polymer having an acidic group and an anion exchange resin; and a water purification device utilizing the metal-separating substance, which is characterized by comprising a first mixing vessel in which the wastewater is mixed with an aqueous solution of the water-soluble polymer having an acidic group and a second mixing vessel in which a solution produced by mixing the wastewater with the aqueous solution of the water-soluble polymer having an acidic group with an anion exchange resin, wherein a filter is arranged in the inferior part of the second mixing vessel, and the filter has pores so that the anion exchange resin can be held by the pores.

SASAKI HIROSHI (JP)
MURAKAMI HAJIME (JP)

PCT/JP2010/051840

June 16, 2011

February 09, 2010

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HITACHI LTD (JP)
SASAKI HIROSHI (JP)
MURAKAMI HAJIME (JP)

C02F1/42; B01J47/00; B01J47/10; B01J49/00; B03C1/00; B03C1/28; C02F1/46; C02F1/48; C02F1/62

JPS60137488A	1985-07-22
JPS5268247A	1977-06-06
JP2004154729A	2004-06-03
JPS5992028A	1984-05-28
JPH10202118A	1998-08-04

ASAMURA PATENT OFFICE, p. c. (JP)
Patent business corporation Asamura patent firm (JP)

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