Title:
金属捕集剤
Document Type and Number:
Japanese Patent JP4023928
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a collector excellent in power of combining with metals, such as Hg, Cd, Pb, and Zn, by using a polymer containing a specified amount of polyallylamine units having thiourea groups. SOLUTION: This collector comprises a polymer containing 1-100% units represented by formula II, which are derivatives of units represented by formula I, and 99-0% units represented by formula I and/or derivatives of units represented by formula I (provided the units represented by formula II are excluded) and is prepared by converting polyallylamine, obtained by polymerizing allylamine, into a hydrochloride and reacting the hydrochloride with ammonium thiocyanate to substitute active H atoms bonded to N atoms in repeating units represented by formula I constituting polyallylamine with thiourea groups. Since the collector is excellent in metal-collecting power even under acidic conditions and is high in power to penetrate into solid wastes, it is useful for collecting metals in waste water, solid wastes, and waste gases.
Inventors:
Koji Kawai
Toshi Takeuchi
Katsuyuki Sugiyama
Kazuo Hosoda
Masafumi Moriya
Toshi Takeuchi
Katsuyuki Sugiyama
Kazuo Hosoda
Masafumi Moriya
Application Number:
JP30325698A
Publication Date:
December 19, 2007
Filing Date:
October 09, 1998
Export Citation:
Assignee:
Miyoshi Oil & Fat Co., Ltd.
International Classes:
B01D53/64; B09B3/00; C09K3/00; B09C1/02; B09C1/08; C02F1/62; C02F11/00; C08F26/02
Domestic Patent References:
| JP49089691A | ||||
| JP11506488A | ||||
| JP11506501A | ||||
| JP10182732A | ||||
| JP3221579A |
Attorney, Agent or Firm:
Isamu Hosoi