Title:
A HEAVY MAETAL CHELATE COMPOSITION CONTAINING CHITOSAN DERIVATIVES AND USES THEREOF
Document Type and Number:
WIPO Patent Application WO/2004/013219
Kind Code:
A1
Abstract:
The invention provides a heavy metal chelate composition, which contains 1-100wt% of chitosan derivatives with at least of one dithioc acid group, and 0-99wt% of polyamine derivatives with at least of one dithioc acid group. The heavy metal chelate composition applies to the processing for the waste water and the mud which contains the heavy metal ions, the flying ash caused by burning away the refuse, or the soil polluted by the heavy metal ions.
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Inventors:
REN QISHENG (CN)
SONG XINRONG (CN)
LI JIANQING (CN)
MA RUI (CN)
MEI ZONGFU (CN)
MA XINYUN (CN)
SONG XINRONG (CN)
LI JIANQING (CN)
MA RUI (CN)
MEI ZONGFU (CN)
MA XINYUN (CN)
Application Number:
PCT/CN2003/000589
Publication Date:
February 12, 2004
Filing Date:
July 23, 2003
Export Citation:
Assignee:
SHANDONG MEILINYA BIO TECH CO (CN)
REN QISHENG (CN)
SONG XINRONG (CN)
LI JIANQING (CN)
MA RUI (CN)
MEI ZONGFU (CN)
MA XINYUN (CN)
REN QISHENG (CN)
SONG XINRONG (CN)
LI JIANQING (CN)
MA RUI (CN)
MEI ZONGFU (CN)
MA XINYUN (CN)
International Classes:
A62D3/33; B09B3/00; B09C1/02; B09C1/08; C02F1/42; C02F1/68; C02F11/00; C08B37/08; C08K5/56; C08L5/00; C08L5/08; C08L79/02; A62D101/08; A62D101/43; (IPC1-7): C08L5/08; B09B3/00; B09C1/02; C02F1/62; C02F11/14; C09K5/16
Foreign References:
| JPS62262743A | 1987-11-14 | |||
| JPH09174020A | 1997-07-08 | |||
| JPS62266196A | 1987-11-18 | |||
| JPH0940936A | 1997-02-10 | |||
| EP0581164A1 | 1994-02-02 | |||
| EP0211305A2 | 1987-02-25 | |||
| US5387365A | 1995-02-07 | |||
| US2168375A | 1939-08-08 | |||
| JPH0550055A | 1993-03-02 |
Attorney, Agent or Firm:
JEEKAI & PARTNERS (Jinyu Tower A129 West Xuan Wu Men Street, Beijing 1, CN)
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