发明授权
- 专利标题: Treatment of aqueous systems
- 专利标题(中): 水系统的处理
-
申请号: US846301申请日: 1977-10-28
-
公开(公告)号: US4192744A公开(公告)日: 1980-03-11
- 发明人: David R. Clark , Alan Marshall , Michael A. Finan
- 申请人: David R. Clark , Alan Marshall , Michael A. Finan
- 申请人地址: NY Ardsley
- 专利权人: Ciba-Geigy Corporation
- 当前专利权人: Ciba-Geigy Corporation
- 当前专利权人地址: NY Ardsley
- 优先权: GBX45464/76 19761102
- 主分类号: B01D21/01
- IPC分类号: B01D21/01 ; C02F1/52 ; C02F1/54 ; C02F1/64 ; C02F1/72 ; C02F5/00 ; C02F5/08 ; C02F5/10 ; C02F5/12 ; C02F101/20 ; C02F103/00 ; C09K3/00 ; C02B1/20
摘要:
Aqueous compositions containing compounds having the formula: ##STR1## wherein R is a straight- or branched alkyl residue containing 11 to 17 carbon atoms and X and Y are the same or different and each is an alkali metal, an alkaline earth metal, ammonium, an amine radical or hydrogen for selectively flocculating iron ions.
公开/授权文献
- US5948548A Coated article 公开/授权日:1999-09-07
信息查询