- 专利标题： Polyester polyquaternary ammonium compound collectors for reverse froth flotation of silicates from nonsulfidic ores
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申请号： US15101300申请日： 2014-12-15
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公开(公告)号： US10100146B2公开(公告)日： 2018-10-16
- 发明人: Natalija Smolko-Schvarzmayr , Anders Klingberg
- 申请人： Akzo Nobel Chemicals International B.V.
- 申请人地址： NL Arnhem
- 专利权人： AKZO NOBEL CHEMICALS INTERNATIONAL, B.V.
- 当前专利权人： AKZO NOBEL CHEMICALS INTERNATIONAL, B.V.
- 当前专利权人地址： NL Arnhem
- 代理商 Matthew J. DeRuyter
- 优先权： EP13198074 20131218; EP13198086 20131218
- 国际申请： PCT/EP2014/077669 WO 20141215
- 国际公布： WO2015/091308 WO 20150625
- 主分类号： B03D1/02
- IPC分类号： B03D1/02 ; C08G63/91 ; B03D1/016 ; C07D219/06 ; B03D1/01 ; C07C229/24 ; C07C229/26
摘要：
The present invention relates to a compound obtainable by the condensation of a polyol having 3-4 hydroxyl groups, adicarboxylic acid or a derivative thereof, an alkanolamine and a fatty acid, followed by reaction with an alkylating agent. This compound is useful as a collector in a process for the reverse froth flotation of non-sulfidic ores containing silicate as impurities, especially phosphate ores.
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