发明名称 |
ESTERIFIED DICARBOXYLIC ACID AND ITS USE |
摘要 |
The present invention specifies an esterified dicarboxylic acid of the general formula <IMAGE> in which RI is an aliphatic hydrocarbon group with 7-21 carbon atoms, RII is a hydrocarbon radical with 2-6 carbon atoms and A is an alkylene oxide group derived from an alkylene oxide with 2-4 carbon atoms. Particularly preferred are compounds in which A relates to a group derived from ethylene oxide and in which RII is -CH=CH- or the phenylene group -C6H4-. The compound exhibits selective properties when used in the flotation of oxide and salt type minerals. |
申请公布号 |
ZA8203025(B) |
申请公布日期 |
1983.03.30 |
申请号 |
ZA19820003025 |
申请日期 |
1982.05.03 |
申请人 |
BEROL KEMI AB |
发明人 |
HELLSTEN KARL MARTIN EDWIN;KLINGBERG ANDERS WILLIAM |
分类号 |
C07C69/28;B03D1/001;B03D1/008;B03D1/02 |
主分类号 |
C07C69/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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