发明名称 |
Use of a derivative of aspartic acid as a collector in forth flotation processes |
摘要 |
A derivative of aspartic acid is used as a collector for a phosphate containing mineral, such as apatite, in a froth flotation process. According to the invention the collector has a high selectivity for phosphate containing minerals even in the presence of carbonate minerals, such as calcite. The derivative has the formula (I) where RI is a hydrophobic group containing a hydrocarbon group of 6-24 carbon atoms; RII is an alkyl group with 1-7 carbon atoms or a group of the formula (B)yH, in which B is an alkyleneoxy group with 2-4 carbon atoms and y is a number from 1 to 10; and M is a group selected from the group consisting of a cation or hydrogen. Methods for producing the derivative are also described. |
申请公布号 |
ZA200604828(B) |
申请公布日期 |
2007.04.25 |
申请号 |
ZA20060004828 |
申请日期 |
2006.06.12 |
申请人 |
AKZO NOBEL N.V. |
发明人 |
EISENHUTH, LUDWIG;KLINGBERG, ANDERS;HENRIKSSON, ELISABETH |
分类号 |
B03D;B03D1/004;B03D1/008;B03D1/01;B03D1/02;B03D1/06;C07C;C07C229/24 |
主分类号 |
B03D |
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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