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专利名称：Use of a derivative of aspartic acid as a
collector in froth flotation processes
发明人：Ludwig Eisenhuth,Elisabeth
Henriksson,Anders Klingberg
申请号：US10578106申请日：20041105
公开号：US20070071665A1公开日：20070329
摘要：A derivative of aspartic acid is used as a collector for a phosphate containingmineral, such as apatite, in a froth flotation process. According to the invention thecollector has a high selectivity for phosphate containing minerals even in the presence ofcarbonate minerals, such as calcite. The derivative has the formula (1) where Ris ahydrophobic group containing a hydrocarbon group of 6-24 carbon atoms; Ris an alkylgroup with 1-7 carbon atoms or a group of the formula (B)H, in which B is an alkyleneoxygroup with 24 carbon atoms and y is a number from 1 to 10; and M is a group selectedfrom the group consisting of a cation or hydrogen. Methods for producing the derivativeare also described.
申请人：Ludwig Eisenhuth,Elisabeth Henriksson,Anders Klingberg
地址：Obernburg DE,Kode SE,Henan SE
国籍：DE,SE,SE
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