发明名称 |
FROTH FLOTATION PROCESS FOR THE SEPARATION OF SILICATES AND ALKALINE EARTH METAL CARBONATES USING A COLLECTOR COMPRISING AT LEAST ONE HYDROPHOBICALLY MODIFIED POLYALKYLENEIMINE |
摘要 |
The invention refers to a process to separate silicates and alkaline earth metal carbonates implementing at least one hydrophobically modified polyalkyleneimine, wherein:
i) the polyalkyleneimine is hydrophobically modified by replacement of all or part of the hydrogens of their primary and/or secondary amino groups by functional group R, where R comprises a linear or branched or cyclic alkyl and/or aryl group and contains 1 to 32 carbon atoms;
ii) prior to modification, the polyalkyleneimine has at least 3 alkyleneimine repeat units and a molecular weight of between 140 and 100 000 g/mol;
iii) modification of the polyalkyleneimine results in an increase in the atomic C amount, relative to the unmodified polyalkyleneimine, of between 1 and 80 %. The invention additionally refers to a silicate-containing product and an alkaline earth metal carbonate-containing product obtained by the process of the invention, and to their uses. |
申请公布号 |
HRP20140018(T1) |
申请公布日期 |
2014.02.14 |
申请号 |
HR2014P000018T |
申请日期 |
2014.01.07 |
申请人 |
OMYA INTERNATIONAL AG |
发明人 |
GANE, PATRICK A.C.;BURI, MATTHIAS;RENTSCH, SAMUEL;SOETEMANN, JOERG |
分类号 |
B03D1/01;B03D1/08;B03D1/12;B03D101/02;C22B1/00;C22B26/00;C22B26/20 |
主分类号 |
B03D1/01 |
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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