发明名称 |
WERKWIJZE VOOR HET BEREIDEN VAN EEN CALCIUMCARBONAATSUSPENSIE. |
摘要 |
A stable, pumpable suspension of a calcium carbonate mineral is prepared by a method which includes the step of removing abrasive particles from a deflocculated, concentrated aqueous suspension of the calcium carbonate mineral by centrifuging the suspension at a solids content of at least 65% by weight under conditions such that the quantity of particles in said suspension having an equivalent spherical diameter larger than 10 mu m is reduced. |
申请公布号 |
NL183728(B) |
申请公布日期 |
1988.08.01 |
申请号 |
NL19780007898 |
申请日期 |
1978.07.25 |
申请人 |
ENGLISH CLAYS LOVERING POCHIN & COMPANY LIMITED TE ST. AUSTELL, GROOT-BRITTANNIE |
发明人 |
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分类号 |
C01F11/18;C09C1/02;C09D17/00;D21H19/38;D21H21/52;(IPC1-7):C09C1/02 |
主分类号 |
C01F11/18 |
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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