发明名称 |
SAETT ATT FRAMSTAELLA VATTENSUSPENSIONER INNEHAOLLANDE MINST 65 VIKT-% KALCIUMKARBONAT |
摘要 |
Process for the preparation of an aqueous suspension containing at least 65% by weight of calcium carbonate, in which process calcium carbonate is crystallized in a dilute aqueous medium, a wet concentrate of calcium carbonate is separated from the resulting dilute aqueous suspension of calcium carbonate and the said calcium carbonate concentrate is fluidized and homogenized in the presence of a dispersing agent. The calcium carbonate is crystallized in the presence of a water-soluble polyelectrolyte and the calcium carbonate concentrate is separated from the dilute suspension of calcium carbonate by essentially mechanical separating means. |
申请公布号 |
FI62272(C) |
申请公布日期 |
1982.12.10 |
申请号 |
FI19780001991 |
申请日期 |
1978.06.21 |
申请人 |
SOLVAY & CIE |
发明人 |
BRAHM JACQUES;RATH JEAN-PIERRE DE |
分类号 |
C01F11/18;C09C1/02;C09D17/00;D21H19/38;D21H19/52;(IPC1-7):C01F11/18 |
主分类号 |
C01F11/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|