| 发明名称 |
PROCESS FOR TREATING KAOLIN CLAYS FOR PITCH CONTROL AND THE TREATED CLAYS |
| 摘要 |
A process for beneficiating crude kaolin clay (10) under defined conditions with a sufficient amount and concentration of aluminum chlorohydrate (21) (0.5 to about 5.0 active wt.%) to improve the clay's ability to adsorb pitch during the process of making paper. The invention also relates to the treated clay and the use of the clay in a papermaking process to adsorb pitch and/or anionic trash.
|
| 申请公布号 |
CA2185139(C) |
申请公布日期 |
2001.02.20 |
| 申请号 |
CA19962185139 |
申请日期 |
1996.01.11 |
| 申请人 |
|
发明人 |
HARRISON, J.M.M.;FREEMAN, GARY M.;MARSHALL, CARL J., JR.;MARVIN, JAMES C.;LAREAU, ALBERT F. |
| 分类号 |
C01B33/40;C09C1/42;D21C9/08;D21H17/67;D21H17/68;D21H21/02;(IPC1-7):D21H21/02 |
主分类号 |
C01B33/40 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
