| 发明名称 |
Activation of swelling clays |
| 摘要 |
PCT No. PCT/GB97/00648 Sec. 371 Date Oct. 5, 1998 Sec. 102(e) Date Oct. 5, 1998 PCT Filed Mar. 10, 1997 PCT Pub. No. WO97/33040 PCT Pub. Date Sep. 12, 1997Alkaline earth bentonite can be activated by the use of sodium citrate or other organic sequestering agent as activator. Dry blends of the activator and the bentonite can be provided.
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| 申请公布号 |
US6024790(A) |
申请公布日期 |
2000.02.15 |
| 申请号 |
US19980142220 |
申请日期 |
1998.10.06 |
| 申请人 |
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED |
发明人 |
ALLEN, ADRIAN SWINBURN;STOCKWELL, JOHN OLIVER;BLACK, IAN JAMES |
| 分类号 |
C04B33/13;C04B33/04;C04B33/18;C09C1/42;D21H17/07;D21H17/10;D21H17/14;D21H17/15;D21H17/66;D21H17/68;D21H17/69;D21H23/04;(IPC1-7):C04B33/02 |
主分类号 |
C04B33/13 |
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