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 under defined conditions with a sufficient amount and concentration of aluminum chlorhydrate (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 to the use of the clay in a papermaking process to absorb pitch and/or anionic trash.
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申请公布号 |
US5534057(A) |
申请公布日期 |
1996.07.09 |
申请号 |
US19950372081 |
申请日期 |
1995.01.13 |
申请人 |
J. M. HUBER CORPORATION |
发明人 |
HARRISON, JOHN M. M.;FREEMAN, GARY M.;MARSHALL, JR., CARL J.;MARVIN, JAMES C.;LAREAU, ALBERT F. |
分类号 |
C01B33/40;C09C1/42;D21C9/08;D21H17/67;D21H17/68;D21H21/02;(IPC1-7):C09C1/42 |
主分类号 |
C01B33/40 |
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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