無機粉体微粒子の製造法

Title:

無機粉体微粒子の製造法

Document Type and Number:

Japanese Patent JP4964513

Kind Code:

B2

Abstract:

To provide an efficient method for manufacturing inorganic powder particulates where inorganic powder slurry can be dehydrated for a short time even if the slurry is highly concentrated and finely granulated, a method for improving the water-filterability of the inorganic powder particulate slurry and a water-filterability improving agent for the inorganic powder particulate slurry.

The inorganic powder particulates are manufactured by the method that coarse inorganic powder particles crushed and slurried in an aqueous medium under the existence of either a polycarboxylic acid salt or a cationic polymer having a structural unit exhibited as formula (I) are added and mixed with another at a molar ratio of the polycarboxylic acid salt to the cationic polymer to be 25/75-85/15 and then dehydrated. In the formula, R1is H or a methyl group, R2and R3are each a 1-4C alkyl group, R4is H, a 1-3C alkyl group or a hydroxy-substituted alkyl group or a benzyl group, Z is -COO- or -CONH-, Y is a 2-4C alkylene group or a hydroxy-substituted alkylene group and X-is an anion.

Inventors:

Yoichi Ishibashi

Application Number:

JP2006171346A

Publication Date:

July 04, 2012

Filing Date:

June 21, 2006

Export Citation:

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Assignee:

Kao Corporation

International Classes:

C01F7/02; C01B21/068; C08L33/00; C08L35/00

Domestic Patent References:

JP62121633A

Attorney, Agent or Firm:

Satoshi Furuya
Takahiko Mizobe
Shinji Mochida
Yoshitsune Kazumasa

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