DEHYDRATING AGENT FOR SLUDGE, AND METHOD FOR MANUFACTURING THE SAME

Title:

DEHYDRATING AGENT FOR SLUDGE, AND METHOD FOR MANUFACTURING THE SAME

Document Type and Number:

Japanese Patent JP2012101192

Kind Code:

A

Abstract:

To provide a powdery dehydrating agent for sludge which can be manufactured by solution polymerization, and expresses an excellent flocculation performance and dehydration performance for various kinds of sludge, and to provide a method for manufacturing the same.

The method for manufacturing the powdery dehydrating agent for sludge includes: a polymerization process which carries out solution polymerization in an aqueous solution in which 20-70 mass% of the following (a)-(c) components are contained; and a drying process which removes water from a product obtained by the polymerization process: (a) component: a cationic vinyl monomer which has a quaternary ammonium base and/or a tertiary amino group, (b) component: an anionic monomer 35-80 mol% of an acid radical of which is neutralized with an alkaline material, and (c) component: a nonionic monomer.

Inventors:

ITO HIROSHI
MURAMATSU YASUNORI
HOTTA HIROJI

Application Number:

JP2010252656A

Publication Date:

May 31, 2012

Filing Date:

November 11, 2010

Export Citation:

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Assignee:

MT AQUAPOLYMER INC

International Classes:

C02F11/14; B01D21/01

Domestic Patent References:

JP2002256032A	2002-09-11
JPS5840306A	1983-03-09
JPH07256299A	1995-10-09
JP2003261626A	2003-09-19

Foreign References:

WO2008050702A1

2008-05-02

Attorney, Agent or Firm:

Yasuyo Takahata
Yoshihiro Kimura

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