Title:
METHOD FOR PREPARING COMPOSITE PIGMENT FILLER FOR COATING BY USING RED MUD
Document Type and Number:
WIPO Patent Application WO/2022/233039
Kind Code:
A1
Abstract:
Embodiments of the present invention provide a method for preparing a composite pigment filler for a coating by using red mud. The method comprises: performing solid alkali treatment, ultra-fine processing, physical modification, and chemical modification on red mud raw materials. The solid alkali treatment is to prepare red mud into a slurry in a pulping apparatus under the action of a dispersing agent, then preparing the slurry into a solution of 1-50% by using an acidic neutralizing agent, and adding the solution into the pulping apparatus, and continuously stirring until the neutralization reaction is completed. The ultra-fine processing steps comprise drying treatment and ultrafine crushing treatment, and the ultrafine crushing treatment is performed by selecting a superfine crushing apparatus to crush dried red mud. The step of physical modification comprises: mixing a physical modifier and an adhesion promoter with the ultrafine crushed red mud to obtain a composite pigment filler. The step of chemical modification comprises performing surface treatment on the composite pigment filler with a modifier by using a modification apparatus to obtain a modified composite pigment filler.
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Inventors:
SHANG ZHIXIN (CN)
MA HONGCAI (CN)
WANG CHENNING (CN)
GUO HAO (CN)
ZHANG MEI (CN)
REN DONGYIN (CN)
MA HONGCAI (CN)
WANG CHENNING (CN)
GUO HAO (CN)
ZHANG MEI (CN)
REN DONGYIN (CN)
Application Number:
PCT/CN2021/092167
Publication Date:
November 10, 2022
Filing Date:
May 07, 2021
Export Citation:
Assignee:
UNIV DEZHOU (CN)
International Classes:
C09C1/40; C04B18/04; C04B20/02; C08K3/22; C09C3/04; C09C3/08; C09D7/61
Foreign References:
| CN111484651A | 2020-08-04 | |||
| CN109369048A | 2019-02-22 | |||
| CN103483880A | 2014-01-01 | |||
| CN109503032A | 2019-03-22 | |||
| CN107879367A | 2018-04-06 | |||
| CN103131214A | 2013-06-05 | |||
| CN108290792A | 2018-07-17 | |||
| CA1174008A | 1984-09-11 |
Attorney, Agent or Firm:
BEIJING BICREATION INTELLECTUAL PROPERTY LLC. (CN)
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