Title:
FOAM SEPARATION METHOD FOR MAGNESIUM HYDROXIDE COLLOIDAL SOLUTION
Document Type and Number:
WIPO Patent Application WO/2022/032726
Kind Code:
A1
Abstract:
A foam separation method for a magnesium hydroxide colloidal solution. The method comprises: adding an appropriate amount of a modifier to a magnesium hydroxide colloidal solution, and performing stirring and pulp conditioning; adding a foaming agent to magnesium hydroxide pulp and filling with a gas, and standing for several hours to obtain an upper layer and a clarified water layer, the upper layer being magnesium hydroxide, and foam being directly dried to obtain a magnesium hydroxide product. The method can achieve high-efficiency separation between magnesium hydroxide and water in the magnesium hydroxide colloidal solution, and also solves the problem of difficult filtration of magnesium hydroxide colloids in the conventional magnesium hydroxide precipitation process.
Inventors:
WANG LI (CN)
ZHANG YE (CN)
SUN WEI (CN)
XU RUI (CN)
HU YUEHUA (CN)
GAO JIANDE (CN)
ZHANG YE (CN)
SUN WEI (CN)
XU RUI (CN)
HU YUEHUA (CN)
GAO JIANDE (CN)
Application Number:
PCT/CN2020/111355
Publication Date:
February 17, 2022
Filing Date:
August 26, 2020
Export Citation:
Assignee:
UNIV CENTRAL SOUTH (CN)
International Classes:
B03D1/00; C01F5/22
Foreign References:
| CN102390848A | 2012-03-28 | |||
| CN106365184A | 2017-02-01 | |||
| CN105792942A | 2016-07-20 | |||
| US8197696B1 | 2012-06-12 | |||
| US10773973B2 | 2020-09-15 |
Attorney, Agent or Firm:
CHANGSHA RONG ZHI PATENT AGENCY (CN)
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