Title:
MAGNETIC MAGNESIUM-MANGANESE LAYERED DOUBLE METAL OXIDE COMPOSITE MATERIAL, PREPARATION AND APPLICATION
Document Type and Number:
WIPO Patent Application WO/2020/093880
Kind Code:
A1
Abstract:
A magnetic magnesium-manganese layered double metal oxide composite material, a preparation and an application. Soluble magnesium and manganese salts are dissolved in water to obtain a composite solution of magnesium and manganese salts. Soluble carbonate and hydroxide are dissolved in water to obtain a composite solution of carbonate and hydroxide. Ferroferric oxide powder is added to the composite solution of carbonate and hydroxide, and ethanol is added to obtain a dispersion solution by ultrasonic dispersion. Then, the composite solution of magnesium salt and manganese salt is added, and the resulting solution is aged, centrifuged, washed, dried, ground and sieved, and calcined at 250-550°C to obtain the magnetic magnesium-manganese layered double metal oxide composite material. The present composite material has strong magnetism for Cd removal, and has the characteristics of high adsorption efficiency, fast adsorption speed and stability. The material may not only efficiently fix Cd, but also may use a magnet to separate and recycle materials.
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Inventors:
WU PINGXIAO (CN)
CHEN MEIQING (CN)
DANG ZHI (CN)
ZHU NENGWU (CN)
CHEN MEIQING (CN)
DANG ZHI (CN)
ZHU NENGWU (CN)
Application Number:
PCT/CN2019/113145
Publication Date:
May 14, 2020
Filing Date:
October 25, 2019
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
B01J20/06; B01J20/28; B01J20/30; C02F1/28; C02F101/20
Foreign References:
CN109513419A | 2019-03-26 | |||
CN105854796A | 2016-08-17 | |||
CN101422719A | 2009-05-06 | |||
CN101927165A | 2010-12-29 | |||
CN108514880A | 2018-09-11 | |||
CN102553660A | 2012-07-11 | |||
CN108704610A | 2018-10-26 | |||
CN104261547A | 2015-01-07 | |||
JPH05251756A | 1993-09-28 |
Attorney, Agent or Firm:
GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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