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Title:
DIFUNCTIONAL COMPOSITE FILTER MEDIUM FIBER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/233159
Kind Code:
A1
Abstract:
Disclosed are a preparation method for a difunctional composite filter medium fiber and a composite filter medium fiber prepared therefrom. The preparation method comprises: (1) preparing alkaline solution A with a pH of 8-12, and dissolving a manganese salt, a cerium salt and a zirconium salt in water to prepare salt solution B; (2) immersing a fiber in the alkaline solution A for wetting for 15-70 min and then subjecting same to ultrasound-assisted wetting for a period of time, draining the wetted fiber and then immersing same in the salt solution B for impregnation and deposition for a period of time; or immersing a fiber in the salt solution B for wetting and then subjecting same to ultrasound-assisted wetting for a period of time, draining the wetted fiber and then immersing same in the alkaline solution A for impregnation and deposition for 15-70 min; and (3) taking out the fiber after impregnation and deposition and then ageing same, then subjecting same to a microwave thermal treatment, and finally subjecting same to an activation treatment, so as to obtain the difunctional composite filter medium fiber.

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Inventors:
WANG DONG (CN)
PENG YUE (CN)
HAN KUIHUA (CN)
LU CHUNMEI (CN)
NIU SHENGLI (CN)
ZHANG KANG (CN)
SI WENZHE (CN)
LI BING (CN)
GAN LINA (CN)
Application Number:
PCT/CN2017/106879
Publication Date:
December 27, 2018
Filing Date:
October 19, 2017
Export Citation:
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Assignee:
UNIV SHANDONG (CN)
International Classes:
B01D46/00; B01D39/14; B01D53/56; B01D53/86; B01D53/90; B01J31/38; B01J35/06; B01J37/02; B01J37/03; B01J37/08; B01J37/14; B01J37/34
Domestic Patent References:
WO1996014153A11996-05-17
Foreign References:
CN107261644A2017-10-20
CN107158799A2017-09-15
CN104941319A2015-09-30
CN106560245A2017-04-12
CN107497440A2017-12-22
CN101518718A2009-09-02
US20140196658A12014-07-17
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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