METHOD FOR PREPARING AMIDOXIME FUNCTIONALIZED HOLLOW POROUS POLYMER MICROSPHERE BY USING CO2 AS EMULSION TEMPLATE

WIPO Patent Application WO/2021/093306

A1

The present invention relates to the technical field of adsorption and separation functional materials, and relates to a method for preparing an amidoxime functionalized hollow porous adsorbent by using CO2 as an emulsion template. The method comprises the following steps: first preparing silicon dioxide nanoparticles and MF-HP; adding the MF-HP and PEA to ethanol; passing through an ultrasonic and water bath reaction; washing using water, washing using ethanol, and drying to obtain MF-NH2-HP; adding same to a glutaraldehyde aqueous solution; after passing through a water bath, washing using water, washing using ethanol, and drying, obtaining MF-CHO-HP; then adding same and DAMN to an ethanol solution; passing through a water bath, washing using water, washing using ethanol, and drying to obtain MF-CN-HP; adding same and hydroxylamine hydrochloride to a mixed solution of water and ethanol; and after reacting, washing using water, washing using ethanol, and drying to obtain MF-AO-HPS. By grafting PEA, the present invention provides the possibility for subsequent modification of a large number of action sites as well as combines with a hollow porous structure, thus not only improving the adsorption capacity of adsorption U(VI), but also accelerating mass transfer kinetics.

BAI XUE (CN)
PAN JIANMING (CN)
LIU JINXIN (CN)

PCT/CN2020/092492

May 20, 2021

May 27, 2020

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UNIV JIANGSU (CN)

B01J20/26; B01J20/28; B01J20/30; C02F1/28; C02F103/08

CN110961085A	2020-04-07
CN105817213A	2016-08-03
EP2617760A1	2013-07-24
JP2006026588A	2006-02-02
CN108160058A	2018-06-15

NANJING IPZHI INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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