21-08-2014 дата публикации
Номер: US20140235891A1
Автор:
Li Fangwei,
Li Wenpeng,
Li Yeman,
LI Yinghui,
Liu Fujian,
MENG Xiangju,
Pei Haotian,
Song Guoquan,
XIAO FENGSHOU,
Xiao Haicheng,
Xu Kezhong,
Xu Xianming,
Yu Xiangmin,
Zeng Qunying,
ZHANG Wei,
Zhang Zhixiang
The invention relates to an application of organic framework porous solid acid. A catalyst for catalytic esterification and acylation reaction is prepared by the steps of adding a divinyl benzene monomer into a solvent prepared by mixing azobisisobutyronitrile, tetrahydrofuran and water, performing hydrothermal treatment at the normal temperature under the constant pressure, and volatilizing the solvent at the room temperature to obtain polydivinylbenzene; grinding the polydivinylbenzene into 200-mesh powder and performing degassing treatment under the nitrogen condition; adding polydivinylbenzene blocks into 1,1′,2-methyl chloroform to explode and crack into small blocks, wherein the small blocks swell; evenly mixing 1,1′,2-methyl chloroform and concentrated sulfuric acid, adding silver sulfate serving as a catalyst, adding processed polydivinylbenzene, performing sulfonation, filtering and washing with dioxane and water till it is neutral, performing drying, using dilute sulphuric acid to activate, performing washing till the it is neutral and performing drying. The catalyst is used for the catalytic esterification and the acylation reaction and has high catalytic activity and conversion rate. 1. An application of organic framework porous solid acid , wherein said application is used as catalyst of catalytic esterification and acylation reaction , the synthetic method of said catalyst comprises:(1) divinyl benzene monomer is added into a mixture solvent of azobisisobutyronitrile, tetrahydrofuran and water, which is stirred for more than 3 hours at ambient temperature and pressure followed by hydrothermal treatment for 1-2 days, then the obtained product is taken out, opened and volatilized at the room temperature to obtain polydivinylbenzene having mesoporous structure;(2) polydivinylbenzene is ground into 200-mesh powder and degassed for 10 h under nitrogen condition;(3) polydivinylbenzene blocks are added into 1,1′,2-methyl chloroform, then the ...
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