Title:
METHOD FOR PREPARING SOLID ACID CATALYST WITH HIGH ACID CONTENT
Document Type and Number:
WIPO Patent Application WO/2016/192175
Kind Code:
A1
Abstract:
Provided is a method for preparing a solid acid catalyst with a high acid content. The method utilizes plant waste as a raw material, and comprises: first drying the plant waste, and then grinding and sieving the dried plant waste; adding, while stirring, the plant waste to a concentrated sulfuric acid to evenly mix the same; performing dehydration and carbonization at a room temperature for 10-24 h, and then performing sulfonation at a temperature of 100-200ºC for 15-30 h to obtain a solid mixture; rinsing the mixture with hot water to remove residual liquid acid from the solid mixture; and filtering, drying and grinding the rinsed solid to obtain a solid acid catalyst. The solid acid has an acidity of 3.5-5.0 mmol/g, and the solid acid catalyst is called GDUT-1.
Inventors:
WANG LUOSHENG (CN)
GUO WANPING (CN)
YU LIN (CN)
GUO WANPING (CN)
YU LIN (CN)
Application Number:
PCT/CN2015/083776
Publication Date:
December 08, 2016
Filing Date:
July 10, 2015
Export Citation:
Assignee:
GUANGZHOU AOYIN BIOTECH CO LTD (CN)
International Classes:
B01J27/053; C01B31/02
Foreign References:
| CN101400443A | 2009-04-01 | |||
| CN101314138A | 2008-12-03 | |||
| CN103157512A | 2013-06-19 | |||
| CN101890364A | 2010-11-24 |
Other References:
ZHANG, SHI;, HYDROLYSIS TECHNOLOGY OF PLANT MATERIALS, 30 June 1994 (1994-06-30)
Attorney, Agent or Firm:
DONG GUAN HUA NAN PATENT & TRADEMARK OFFICE CO., LTD (CN)
东莞市华南专利商标事务所有限公司 (CN)
东莞市华南专利商标事务所有限公司 (CN)
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