Title:
SUPPORTED ORGANOTIN CATALYST AND PREPARATION METHOD FOR SUCROSE-6-CARBOXYLATE
Document Type and Number:
WIPO Patent Application WO/2022/246846
Kind Code:
A1
Abstract:
Disclosed are a supported organotin catalyst and a preparation method for a sucrose-6-carboxylate. The supported organotin catalyst is prepared by coupling an organotin functional group to an inorganic carrier. The supported organotin catalyst of the present application can be used for catalyzing the generation of a sucrose-6-carboxylate, and after reaction, the supported organotin catalyst can be directly filtered and recovered only by adding a small amount of water to quench an acylating agent, so that the subsequent dehydration process is simpler and easier, and the supported organotin catalyst is thus very economical in terms of manpower, equipment and energy. Moreover, according to the present application, the organotin functional group is supported on the inorganic carrier by means of a covalent bond of a coupling atom, so that the organotin functional group is hardly lost after filtration and is basically completed recovered, and therefore, there is not only no need to add a new supported organotin catalyst after each production, but also no bad influence on the subsequent chlorination reaction due to the product being entrained with the supported organotin catalyst.
Inventors:
ZHANG ZHENGSONG (CN)
YANG ZHIJIAN (CN)
CHEN CHAOHUI (CN)
SHEN DONGDONG (CN)
YANG ZHIJIAN (CN)
CHEN CHAOHUI (CN)
SHEN DONGDONG (CN)
Application Number:
PCT/CN2021/096969
Publication Date:
December 01, 2022
Filing Date:
May 28, 2021
Export Citation:
Assignee:
ANHUI JINHE IND CO LTD (CN)
International Classes:
B01J31/12; C07H1/00; C07H13/04
Foreign References:
| CN113195099A | 2021-07-30 | |||
| CN107308984A | 2017-11-03 | |||
| CN104098617A | 2014-10-15 | |||
| CN1215731A | 1999-05-05 | |||
| CN1714935A | 2006-01-04 |
Attorney, Agent or Firm:
BEIJING LONGAN LAW FIRM (CN)
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