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    SUPPORTED ORGANOTIN CATALYST AND PREPARATION METHOD FOR SUCROSE-6-CARBOXYLATE
    3.
    发明公开
    SUPPORTED ORGANOTIN CATALYST AND PREPARATION METHOD FOR SUCROSE-6-CARBOXYLATE 审中-实审

    公开(公告)号：EP4338835A1

    公开(公告)日：2024-03-20

    申请号：EP21942417.3

    申请日：2021-05-28

    申请人： Anhui Jinhe Industrial Co., Ltd.

    发明人： ZHANG, Zhengsong ,  YANG, Zhijian ,  CHEN, Chaohui ,  SHEN, Dongdong

    IPC分类号： B01J31/12 ,  C07H1/00 ,  C07H13/04 ,  C07F7/22

    摘要： Described herein is 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.

    ALDEHYDE PREPARATION METHOD AND ALDEHYDE PREPARATION APPARATUS
    8.
    发明公开
    ALDEHYDE PREPARATION METHOD AND ALDEHYDE PREPARATION APPARATUS 审中-公开

    公开(公告)号：EP4008711A1

    公开(公告)日：2022-06-08

    申请号：EP21859348.1

    申请日：2021-08-26

    申请人： LG CHEM, LTD.

    发明人： YANG, Jusang ,  SHIN, Sangjun ,  EOM, Sungshik ,  KIM, Tae Yun ,  KO, Dong Hyun ,  YANG, Sungpil

    IPC分类号： C07C45/50 ,  C07C47/02 ,  B01J31/18 ,  B01J31/12

    摘要： A method for preparing an aldehyde according to one embodiment of the present application comprises forming a reaction product comprising an aldehyde by reacting an olefin-based compound with a synthetic gas in a hydroformylation reactor under a catalyst for a hydroformylation reaction; introducing the reaction product comprising an aldehyde to a vaporizer; separating low-boiling point components of the reaction product to an upper part of a vaporizer catch pot comprised in the vaporizer, and separating high-boiling point components of the reaction product to a lower part of the vaporizer catch pot; and recirculating at least a portion of the low-boiling point components separated to an upper part of the vaporizer catch pot to the vaporizer catch pot.