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    APPARATUS AND PROCESS FOR THE PRODUCTION OF FORMALDEHYDE
    7.
    发明公开
    APPARATUS AND PROCESS FOR THE PRODUCTION OF FORMALDEHYDE 审中-公开

    公开(公告)号：EP3374074A1

    公开(公告)日：2018-09-19

    申请号：EP16797609.1

    申请日：2016-11-10

    申请人： Johnson Matthey Public Limited Company

    发明人： HOLMBERG, Johan Björn Mattias ,  MAGNUSSON, Andreas Erik Johan

    IPC分类号： B01J8/06 ,  C07C47/04 ,  B01J8/04

    CPC分类号： B01J8/067 ,  B01J8/0496 ,  B01J2208/00212 ,  C07C45/002 ,  C07C47/04

    摘要： An apparatus for the production of formaldehyde is disclosed. The apparatus comprises a cooled tubular reactor section (8, 108, 208, 308, 408, 508) having a first inlet, a first outlet and a plurality of tubes each having a first end in fluid communication with the first inlet and a second end in fluid communication with the first outlet. The plurality of tubes contain a first catalyst for the production of formaldehyde by oxidative dehydrogenation. The apparatus is characterised in that the apparatus further comprises a pre-reactor section (7, 107, 207, 307, 407, 507). The pre-reactor section (7, 107, 207, 307, 407, 507) has an inlet. The pre-reactor section (7, 107, 207, 307, 407, 507) has an outlet in fluid communication with the first inlet of the cooled tubular reactor section (8, 108, 208, 308, 408, 508). The pre-reactor section (7, 107, 207, 307, 407, 507) is configured to contain, in use, an adiabatic catalyst bed. The adiabatic catalyst bed comprises a second catalyst for the production of formaldehyde by catalytic oxidative dehydrogenation.

    PROCESS FOR THE PREPARATION OF SUCCINIC ACID ESTER
    10.
    发明授权
    PROCESS FOR THE PREPARATION OF SUCCINIC ACID ESTER 有权

    公开(公告)号：EP2958885B1

    公开(公告)日：2018-07-04

    申请号：EP14809676.1

    申请日：2014-12-02

    申请人： Johnson Matthey Davy Technologies Limited

    发明人： SMIDT, Martin Lucas ,  CAMPBELL, Ian ,  REED, Graham ,  GORDON, Paul ,  FERGUSON, Christopher

    IPC分类号： C07C67/08

    CPC分类号： C07C67/08 ,  B01D3/009 ,  B01D3/143 ,  B01D17/0208 ,  C07C67/54 ,  C07C69/40

    摘要： A process for the production of dialkyl succinate from a bio-succinic acid feedstock commencing by feeding bio-succinic acid to a reaction distillation column to enable esterification of the succinic acid. The feedstock is passed co-currently with upflowing alkanol such that an esterification reaction occurs. An overhead vapor stream is removed from the reaction distillation column comprising di-ester, alkanol, water of esterification and organic components. The vapor stream is sent to an alkanol separation column where alkanol is separated from the water of esterification and organic components. A side draw is removed from the alkanol separation column comprising partially immiscible organic and aqueous phases. The side draw is passed to a phase separation apparatus where the partially immiscible organic and aqueous phases are separated. The organic phase is passed to a column where the dialkyl succinate is recovered from residual water and other organic components.