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    Process for preparing ethyleneamine compounds
    1.
    发明授权
    Process for preparing ethyleneamine compounds 有权

    公开(公告)号：US11072686B2

    公开(公告)日：2021-07-27

    申请号：US16638397

    申请日：2018-08-07

    申请人： NOURYON CHEMICALS INTERNATIONAL B.V.

    发明人： Rens Veneman ,  Antoon Jacob Berend Ten Kate ,  Michiel Jozef Thomas Raaijmakers ,  Slavisa Jovic ,  Rolf Krister Edvinsson ,  Eike Nicolas Kantzer ,  Karl Fredrik Lake ,  Ina Ehlers ,  Hendrik Van Dam

    IPC分类号： C07C209/68 ,  C08G73/02 ,  C07C213/08

    摘要： An integrated process for manufacturing polyethyleneamine compounds selected from the group of polyethyleneamines and hydroxyethylethyleneamines is provided. The process includes in an adduction step, providing a CO2 adduct of a starting compound comprising a —NH—CH2—CH2—NH— moiety or a —NH—CH2—CH2—OH moiety, or HO—CH2—CH2—OH, in a reaction step reacting a hydroxy-functional compound selected from the group of ethanolamines and dihydroxyethane with an amine-functional compound, wherein at least part of the total of hydroxy-functional compounds and amine-functional compounds is provided in the form of a CO2 adduct, to form CO2 adduct of a product polyethyleneamine compound, in an elimination step converting CO2 adduct of product polyethyleneamine compound to the corresponding product polyethylene amine compound, wherein a fraction comprising a recycle compound comprising a —NH—CH2—CH2—NH— moiety or a —NH—CH2—CH2—OH moiety, or HO—CH2—CH2—OH, or CO2 adducts thereof, is provided from the end of the reaction step or the elimination step to the adduction step or to the reaction step, wherein the recycle compound has per molecule on average fewer of the total of —NH—CH2—CH2—NH— moieties and —NH—CH2—CH2—OH moieties than the product polyethyleneamine compound.