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    Method of separating acids from chemical reaction mixtures by means of non-polar amines
    77.
    发明专利
    Method of separating acids from chemical reaction mixtures by means of non-polar amines 未知

    公开(公告)号：NZ567995A

    公开(公告)日：2010-04-30

    申请号：NZ56799506

    申请日：2006-09-15

    Applicant: BASF SE

    Inventor： HUTTENLOCH OLIVER ,  DECK PATRICK ,  GANZ HOLGER ,  MAUSS MICHAEL ,  KORNIG WOLFGANG ,  BOCK MICHAEL

    IPC: C07F9/22 ,  C05G3/90 ,  C07B63/00

    Abstract: Disclosed is a process for the removal of acids from reaction mixtures, comprising at least one product of value which is sparingly soluble in water, by means of at least one unpolar amine as auxiliary base that is not miscible with the product of value, comprising the following steps: a) reacting the auxiliary base with the acid with formation of a salt; b) reacting the salt formed in a) with a further base which accepts the acid with liberation of the auxiliary base and combines with the acid to be accepted from the auxiliary base to form a salt which is very readily soluble in water; c) extraction of the mixture obtained in step b) with water or an aqueous medium, where the salt of the further base dissolves in the aqueous phase and the product of value, or the solution of the product of value, in a suitable solvent and the auxiliary base form at least one separate non-aqueous phase; and d) removal by distillation of at least part of any solvent present from the at least one non-aqueous phase obtained in step c), to form two non-miscible liquid phases.

    METODO PARA LA PRODUCCION DE ISOCIANATOS.
    78.
    发明专利
    METODO PARA LA PRODUCCION DE ISOCIANATOS. 未知

    公开(公告)号：MX2010001396A

    公开(公告)日：2010-03-01

    申请号：MX2010001396

    申请日：2008-08-27

    Applicant: BASF SE

    Inventor： RUMPF BERND ,  FIENE MARTIN ,  STROEFER ECKHARD ,  BOCK MICHAEL

    IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14

    Abstract: La presente invención se refiere a un método para la producción de isocianatos, dicho método comprende los pasos siguientes: a) aminas reaccionan con fósgeno; b) cloruro de hidrógeno, exceso de fósgeno, y, en caso necesario, el solvente se separan de la mezcla de la reacción; c) la mezcla líquida del paso b) es separada en una fase líquida y en una fase gaseosa; d) la fase gaseosa del paso c) es procesada en el poliisocianato.

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