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    Method of separating acids from chemical reaction mixtures by means of non-polar amines
    13.
    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.

    Method of separating acids from chemical reaction mixtures by means of apolar amines
    17.
    发明专利
    Method of separating acids from chemical reaction mixtures by means of apolar amines 未知

    公开(公告)号：AU2006311130B2

    公开(公告)日：2012-04-05

    申请号：AU2006311130

    申请日：2006-09-15

    Applicant: BASF SE

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

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

    Abstract: The invention relates to a method of separating acids from reaction mixtures comprising at least one product of value which is of low water solubility, by means of at least one apolar amine as auxiliary base, said method comprising the following steps: a) reacting the auxiliary base with the acid to form a salt; b) reacting the salt formed in step a) with a further base which takes over the acid while releasing the auxiliary base; c) extracting the mixture obtained in step b) with water or an aqueous medium, the salt of the further base dissolving 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 forming at least one separate, non-aqueous phase; and d) removing, by distillation, the auxiliary base and/or at least part of any solvent present from the at least one non-aqueous phase obtained in step c), in the course of which two immiscible liquid phases may be formed. The invention further relates to a process for preparing thiophosphoramides, to the thiophosphoramides obtainable by this process, and to the use of these thiophosphoramides as an addition to urea-containing mineral and/or organic-mineral fertilizers.

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