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    PROCESS FOR PREPARING AMINE SALTS OF ACID O,S-DIALKYLTHIOPHOSPHORIC ESTERS
    1.
    发明专利
    PROCESS FOR PREPARING AMINE SALTS OF ACID O,S-DIALKYLTHIOPHOSPHORIC ESTERS 未知

    公开(公告)号：DE2963073D1

    公开(公告)日：1982-07-29

    申请号：DE2963073

    申请日：1979-09-03

    Applicant: HOECHST AG

    Inventor： GROSSE JURGEN DR

    IPC: C07F9/17 ,  C07F9/165 ,  C07F9/65

    Abstract: The invention relates to an improved process for making amine salts of acid O,S-dialkylthiophosphoric acid esters of the general formula (I) (I) in which R1 stands for the ammonium ion of primary or secondary aliphatic, cycloaliphatic or aromatic amines or of a heterocyclic nitrogen base and R2 and R3 each stand for an alkyl group by subjecting an O,O,S-trialkyl-thiophosphate to partial dealkylation and forming the salt of the dealkylated product by treatment with an amine corresponding to the ammonium ion R1. In the improved process an O,O,S-trialkylthiophosphate of the general formula (II) (II) in which R2 and R3 have the meanings given above, is mixed with at least stoechiometric proportions of water and an amine corresponding to the ammonium ion R1, the resulting mixture is reacted, with agitation, over a period of about 3 to 8 hours at a temperature within the range 0 DEG to 120 DEG C., and the amine salt of the general formula (I) is separated from the reaction mixture.

    PROCESS FOR PREPARING PHOSPHONIC-ACID ESTER CHLORIDES
    2.
    发明专利
    PROCESS FOR PREPARING PHOSPHONIC-ACID ESTER CHLORIDES 未知

    公开(公告)号：DE3261272D1

    公开(公告)日：1985-01-03

    申请号：DE3261272

    申请日：1982-05-05

    Applicant: HOECHST AG

    Inventor： GROSSE JURGEN DR ,  PIEPER WERNER DR

    IPC: C07F9/42

    Abstract: The disclosure relates to a process for making phosphonic acid ester chlorides of the general formula (I) R-P(O) ClOR'(I) in which R stands for an alkyl group with 1 to 6 carbon atoms or an aryl group and R' stands for an alkyl group with 1 to 20 carbon atoms or an aryl group. More particularly, a compound of general formula (II) R-PCl2 (II) is reacted with a sulfuric acid monoester of general formula (III) R'-O-SO3H (III) R and R' in formulae (II) and (III) having the meanings given above; the reactants are used in about equimolar proportions and the reaction is effected at a temperature of from -20 DEG C. to 50 DEG C. After termination of the reaction, the phosphonic acid ester chloride is separated from the reaction mixture by subjecting this latter to distillation under vacuum.

    PROCESS FOR REACTING ALCOHOLS AND/OR PHENOLS WITH PHOSPHORUS PENTASULFIDE
    3.
    发明专利
    PROCESS FOR REACTING ALCOHOLS AND/OR PHENOLS WITH PHOSPHORUS PENTASULFIDE 未知

    公开(公告)号：DE3160145D1

    公开(公告)日：1983-05-11

    申请号：DE3160145

    申请日：1981-02-17

    Applicant: HOECHST AG

    Inventor： KRAUSE WERNER DR ,  GROSSE JURGEN DR ,  KLOSE WERNER DR

    IPC: C07F9/165 ,  B01J31/00 ,  B01J31/02 ,  C07B61/00 ,  C07F9/17 ,  C07F9/18

    Abstract: The invention relates to a process wherein an alcohol and/or phenol is reacted with phosphorus pentasulfide in the presence of a catalyst which is selected from (a) phosphonium salts of the general formula: I (b) ammonium salts of the general formula: II (c) phosphine oxides of the general formula: III (d) phosphine sulfides of the general formula: IV (e) phosphinic acid derivatives of the general formula: V In formulae I through V, the substituents R1, R2, R3 and R4 each stand for identical or different alkyl-, aryl-, alkaryl- or aralkyl- groups having from 1 to 22 carbon atoms. A stands for an inorganic or organic acid, and X and Y, respectively, stand for both oxygen and sulfur, and M stands for a monovalent metal or oxygen.

    4.
    发明专利
    未知

    公开(公告)号：ES2051039T3

    公开(公告)日：1994-06-01

    申请号：ES91102445

    申请日：1991-02-20

    Applicant: HOECHST AG

    Inventor： STAFFEL THOMAS DR ,  SCHIMMEL GUNTHER DR ,  BUHL HORST DR ,  GROSSE JURGEN DR

    IPC: C01B15/16 ,  C01B25/40 ,  C05B13/06

    Abstract: Plant produces water-insoluble linear ammonium polyphosphate from ammonium ortho-phosphate and phosphorus pentoxide in the presence of gaseous ammonia. The plant consists of a reactor contg. rotary mixing and comminution tooling and having a feed pipe for the solid starting materials, an ammonia inlet pipe, a gas outlet pipe and a reaction product discharge line. The novelty is that the discharge line is connected to a mixer unit and includes a delivery device controlled by the current consumption of the drive motor of the reactor.

    PROCESS FOR THE PREPARATION OF PHOSPHONIC-ACID ANHYDRIDES
    5.
    发明专利
    PROCESS FOR THE PREPARATION OF PHOSPHONIC-ACID ANHYDRIDES 未知

    公开(公告)号：DE3268338D1

    公开(公告)日：1986-02-13

    申请号：DE3268338

    申请日：1982-11-27

    Applicant: HOECHST AG

    Inventor： GROSSE JURGEN DR ,  PIEPER WERNER DR

    IPC: C07F9/38 ,  C07F9/40

    Abstract: The disclosure relates to a process for making phosphonic anhydrides of general formula (I) (RPO2)n.H2O (I) in which R stands for an alkyl or aryl radical having from 1 to 6 carbon atoms and n stands for a value between 2 and 20. To this end, the disclosure provides for a compound of general formula (II) (II) in which R has the meaning given above to be oxidized with concentrated sulfuric acid under inert gas and in the presence of a diluent at a temperature between 0 DEG and 100 DEG C., the compound of general formula (II) and sulfuric acid being used in a molar ratio of about 1:1.

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