13.
    发明专利
    未知

    公开(公告)号:SE7700534L

    公开(公告)日:1977-07-23

    申请号:SE7700534

    申请日:1977-01-19

    Applicant: HOECHST AG

    Inventor: KLOSE W

    Abstract: A product consisting essentially of an acid orthophosphoric acid ester salt and containing at most about 1 weight % of water is made. The ester group R contains 1 to 50 carbon atoms, and the salt-forming cation M is a mono- or bivalent metal ion or an ammonium ion. To make the product, molar proportions of P2O5 and of a compound of the general formulae M2O, M2CO3, MO or MCO3 are reacted at about 0 DEG to 150 DEG C, with thorough agitation, with 2/m mol of an at least partially liquid or molten organic hydroxyl compound of the general formula R(OH)m, in which formulae the substituents M and R have the meanings given above and m is a number of 1 to 4. The reaction is terminated and the reaction product is cooled.

    16.
    发明专利
    未知

    公开(公告)号:SE422780B

    公开(公告)日:1982-03-29

    申请号:SE7711728

    申请日:1977-10-18

    Applicant: HOECHST AG

    Abstract: STABILIZED RED PHOSPHORUS AND PROCESS FOR MAKING IT Production of stabilized pulverulent red phosphorus. The phosphorus so stabilized comprises a homogeneous blend of red phosphorus particles with a size of at most about 2 mm and a metal compound of the second or third group of the Periodic System as an oxidation stabilizer, wherein the metal compound is the aluminum, calcium or zinc salt of a phosphinic acid of the general formula in which R1 and R2 each stand for an alkyl, cycloalkyl, aryl or aralkyl group having 1 to 20 carbon atoms, the metal compound being present in the homogeneous blend in a proportion of about 0.5 to 5 weight %.

    17.
    发明专利
    未知

    公开(公告)号:DK126281A

    公开(公告)日:1981-09-23

    申请号:DK126281

    申请日:1981-03-20

    Applicant: HOECHST AG

    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.

    A PROCESS FOR PREPARING STABILIZED RED PHOPHORUS

    公开(公告)号:IN146212B

    公开(公告)日:1979-03-24

    申请号:IN834CA1977

    申请日:1977-06-03

    Applicant: HOECHST AG

    Abstract: 1519929 Red phosphorus HOECHST AG 27 May 1977 [17 July 1976] 22500/77 Heading C1A Stabilized pulverulent red phosphorus comprises a homogeneous blend of red phosphorus particles with a size of at most about 2mm and as an oxidation stabilizer a metal compound of the second or third group of the Periodic System, the metal compound being the aluminium, magnesium, calcium or zinc salt of an alkyl-, cycloalkyl-, aryl- or aralkyl-phosphonic acid having 1 to 20 carbon atoms, the metal compound being present in the homogeneous blend in a proportion of 0À5 to 5 weight per cent. Red phosphorus particles may-be intimately blended with 0À5 to 5 weight per cent, based on red phosphorus, of an alkyl-, cycloalkyl-, aryl- or aralkyl-phosphonic acid having 1 to 20 carbon atoms; the blend suspended in water and the suspension heated to 60 to 95‹ C.; the suspension gradually admixed with at least stoichiometric proportions of an aqueous solution of a water-soluble aluminium, magnesium, calcium or zinc salt to cause precipitation of the respective phosphoric acid salt from the aqueous suspension at a pH of 3À0 to 6À0 and preferably at a temperature of from 80 to 90‹ C.; the resulting mixture filtered, and the filter residue dried at elevated temperature, suitably at 80 to 130‹ C., and if desired, under reduced pressure. Preferred water-soluble salts are Al 2 (SO 4 ) 3 .18H 2 O, Ca(NO 3 ) 2 .4H 2 O, ZnSO 4 .7H 2 O and MgSO 4 .7H 2 O, which may be used in the form of 5 to 20 weight per cent aqueous solutions. The aluminium salt is suitably precipitated at pH 3À0 to 3À5 and the salts of the other metals at pH 5À0 to 6À0.

    19.
    发明专利
    未知

    公开(公告)号:SE428927B

    公开(公告)日:1983-08-01

    申请号:SE7700534

    申请日:1977-01-19

    Applicant: HOECHST AG

    Inventor: KLOSE W

    Abstract: A product consisting essentially of an acid orthophosphoric acid ester salt and containing at most about 1 weight % of water is made. The ester group R contains 1 to 50 carbon atoms, and the salt-forming cation M is a mono- or bivalent metal ion or an ammonium ion. To make the product, molar proportions of P2O5 and of a compound of the general formulae M2O, M2CO3, MO or MCO3 are reacted at about 0 DEG to 150 DEG C, with thorough agitation, with 2/m mol of an at least partially liquid or molten organic hydroxyl compound of the general formula R(OH)m, in which formulae the substituents M and R have the meanings given above and m is a number of 1 to 4. The reaction is terminated and the reaction product is cooled.

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