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    PREVENTION OF FOULING IN HYDROCARBON SEPARATION
    31.
    发明专利
    PREVENTION OF FOULING IN HYDROCARBON SEPARATION 未知

    公开(公告)号：CA963414A

    公开(公告)日：1975-02-25

    申请号：CA138259

    申请日：1972-03-27

    Applicant: BASF AG

    Inventor： RAFF PAUL ,  RITZERT GERHARD ,  WEITZ HANS-MARTIN

    IPC: C07C7/20 ,  C23F14/02

    Abstract: 1375506 Separating hydrocarbons in the presence of an anti-fouling agent BADISCHE ANILIN- & SODA-FABRIK AG 29 March 1972 [1 April 1971] 14701/72 Heading C5E In the separation of hydrocarbon mixtures containing unsaturated hydrocarbons using a selective solvent at elevated temperature fouling is inhibited by a N-substituted N nitrosohydroxylamine RN(NO)OH in which R is an aliphatic, cycloaliphatic, or araliphatic hydrocarbon radical or an inertly substituted derivative thereof, and/or a salt thereof. The salt may be with an ammonium, organo-ammonium, metal or complex metal ligand cation, numerous metals being specified. The separation process may be the recovery of (i) acetylene from combustion mixtures; (ii) butadiene from C 4 hydrocarbon mixtures; (iii) isoprene and/or cyclopentadiene from C 5 mixtures; (iv) butenes from C 4 mixtures; or (v) aromatics from mixtures, in each case using a selective solvent, and preferably at above 50‹ C. The solvent may be dimethylformamide, dimethylacetamide, furfurol, acetonitrile or N-methylpyrrolidone, preferably containing 5-15% by wt. of water. The anti-fouling agent is used in an amount from 1 p.p.m. to 10% by wt. relative to the solvent, optionally in conjunction with a known inhibitor, e.g. t-butylpyrocatechol, hydroquinone, a mercaptan, phenothiazine, #- naphthylamine, a phosphorous acid ester, methylene blue, an aldehyde, or sodium nitrite. The solvent may also include a pH buffer. In examples, Ce, Ca, K, NH 4 and Al salts of N-nitroso-N-cyclohexylhydroxylamine, and the Na salts of the n-octyl, cyclododecyl, and cyclooctyl derivatives are used.

    Dehydrogenation of cycloalkanols
    32.
    发明专利
    Dehydrogenation of cycloalkanols 未知

    公开(公告)号：GB1145476A

    公开(公告)日：1969-03-12

    申请号：GB2837166

    申请日：1966-06-24

    Applicant: BASF AG

    Inventor： RAFF PAUL ,  PEINE HANS GEORG

    IPC: C07C45/00

    Abstract: 1,145,476. Dehydrogenation of cycloalkanols. BADISCHE ANILIN- & SODA-FABRIK A.G. 24 June, 1966 [26 June, 1965], No. 28371/66. Heading C2C. Cycloalkanones having at least 8 carbon atoms in the ring are prepared by dehydrogenating the corresponding cycloalkanol, or mixtures containing cycloalkanols and cycloalkanones obtained by oxidation of a cycloalkane, in the presence of metallic cobalt as the catalyst. The process is preferably carried out in the liquid phase at temperatures between 190‹ and 230‹ C. The catalyst may be supported on, for example, alumina or silica gel, and may contain up to 10% by weight based on the metallic cobalt of an activator, e.g. palladium, zinc, lead, copper, chromium, boric acid or, preferably, manganese or phosphoric acid.

    Production of tetrahydrodicyclopentadienylene diamine
    33.
    发明专利
    Production of tetrahydrodicyclopentadienylene diamine 未知

    公开(公告)号：GB1081355A

    公开(公告)日：1967-08-31

    申请号：GB5151964

    申请日：1965-12-18

    Applicant: BASF AG

    Inventor： RAFF PAUL ,  SCHUSTER LUDWIG

    IPC: C08G18/32 ,  C08G59/50 ,  C08G69/26

    Abstract: Tetrahydrodicyclopentadienylene diamine is prepared by reacting dicyclopentadiene with hydrocyanic acid and sulphuric acid in two stages, the first stage being carried out at - 5 DEG to + 20 DEG C. using 1 to 3 moles of sulphuric acid, while the second stage is carried out at a temperature of 0 DEG to 30 DEG C., such an amount of sulphuric acid being added that the total amount of sulphuric acid used is from 3 to 6 moles per mole of dicyclopentadiene, but at least one mole more than in the first stage, the reaction mixture then being hydrolysed and the diamine product being recovered by conventional methods. The whole of the hydrocyanic acid may be present in the first stage. Both the temperature and the strength of the sulphuric acid in the first stage are preferably lower than those in the second stage.

    39.
    发明专利
    未知

    公开(公告)号：FI56473C

    公开(公告)日：1980-02-11

    申请号：FI750486

    申请日：1975-02-21

    Applicant: BASF AG

    Inventor： POMMER ERNST-HEINRICH ,  REUTHER WOLFGANG ,  RAFF PAUL ,  GOETTSCHE REIMER

    IPC: A01N33/24 ,  A01N51/00 ,  B27K3/36 ,  B27K3/50 ,  A01N9/20

    Abstract: 1493207 N-Nitroso-N-cyclohexyl-hydroxylamine complexes BASF AG 5 March 1975 [6 March 1974] 9114/75 Heading C2C The invention comprises complexes of a water-insoluble metal salt of N-nitroso-N- cyclohexylhydroxylamine and an amine compound. They may be prepared by reacting a water-soluble salt of N-nitroso-N-cyclohexylhydroxylamine with a complex of an amine and a salt of a metal which forms a water-insoluble salt with N-nitroso-N-cyclohexylhydroxylamine or with a mixture of the amine and the metal preferably as a salt thereof. The metal is preferably cobalt, nickel, copper, zinc or cadmium. The compounds of the invention may be used as fungicides.

    40.
    发明专利
    未知

    公开(公告)号：FI56473B

    公开(公告)日：1979-10-31

    申请号：FI750486

    申请日：1975-02-21

    Applicant: BASF AG

    Inventor： POMMER ERNST-HEINRICH ,  REUTHER WOLFGANG ,  RAFF PAUL ,  GOETTSCHE REIMER

    IPC: A01N33/24 ,  A01N51/00 ,  B27K3/36 ,  B27K3/50 ,  A01N9/20

    Abstract: 1493207 N-Nitroso-N-cyclohexyl-hydroxylamine complexes BASF AG 5 March 1975 [6 March 1974] 9114/75 Heading C2C The invention comprises complexes of a water-insoluble metal salt of N-nitroso-N- cyclohexylhydroxylamine and an amine compound. They may be prepared by reacting a water-soluble salt of N-nitroso-N-cyclohexylhydroxylamine with a complex of an amine and a salt of a metal which forms a water-insoluble salt with N-nitroso-N-cyclohexylhydroxylamine or with a mixture of the amine and the metal preferably as a salt thereof. The metal is preferably cobalt, nickel, copper, zinc or cadmium. The compounds of the invention may be used as fungicides.

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