61.
    发明专利
    未知

    公开(公告)号:FR1442635A

    公开(公告)日:1966-06-17

    申请号:FR19426

    申请日:1965-06-03

    Applicant: BASF AG

    Inventor: PLATZ ROLF

    63.
    发明专利
    未知

    公开(公告)号:FR1396962A

    公开(公告)日:1965-04-23

    申请号:FR976625

    申请日:1964-06-01

    Applicant: BASF AG

    Abstract: In a process for the preparation of acrylonitrile and methacrylonitrile by the oxidation of propylene or isobutylene with oxygen or gases containing oxygen in the presence of ammonia at an elevated temperature, a tin salt of a boromolybdate heteropoly acid on a carrier is used as a catalyst. The weight ratio of stannic oxide to molybdenum oxide is from 10:1 to 1:10, and of boron oxide to molybdenum oxide is from 1:5 to 1:20. and the preferred carrier is silica gel. The catalyst may be prepared by impregnating the carrier with solutions of tin, boron and molybdenum salts, or by coprecipitation of silica gel and tin, boron, molybdate, followed by drying, and the use of a fluidized bed method is preferred.ALSO:Aminoxidation catalyst comprise tin salts of a boromolybdate heteropoly acid supported on a carrier. The weight ratio of stannic oxide to molybdenum oxide is from 10:1 to 1:10, and of boron oxide to molybdenum oxide is from 1:2 to 1:50 and silica gel is preferred as the carrier. The carrier may be impregnated with suitable solutions of tin, boron, molybdenum salts and dyed, silica-gel may be co-precipitated with tin boron molybdate, or the tin salt of boromolybdic acid may be applied in molten form preferably in the presence of a flux e.g. urea or oxalic acid. The particle size is determined by spraying, extrusion or by grinding. In examples of catalyst preparation, boric acid is added to ammonium molybdate solution followed by stannous chloride solution, the solution made alkaline with ammonia, and silica gel kneaded is followed by dying and annealing; ammonium molybdate and boric acid solution is stirred into silica sol and during heating and mixing an acetic acid solution of stannous oxide is flowed in, the mixture is evaporated and calcined.

    Production of aromatic nitriles
    64.
    发明专利

    公开(公告)号:GB972122A

    公开(公告)日:1964-10-07

    申请号:GB1965763

    申请日:1963-05-17

    Applicant: BASF AG

    Abstract: A process for the production of aromatic nitriles comprises contacting (a) an aromatic hydrocarbon selected from the group consisting of alkyl-substituted benzenes with 1-3 alkyl groups of 1-4 C atoms, alkyl substituted naphthalenes with 1-2 alkyl groups of 1-4 C atoms and alkyl substituted diphenyls with 1-2 alkyl groups of 1-4 C atoms, (b) oxygen, and (c) ammonia at a temperature of from 300 DEG -500 DEG C. and at a pressure of from 400 mm Hg to 2 atmospheres with a catalyst consisting substantially of a member selected from the group consisting of vanadium oxide and a mixture of vanadium oxide and chromium oxide, the catalyst being supported on an alumina carrier made up of at least one member of the group consisting of g -, d -, c -, K- and X-alumina. The reaction may be carried out for example by passing the gas mixture at the reaction temperature over the catalyst, then cooling the reaction gas and separating the nitriles by condensation, if desired by spraying in water. Several examples are given using xylene, toluene, diisopropylbenzene, 3,4-dimethyldiphenyl, 1 methyl naphthalene and mesitylene as starting materials.

    Production of fuel gas having high calorific value

    公开(公告)号:GB951518A

    公开(公告)日:1964-03-04

    申请号:GB563462

    申请日:1962-02-14

    Applicant: BASF AG

    Abstract: A process for producing high calorific value fuel gas comprises cracking liquid hydrocarbons with oxygen by the submerged-flame process and passing the product at an elevated temperature over a catalyst containing at least one element or compound of a Group VI or VIII metal. The gaseous product from the submerged flame process may be cooled before and after passing over the catalyst, and at normal or increased pressures, e.g. 8 atmospheres gauge. The temperature of the catalyst may be from 60 DEG to 400 DEG C. The catalyst may be supported on a carrier and may be a fixed or fluidized bed, and is exemplified by oxides and/or sulphides of chromium, molybdenum, tungsten, iron group metals such as nickel or cobalt, or platinum metals such as palladium. Mixtures of the oxides and/or sulphides of Group VI metals with Group VIII metals may also be used. Suitable carriers are aluminium oxide, aluminiferrous clays, alumina cements, pumice, or silica gel, and may be of 2-50 mm. grain size for the fixed bed, and 0.01 to 10 mm. for the fluidized bed. Specification 827,438 is referred to.

    Separation of isobutene from gases
    66.
    发明专利

    公开(公告)号:GB941894A

    公开(公告)日:1963-11-13

    申请号:GB1924161

    申请日:1961-05-29

    Applicant: BASF AG

    Abstract: Isobutene is separated from gases containing it by reaction with a solution comprising a C1-C4 aliphatic carboxylic acid and an inorganic acid or boron trifluoride catalyst and recovering isobutene from the ester formed by adding water and heating. Suitable carboxylic acids are formic, acetic, propionic and butyric containing not more than 5% by weight of water and to which is added 0.1-10% by weight of boron trifluoride, perchloric acid or sulphuric acid. Absorption is effected at 0-40 DEG C. Desorption is achieved by adding 0.3-30% by weight of water to the solution and heating to 80-140 DEG C. In a continuous operation, the gas is supplied through pipe 2 and is contacted with absorption solution from pipe 3 in column 1. The solution flows through column 7 and condenser 8 to vessel 9 where water is added by pipe 11 and the solution is heated. Isobutene is removed by pipe 10 and also flows up through column 7 in counter-current to the solution, thereby stripping out undesired materials. The desorbed solution flows to vessel 14 where an azeotrope, e.g. of propionic acid and water, is distilled off by pipe 15 and used as the source of water for pipe 11 leaving acid which is cooled and recycled to pipe 3.

    Production of phenol
    67.
    发明专利

    公开(公告)号:GB939018A

    公开(公告)日:1963-10-09

    申请号:GB3311362

    申请日:1962-08-29

    Applicant: BASF AG

    Inventor: PLATZ ROLF

    Abstract: Phenol is produced by heating benzoic acid in the presence of cupric ions, steam and gas containing 0.1-18% molecular oxygen (by volume) at 180-250 DEG C. Specification 762,738 is referred to.

    68.
    发明专利
    未知

    公开(公告)号:FR1332999A

    公开(公告)日:1963-07-19

    申请号:FR908445

    申请日:1962-09-03

    Applicant: BASF AG

    Inventor: PLATZ ROLF

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