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    Production of amines by the catalytic hydrogenation of nitriles
    21.
    发明专利
    Production of amines by the catalytic hydrogenation of nitriles 未知

    公开(公告)号：GB1143390A

    公开(公告)日：1969-02-19

    申请号：GB2716366

    申请日：1966-06-17

    Applicant: BASF AG

    Inventor： ADAM KARL ,  HAARER ERICH

    IPC: C07C209/48

    Abstract: 1,143,390. Preparing amines by the catalytic reduction of nitriles. BADISCHE ANILIN- & SODA-FABRIK A.G. 17 June, 1966 [19 June, 1965], No. 27163/66. Heading C2C. [Also in Division B1] Amines are prepared by hydrogenating nitriles at elevated temperature and atmospheric or superatmospheric pressure using catalysts containing 70-98% by weight of cobalt, 0À7-10% by weight of manganese and/or chromium; and pyro- or poly-acids in an amount of 0À01-10% by weight calculated as the acid or, in the case of metal acids, as the metal and optionally up to 3% by weight of other metallic activators. The catalyst employed is one which has been prepared by co-precipitating all the components from which the catalyst is derived from aqueous solutions of the metals and acids which are convertible into pyroacids or polyacids by adding caustic alkali, filtering off the precipitate, washing with water, drying, heating to obtain a mixture containing mainly oxides, heating again if desired, and prior to use, reducing with hydrogen at 200-400‹ C. to give a catalyst which is at least partly metallic.

    Production of hexamethylene oxide
    22.
    发明专利
    Production of hexamethylene oxide 未知

    公开(公告)号：GB1129279A

    公开(公告)日：1968-10-02

    申请号：GB5132866

    申请日：1966-11-16

    Applicant: BASF AG

    Inventor： ADAM KARL ,  HAARER ERICH

    IPC: C07D309/04 ,  C07D313/04

    Abstract: 1,129,279. Hexamethylene oxide. BADISCHE ANILIN- & SODA-FABRIK A.G. 16 Nov., 1966 [17 Nov., 1965], No. 51328/66. Heading C2C. Hexamethylene oxide is made by dehydrating hexane-diol-(1,6) at elevated temperatures in the presence of solid dehydration catalysts the reaction of the starting material being incomplete. The catalyst is preferably non- alkaline and porous. Numerous catalysts are specified including porous materials impregnated with dehydrating agents such as sulphuric acid. Advantageously conversions of 20-88% are effected. Reaction may be effected in an inert diluent especially water c.f. Specification 1,129,280 and 1,095,779. Advisably an inert gas, e.g. nitrogen or hydrogen, should be present. 2-Methyltetrahydropyran, polyhexamethylene oxide and hexenol-(1,6), the latter especially when catalysts containing vanadium are used, may be obtained as by-products. Examples are provided the catalysts used being (1) active aluminium oxide with 20% by weight aluminium chromate, (2) and (3) aluminium oxide containing 0À5% by weight of copper chromite, (4) aluminium oxide containing 20% by weight of aluminium chromate and 10% of boric acid, (5) aluminium phosphate containing 0À5% by weight of vanadium (as vanadium pentoxide) and (6) aluminium hydroxide containing 20% by weight of aluminium chromate and 0À5% of tungsten (as tungstic acid).

    Production of hexamethylene oxide
    30.
    发明专利
    Production of hexamethylene oxide 未知

    公开(公告)号：GB1129280A

    公开(公告)日：1968-10-02

    申请号：GB5132966

    申请日：1966-11-16

    Applicant: BASF AG

    Inventor： ADAM KARL ,  HAARER ERICH

    IPC: C07D309/04 ,  C07D313/04

    Abstract: 1,129,280. Hexamethylene oxide. BADISCHE ANILIN- & SODA-FABRIK A.G. 16 Nov., 1966 [17 Nov., 1965], No. 51329/66. Heading C2C. Hexamethylene oxide is obtained by dehydration of a reaction mixture containing hexanediol-(1,6) and 20-80% by weight of water based on the mixture at elevated temperature in the presence of solid dehydration catalysts. The catalyst used should be non- alkaline, e.g. aluminium oxide/boric acid, aluminium phosphate, aluminium phosphate/copper chromite and aluminium phosphate/chromium. The temperature range normally used is 160- 400‹ C. α-Methyltetrahydropyran is also obtained in some examples.

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