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    Production of pure-n-dimethylacylamides
    2.
    发明授权
    Production of pure-n-dimethylacylamides 失效
    纯N-二甲基酰胺的生产

    公开(公告)号：US3627830A

    公开(公告)日：1971-12-14

    申请号：US3627830D

    申请日：1969-02-03

    Applicant: BASF AG

    Inventor： KERBER HORST ,  HOHENSCHUTZ HEINZ ,  RAUCH KONRAD

    IPC: C08K5/20 ,  C07C103/00

    CPC classification number: C08K5/20

    Abstract: Production of pure N-dimethylacylamides having from two to four carbon atoms in the acyl radical by reaction of an excess of dimethylamine with an aliphatic carboxylic acid having two to four carbon atoms at elevated temperature and distillation of the N-dimethylacylamide formed, the distillation being carried out continuously in a column. Dimethylamine and the carboxylic acid in the molar ratio from 1.1:1 to 5:1 are introduced at from 80* to 220* C. and from 0.1 to 2 atmospheres in the absence of any catalyst into a mixture of N-dimethylacylamide and its carboxylic acid, the carboxylic acid content of the mixture corresponding at least to the amount of carboxylic acid present in the azeotropic mixture of the N-dimethylacylamide and its carboxylic acid. Ndimethylacylamides are used as solvents for polymers.

    Nickel catalyst
    6.
    发明专利
    Nickel catalyst 未知

    公开(公告)号：GB1085171A

    公开(公告)日：1967-09-27

    申请号：GB265

    申请日：1965-01-01

    Applicant: BASF AG

    Inventor： LANDGRAF ALFRED ,  MOELL HANS ,  KERBER HORST ,  WODTCKE FRIEDRICH ,  EBENHOECH FRANZ LUDWIG ,  HUPPER LEOPOLD

    IPC: B01J23/883 ,  C07C45/50

    Abstract: Ni-containing sodium molybdate/SiO2 catalysts are used to hydrogenate sulphur-containing mixtures of aldehydes, ketenes and esters such as are obtained in oxo systheses from olefins, CO and H2. In example 3 a feed stream containing inter alia n-butyhaladehyde, isobutyraldehyde, butyl formates and butyene esters is hydrogenated, the aldehydes and substantial portions of the esters being converted to the corresponding butanols.ALSO:In a method of making Ni-containing hydrogenation catalysts, an aqueous solution which is 0.5 to 3 molar in Si and having a ratio Na:Si of 0.7 to 7:1 and a Mo:Si ratio of 0.04 to 0.2:1 which has been prepared from water-glass and sodium molybdate has added to it while stirring such an amount of a 1 to 3 molar Mi salt solution that the amount of Mi added is from 10% by weight more or less equivalent to the amount of sodium contained in the solution and the resultant precipitate is separated from the solution, moulded and reduced in hydrogen at 300 to 500 DEG C. Additionally the catalyst may contain a small quantity of magnesium.

    Purification of methanol
    10.
    发明专利
    Purification of methanol 未知

    公开(公告)号：GB1106598A

    公开(公告)日：1968-03-20

    申请号：GB3391566

    申请日：1966-07-28

    Applicant: BASF AG

    Inventor： HAHL EDGAR ,  KERBER HORST

    IPC: C07C31/04

    Abstract: Purification of crude methanol contaminated by an iron carbonyl by treatment with molecular oxygen or with hydrogen peroxide in the presence of a substance having a large specific surface area the iron carbonyl being oxidized. Specified substances having a large specific surface area, preferably from 100 to 1000 square metre/gram, include active carbon, optionally activated with a precious metal such as silver or palladium, and silica gel, diatomaceous earth, an alumina or a bleaching earth. Preferred amounts of molecular oxygen or hydrogen peroxide are specified. The process may be effected at a temperature in the range 0-200 DEG C. under atmospheric or superatmospheric pressure optionally in the presence of specified substances which form complexes with iron.

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