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    132.
    发明专利
    未知

    公开(公告)号：DE1906051A1

    公开(公告)日：1970-08-27

    申请号：DE1906051

    申请日：1969-02-07

    Applicant: BASF AG

    Inventor： NAGEL OTTO ,  PLATZ ROLF ,  FUCHS WERNER

    IPC: B01J10/00 ,  B01J31/00 ,  C07B61/00 ,  C07C27/00 ,  C07C29/42 ,  C07C33/04 ,  C07C33/046 ,  C07C33/28 ,  C07C67/00

    Abstract: Production of alkynols and/or alkynediols by reaction of acetylene with aldehydes in a liquid reaction medium in the presence of a heavy metal acetylide as catalyst and in the presence or absence of basic reagents, at least one of the starting materials being introduced in gaseous form. The catalyst is suspended in the liquid medium and during the reaction a portion of the reaction medium is withdrawn and returned at the entry point below the level of the liquid of the gaseous starting material(s) at a speed of 5 to 100 meters per second into the reaction medium and is introduced into a chamber (located in the reaction medium and extending in the direction of the liquid returned) whose inlet opening has a mean diameter from twice to twenty times the mean diameter of the liquid nozzle and whose length is three to thirty times ints hydraulic diameter. The products are important intermediates for example for the production of solvents or may be used in electrolytic baths.

    Recovery of Iodine
    133.
    发明专利
    Recovery of Iodine 未知

    公开(公告)号：GB1164691A

    公开(公告)日：1969-09-17

    申请号：GB92867

    申请日：1967-01-06

    Applicant: BASF AG

    Inventor： PLATZ ROLF ,  NOHE HEINZ ,  BAUR KARL GERHARD

    IPC: C01B7/14 ,  C07C69/54 ,  F16B2/26

    Abstract: 1,164,691. Methacrylates. BADISCHE ANILIN- & SODA-FABRIK A.G. 6 Jan., 1967 [8 Jan., 1966], No. 928/67. Heading C2C. [Also in Division C1] In a process for the preparation of methacrylates by the oxidative dehydrogenation of an isobutyrate ester in the presence of an iodine catalyst the iodine is recovered by oxidizing at 700‹ to 1000‹ C., the organic phase of the reaction mixture containing iodine which is obtained by fractional distillation, scrubbing the flue gas with aqueous potassium iodide and extracting the resulting solution with isobutyrate ester. The iodine in the aqueous phase may also be recovered as above or by conventional methods. The solution of iodine in isobutyrate may be recycled to the oxidative dehydrogenation process.

    Separating acetylene and ethylene from gas mixtures
    135.
    发明专利
    Separating acetylene and ethylene from gas mixtures 未知

    公开(公告)号：GB1149975A

    公开(公告)日：1969-04-23

    申请号：GB3859366

    申请日：1966-08-30

    Applicant: BASF AG

    Inventor： PLATZ ROLF ,  TAGLIEBER KURT

    IPC: C07C7/09

    Abstract: 1,149,975. Cold separation of gas mixtures. BADISCHE ANILIN- & SODA-FABRIK A.G. 30 Aug., 1966 [31 Aug., 1965], No. 38593/66. Heading F4P. Ethylene and acetylene are together separated from a gas mixture containing relatively low boiling point components e.g. hydrogen, carbon monoxide and methane by cooling the feed mixture which has previously been freed from hydrogen sulphide and unsaturated C 3 to C 5 hydrocarbons to within a temperature range of -104‹ to -138‹ C. thereby condensing the ethylene and acetylene which is then withdrawn as product. The cooling is effected by indirect heat exchange with work-expanded residual gas.

    Production of styrene
    136.
    发明专利
    Production of styrene 未知

    公开(公告)号：GB1144214A

    公开(公告)日：1969-03-05

    申请号：GB2892266

    申请日：1966-06-28

    Applicant: BASF AG

    Inventor： PLATZ ROLF ,  NOHE HEINZ ,  FRANK GERHARD

    IPC: C07C5/48 ,  C07C17/00

    Abstract: 1,144,214. Chlorostyrenes and homologues thereof. BADISCHE ANILIN- & SODAFABRIK A.G. 28 June, 1966 [29 June, 1965], No. 28922/66. Heading C2C. [Also in Division C5] Chlorine nuclear-substituted C 2 -C 4 alkyl benzenes are dehydrogenated with O 2 at 400-700‹ C. in the presence of iodine and an inert heat carrier which has an internal surface area of 0À1 to 15 sq. m./g. and a mean pore size of 300-30,000 Š to give chlorostyrenes. In Example 8 1.ethyl-2,5-dichlorobenzene is converted to dichlorostyrene and in Example 9 1 - ethyl - 2,4,6 - triohlorobenzene is converted to trichlorostyrene.

    Separating acrylonitrile or methacrylonitrile from mixtures containing the same
    138.
    发明专利
    Separating acrylonitrile or methacrylonitrile from mixtures containing the same 未知

    公开(公告)号：GB1087524A

    公开(公告)日：1967-10-18

    申请号：GB505165

    申请日：1965-02-05

    Applicant: BASF AG

    Inventor： WEITZ HANS-MARTIN ,  FRIZ HANS ,  PLATZ ROLF

    IPC: C07C20060101

    Abstract: Acrylonitrile and methacrylonitrile are separated from mixtures, obtained by the ammonia oxidation of propylene or isobutylene, by extractive countercurrent methods wherein the extractive solvent is a 5- or 6-ring membered lactam, N-substituted lactam or lactone, an acyclic or cyclic sulphone or sulphoxide, an N-alkylcarboxylic amide, an N,N-dialkylcarboxylic acmide or propylene carbonate. The two phase flowing in counter current comprise the reaction mixture and the solvent and may be liquid/liquid phases or gas/liquid phases respectively. The process is illustrated by reference to flow drawings (not shown) representing a gas/liquid extraction and extractive distillation. A liquid/liquid extraction using an auxiliary solvent is also described. Examples relate to the use of N-methylpyrrolidone, propylene carbonate, 3 - methyltetramethylene sulphone, butyrolactone, dimethyl sulphoxide, N - q -hydroxyethyl pyrrolidone, and dimethyl-formamide as extractive solvents.

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