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    Production of very pure butanediol
    1.
    发明授权
    Production of very pure butanediol 失效
    生产非常纯的丁二醇

    公开(公告)号：US3891511A

    公开(公告)日：1975-06-24

    申请号：US27236672

    申请日：1972-07-17

    Applicant: BASF AG

    Inventor： DANNEIL AXEL ,  FLICKINGER ERICH ,  GRAEFJE HEINZ ,  PLASS REINHOLD ,  SCHNUR RUDOLF

    IPC: C07C29/80 ,  C07C31/20 ,  B01D3/00

    CPC classification number: C07C29/80 ,  C07C31/207

    Abstract: Production of very pure butanediol-1,4 by separating in column 1 crude butanediol into a fraction A containing butanediol and lower boiling components and a fraction B containing higher boiling components, separating fraction A in column 2 into an overhead and a bottoms product consisting of very pure butanediol and separating fraction B in column 3 into butanediol of lower purity and components of higher boiling point.

    Abstract translation: 通过在第1列粗丁二醇中分离成含有丁二醇和低沸点组分的级分A和含较高沸点组分的级分B，生产非常纯的丁二醇-1,4，将第2列中的馏分A分离成塔顶馏出物和由 非常纯的丁二醇和第3列中的分离馏分B为较低纯度的丁二醇和较高沸点的组分。

    Production of pure 2-ethyl hexanol by three-stage distillation
    3.
    发明授权
    Production of pure 2-ethyl hexanol by three-stage distillation 失效
    通过三级蒸馏生产纯2-乙基己内酰胺

    公开(公告)号：US3703444A

    公开(公告)日：1972-11-21

    申请号：US3703444D

    申请日：1970-10-07

    Applicant: BASF AG

    Inventor： GRAEFJE HEINZ ,  FLICKINGER ERICH

    IPC: C07C27/00 ,  C07C29/141 ,  C07C29/80 ,  C07C31/125 ,  C07C67/00 ,  B01D3/14 ,  C07C29/26

    CPC classification number: C07C29/80 ,  C07C31/125

    Abstract: AN IMPROVED PROCESS FOR THE PRODUCTION OF PURE 2-ETHYL HEXANOL (OBTAINED BY HYDROGENATION OF 2-ETHYLHEXEN-2-AL1) BY CONTINUOUS DISTILLATON IN THREE COLUMNS CONNECTED IN CASCADED FASHION THE IMPURITIES BOILING BELOW 2-ETHYL HEXANOL BEING TAKEN OVERHEAD IN THE FIRST COLUMN, PURE 2ETHYL HEXANOL BEING OVERHEAD IN THE SECOND COLUMN AND THE 2-ETHYL STILL REMAINING IN THE HIGHERBOILING IMPURITIES BEING SEPARATED IN THE THIRD COLUMN, THE IMPROVEMENT COMPRISING THE USE OF A PRESSURE OF FROM 200 TO 800 MM. OF HG AT THE HEAD OF THE SECOND COLUMN AND OF A PRESSURE OF FROM 70 TO 300 MM. OF HG AT THE HEAD OF THE THIRD COLUMN, SUFFICIENT 2-ETHYL HEXANOL BEING LEFT IN THE BOTTOMS OF THE SECOND COLUMN TO MAKE THE CONCENTRATION THEREOF AT LEAST 50%. 2-ETHYL HEXANOL IS USED IN THE MANUFACTURE OF PLASTICIZERS FOR POLYVINYL CHLORIDE.

    Production of propylene polymers by polymerization of propylene using ziegler catalysts
    7.
    发明专利
    Production of propylene polymers by polymerization of propylene using ziegler catalysts 未知

    公开(公告)号：GB1079544A

    公开(公告)日：1967-08-16

    申请号：GB4805064

    申请日：1964-11-26

    Applicant: BASF AG

    Inventor： WEBER HEINZ ,  SCHNEIDER PAUL ,  WINDERL SIEGFRIED ,  FLICKINGER ERICH

    IPC: C08F10/06

    Abstract: Propylene polymers are produced by homopolymerization or copolymerization of propylene using a catalyst composed of an organometallic compound or metal hydride and a compound of a transition metal of Groups IV to VI of the Mendeleef Periodic System at a temperature of from - 20 DEG to + 160 DEG C. and a pressure of from atmospheric pressure to 25 atmospheres wherein the polymerization is carried out in the presence of an ethylenically unsaturated halogen compound which is a substituted alkene containing three or four carbon atoms and at least two chlorine and/or bromine atoms and having a terminal double bond, one of the halogen atoms being bound in the 1- or 2-position and another halogen atom being bound in the 3 position of the substituted alkene. Polymers produced are polypropylene, copolymers of ethylene/propylene, propylene/butene-1, and a terpolymer of ethylene / propylene / dicyclopentadiene. Unsaturated halogen compounds exemplified are 2,3 - dichloropropene - 1, 1,2 - dibromo - 3 - chlorobutene - 1 and 1,2,3 - trichloropropene-1. Also specified are 2-chloro-3,4-dibromobutene-1 and 1,2,3 - trichlorobutene - 1. Catalysts exemplified are 3TiCl3.AlCl3 with diethyl aluminium chloride, triisobutyl aluminium, butyl lithium or lithium aluminium hydride, and VOCl3 with diethyl aluminium chloride or methyl aluminium sesquichloride. Polymerization is effected in organic solvents such as petroleum ether alone or mixed with trichloroethylene, and cyclohexane. In one example, propylene is polymerized first with lithium aluminium hydride and then 3TiCl3.AlCl3 is added and the polymerization is completed. The unsaturated halogen compound acts as a molecular weight regulator. Conventional co-catalysts for increasing the stereospecificity of the catalyst may be co-employed. In a comparative example, 2-methyl-4-chlorobutene-2 is used as a regulator.

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