Production of pure conjugated c4 and c5 diolefins from hydrocarbon mixtures
    2.
    发明授权
    Production of pure conjugated c4 and c5 diolefins from hydrocarbon mixtures 失效
    从油气混合物生产纯合并的C4和C5二油

    公开(公告)号:US3803258A

    公开(公告)日:1974-04-09

    申请号:US30851872

    申请日:1972-11-21

    Applicant: BASF AG

    Inventor: WEITZ H FUERST E

    Abstract: PRODUCTION OF PURE CONJUGATED C4 AND C5 DIOLEFINS FROM HYDROCARBON MIXTURES CONTAINING THE SAME BY EXTRACTIVE DISTILLATION, COUNTERCURRENT GAS SCRUBBING, LIQUIDLIQUID EXTRACTION OR COUNTERCURRENT DISTILLATION OR A COMBINATION OF TWO OR MORE OF THESE METHODS USING AS THE SELECTIVE SOLVENT A MIXTURE OF: (A) FROM 5 TO 95% BY WEIGHT OF AN N-ALKYLPYRROLIDONE WHICH MAY CONTAIN AN INERT SUBSTITUTENT; AND (B) FROM 5 TO 95% BY WEIGHT OF A N-HYDROXYALKYL COMPOUND I OF THE GENERAL FORMULA:

    HO-R-N
    IN WHICH Y IS ALKYLENE OR ALKENYL OR TWO OR THREE CARBON ATOMS OR AN O-PHENYLENE WHICH MAY BE WHOLLY OR PARTLY HYDROGENATED; R IS LINEAR OR BRANCHED ALKYLENE; AND Z IS OXYGEN OR TWO HYDROGENS, AND WHICH MAY CONTAIN AN INERT SUBSTITUENT.

    Purifying 1,4-dicyanobutenes
    3.
    发明授权
    Purifying 1,4-dicyanobutenes 失效
    净化1,4二聚体

    公开(公告)号:US3853947A

    公开(公告)日:1974-12-10

    申请号:US33875873

    申请日:1973-03-07

    Applicant: BASF AG

    CPC classification number: C07C255/00

    Abstract: Recovery of pure 1,4-dicyanobutenes from 1,4-dicyanobutenes containing halogen, particularly chlorine or bromine, by treatment with a hexamethylenediamine or with dihexamethylenetriamine in the liquid phase and separation of the 1,4-dicyanobutenes from the reaction products of the added hexamethylenediamine with the halogen compound.

    Abstract translation: 通过在液相中用六亚甲基二胺或二六亚甲基三胺处理,从含有卤素,特别是氯或溴的1,4-二氰基异腈中回收纯的1,4-二氰基异丁烯,并从所加入的反应产物中分离出1,4-二氰基 六亚甲基二胺与卤素化合物。

    9.
    发明专利
    未知

    公开(公告)号:BR7308856D0

    公开(公告)日:1975-06-10

    申请号:BR885673

    申请日:1973-11-12

    Applicant: BASF AG

    Inventor: LORENZ L WEITZ H

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