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    6.
    发明专利
    未知

    公开(公告)号：BRPI0506587B1

    公开(公告)日：2014-10-29

    申请号：BRPI0506587

    申请日：2005-01-27

    Applicant: BASF AG

    Inventor： SCHEIDEL JENS ,  HADERLEIN GERD ,  LUYKEN HERMANN ,  JUNGKAMP TIM ,  BARTSCH MICHAEL ,  BAUMANN ROBERT

    IPC: C07C253/10 ,  C07C253/34 ,  C07C255/07

    Abstract: A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) reacting 1,3-butadiene with hydrogen cyanide over at least one catalyst to obtain a stream 1 which comprises 3-pentenenitrile, 2-methyl-3-butenenitrile, the at least one catalyst and 1,3-butadiene, (b) distilling stream 1 in a column to obtain a high-1,3-butadiene stream 2 as the top product and a low-1,3-butadiene stream 3 as the bottom product which comprises 3-pentenenitrile, the at least one catalyst and 2-methyl-3-butenenitrile, (c) distilling stream 3 in a column to obtain a stream 4 as the top product which comprises 1,3-butadiene, a stream 5 which comprises 3-pentenenitrile and 2-methyl-3-butenenitrile at a side draw of the column, and a stream 6 as the bottom product which comprises the at least one catalyst, (d) distilling stream 5 to obtain a stream 7 as the top product which comprises 2-methyl-3-butenenitrile, and a stream 8 as the bottom product which comprises 3-pentenenitrile.

    7.
    发明专利
    未知

    公开(公告)号：BRPI0506581B1

    公开(公告)日：2014-10-29

    申请号：BRPI0506581

    申请日：2005-01-27

    Applicant: BASF AG

    Inventor： LUYKEN HERMANN ,  SCHEIDEL JENS ,  JUNGKAMP TIM ,  BAUMANN ROBERT ,  BARTSCH MICHAEL ,  HADERLEIN GERD

    IPC: C07C253/10 ,  C07C255/04

    Abstract: An adiponitrile/methylglutaronitrile preparation process includes distilling a reaction stream to obtain stream 3 depleted in pentenenitriles (bottom product) and stream 4 enriched in pentenenitriles (top product); extracting stream 3 obtaining stream 6 enriched with extractant (top product) and stream 7 depleted in extractant (bottom product); distilling stream 6 obtaining stream 8 comprising the catalyst (bottom product) and stream 9 comprising the extractant (top product); distilling stream 7 obtaining stream 10 (bottom product) and stream 11 comprising the extractant (top product); distilling stream 10 obtaining stream 12 comprising catalyst degradation products, at least one promotor, adiponitrile and methylglutaronitrile (bottom product) and stream 13 comprising pentenenitriles (top product); distilling stream 12 obtaining stream 14 comprising catalyst degradation products and the promotor(s) (bottom product) and stream 15 comprising adiponitrile and methylglutaronitrile (top product); distilling stream 15 obtaining stream 16 comprising adiponitrile (bottom product) and stream 17 comprising methylglutaronitrile (top product).

    METHOD FOR REMOVING WATER FROM A MIXTURE CONTAINING WATER AND ZINC CHLORIDE
    8.
    发明专利
    METHOD FOR REMOVING WATER FROM A MIXTURE CONTAINING WATER AND ZINC CHLORIDE 未知

    公开(公告)号：CA2491791C

    公开(公告)日：2010-12-21

    申请号：CA2491791

    申请日：2003-07-04

    Applicant: BASF AG

    Inventor： JUNGKAMP TIM ,  SCHEIDEL JENS ,  LUYKEN HERMANN ,  BARTSCH MICHAEL ,  BAUMANN ROBERT ,  HADERLEIN GERD

    IPC: C01G9/04 ,  B01D3/36 ,  C07C253/34 ,  F26B5/00 ,  F26B7/00

    Abstract: The invention relates to a method for removing water from a mixture containing water and zinc chloride. The invention is characterized in that said mixture containing water and zinc chloride is mixed with an aprotic, polar diluting agent whose boiling point, in the event of non-azeotropic formation of said diluting agent with water under the pressure conditions of the distillation mentioned below, is higher than the boiling point of water and is liquid at the boiling point of water or one azeotrope or heteroazeotrope with water is formed under the pressure and temperature conditions of the distillation mentioned below, and the mixture containing water, zinc chloride and the diluting agent is distilled while removing water or said azeotrope or said heteroazeotrope from this mixture while obtaining a water-free mixture containing zinc chloride and said diluting agent.

    10.
    发明专利
    未知

    公开(公告)号：AT368676T

    公开(公告)日：2007-08-15

    申请号：AT05701205

    申请日：2005-01-27

    Applicant: BASF AG

    Inventor： SCHEIDEL JENS ,  JUNGKAMP TIM ,  BARTSCH MICHAEL ,  HADERLEIN GERD ,  BAUMANN ROBERT ,  LUYKEN HERMANN ,  DECKERT PETRA ,  PFAB PETER ,  SIEGEL WOLFGANG ,  AECHTNER TOBIAS

    IPC: C07F9/00 ,  C07C253/34 ,  C07C255/04 ,  C07F9/02

    Abstract: A process for extractively removing nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles by extraction by means of a hydrocarbon, a phase separation of the hydrocarbon and of the reaction effluent into two phases being effected at a temperature T (in ° C.), wherein the content of nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands in the reaction effluent of the hydrocyanation, depending on the temperature T, is at least y % by weight and, irrespective of the temperature T, is a maximum of 60% by weight, where the numerical value of the minimum content y is given by the equation y=0.5.T+20 and T is to be used in the equation as a dimensionless numerical value.

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