中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

118 records (took 0.022 seconds)

    PROCESS FOR PRODUCING EPOXIDES USING AROMATIC PEROXYCARBOXYLIC ACIDS
    92.
    发明专利
    PROCESS FOR PRODUCING EPOXIDES USING AROMATIC PEROXYCARBOXYLIC ACIDS 未知

    公开(公告)号：CA2210696A1

    公开(公告)日：1996-08-29

    申请号：CA2210696

    申请日：1996-02-10

    Applicant: BASF AG

    Inventor： SCHNURR WERNER ,  SCHULZ MICHAEL ,  TELES JOAQUIM HENRIQUE ,  RIEBER NORBERT ,  FISCHER ROLF

    IPC: C07C45/41 ,  C07D301/14 ,  C07D303/04

    Abstract: PCT No. PCT/EP96/00578 Sec. 371 Date Aug. 5, 1997 Sec. 102(e) Date Aug. 5, 1997 PCT Filed Feb. 10, 1996 PCT Pub. No. WO96/26198 PCT Pub. Date Aug. 29, 1996Preparation of epoxides from olefins by means of aromatic peroxycarboxylic acids comprises a step A of epoxidizing the olefin and removing the resulting aromatic carboxylic acid from the epoxide, a step B of catalytically hydrogenating the removed aromatic carboxylic acid to the corresponding aromatic aldehyde, and a step C of oxidizing this aldehyde with oxygen or an oxygen-containing gas mixture back to the aromatic peroxycarboxylic acid for re-use for epoxidizing an olefin.

    93.
    发明专利
    未知

    公开(公告)号：NO327885B1

    公开(公告)日：2009-10-12

    申请号：NO20020349

    申请日：2002-01-23

    Applicant: BASF AG

    Inventor： AUER HEINZ ,  DAHLHAUS JUERGEN ,  FISCHER KARL ,  HAMMER HANS ,  KELLENBENZ JOCHEN ,  SCHULZ MICHAEL ,  THIEL JOACHIM ,  VICARI MAXIMILIAN

    IPC: B01D3/00 ,  B01J3/00 ,  C07C67/36 ,  B01J3/02 ,  B01J19/00 ,  C07B61/00 ,  C07C29/80 ,  C07C31/04 ,  C07C69/06

    Abstract: A description is given of a process for preparing methyl formate by reacting excess methanol with carbon monoxide under superatmospheric pressure and at elevated temperature in the presence of alkali metal methoxide or alkaline earth metal methoxide as catalyst in a pressure-rated reactor, in which the use of at least two reactor elements, preferably operated in countercurrent, at about 100° C. and a pressure of about 100 bar in combination with a solids-free desalting of the reaction product makes possible very economical, largely trouble-free production of methyl formate in any desired quality and with a very good production capacity. Furthermore, the process for solids-free desalting and apparatuses for carrying out this process are described.

    94.
    发明专利
    未知

    公开(公告)号：DE102004058887A1

    公开(公告)日：2006-06-08

    申请号：DE102004058887

    申请日：2004-12-06

    Applicant: BASF AG

    Inventor： GRAFMANS HORST ,  MAAS STEFFEN ,  WECK ALEXANDER ,  RUETTER HEINZ ,  SCHULZ MICHAEL ,  ROS KARL-HEINZ

    IPC: C07C231/02 ,  C07C233/05

    Abstract: A process for preparing N,N-dimethylacetamide (DMAC) by continuously reacting methyl acetate (MeOAc) with dimethylamine (DMA) in the presence of a basic catalyst, wherein MeOAc is used in the form of a methanolic solution and in the range from 0.0002 to 0.09 mol of catalyst per mole of MeOAc, and performing the reaction at a temperature in the range from 90 to 140° C. and at an absolute pressure in the range from 10 to 30 bar.

    97.
    发明专利
    未知

    公开(公告)号：DE59902990D1

    公开(公告)日：2002-11-14

    申请号：DE59902990

    申请日：1999-02-10

    Applicant: BASF AG

    Inventor： SCHWAB PETER ,  BREITSCHEIDEL BORIS ,  OOST CARSTEN ,  SCHULZ RALF ,  SCHULZ MICHAEL

    IPC: B01J23/36 ,  B01J23/46 ,  C07B61/00 ,  C07C2/10 ,  C07C4/10 ,  C07C6/04 ,  C07C11/06 ,  C07C11/08 ,  C08F2/00

    Abstract: Preparation of propene and optionally 1-butene comprises converting butene isomers to propene isomers using metathesis catalyst and converting formed 2-pentene to propene and 1-butene, isolating and recycling the 2-butene fraction. Preparation of propene and optionally 1-butene comprises: (a) converting 1-butene and 2-butene in the presence of a metathesis catalyst containing group VIb, VIIb or VIII metals; (b) removing propene and 2-pentene formed; (c) converting the 2-pentene using ethene to propene and 1-butene in the presence of the metathesis catalyst in (a); (d) removing propene and 1-butene formed; and (e) discharging the 1-butene and partially isomerizing 1-butene to 2-butene in the presence of a catalyst and recycling the 1-butene and 2-butene with a part of the unreacted 4C-fraction from (a) to (a). An Independent claim is also included for the apparatus for carrying out the preparation of propene and 1-butene comprising a metathesis reactor (R01) connected to a distillation column (K101) for removing 2/3C low boiling, 4C middle boiling and 5C+ high boiling phases; column (K301) for removing ethene and propene; and reactor (R02) for reacting 2-pentene with ethene.

    100.
    发明专利
    未知

    公开(公告)号：DE59802654D1

    公开(公告)日：2002-02-21

    申请号：DE59802654

    申请日：1998-08-20

    Applicant: BASF AG

    Inventor： SCHWAB PETER ,  SCHULZ MICHAEL ,  WOLF JUSTIN ,  STUER WOLFRAM ,  WERNER HELMUT

    IPC: B01J31/00 ,  B01J31/22 ,  C07F9/50 ,  C07F15/00 ,  C08F4/80 ,  C08F32/04 ,  C08G61/08

    Abstract: Ruthenium complexes of the formula I or IVwhereX, Y are anionic ligands,R is hydrogen or a substituted or unsubstituted C1-C20-alkyl radical or C6-C20-aryl radical andL1 and L2 are, independently of one another, uncharged electron donor ligands, are prepared by(a) reaction of RuX3 with L1 and L2 in an inert solvent in the presence of a reducing agent and hydrogen and(b) reaction with compounds of the formula IIwhere R is as defined above, in the presence or absence of water, and, if desired after isolation of the intermediate, with HY, [HL1]Y or [HL2]Y.

Patent Agency Ranking