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    Extraction of metal-complex catalyst enriched stream comprises dissolving e.g. reaction products in reaction medium, distillating catalyst free stream of discharge, and separating high boiling and non-distilled components of discharge
    23.
    发明专利
    Extraction of metal-complex catalyst enriched stream comprises dissolving e.g. reaction products in reaction medium, distillating catalyst free stream of discharge, and separating high boiling and non-distilled components of discharge 未知

    公开(公告)号：DE102005060784A1

    公开(公告)日：2007-06-28

    申请号：DE102005060784

    申请日：2005-12-16

    Applicant: BASF AG

    Inventor： PAPP RAINER ,  VANDENMERSCH HUGUES ,  BEY OLIVER ,  ZEHNER PETER ,  VOS HARTWIG ,  MACKEWITZ THOMAS ,  PACIELLO ROCCO ,  ZELLER EDGAR

    IPC: B01J31/40

    Abstract: Extraction of a metal-complex catalyst enriched stream comprises dissolving e.g. reaction products and by-products, in a reaction medium by an agent containing phosphorous and/or nitrogen atoms, modified organic metal complex catalyst; distillating the catalyst free stream of the reaction discharge; separating high boiling and non-distilled components of the reaction discharge and the sump product of the distillation into a permeate- and retentate- stream and recycling the retentate stream enriched, completely or partially into the metal-complex-catalyst. Extraction of a metal-complex catalyst enriched streams, obtained from the liquid discharge of a metal complex catalyst reaction comprises dissolving reaction products, by-products, non-converted educt, solvent, homogeneous or colloid in a reaction medium by an agent containing one or more phosphorous and/or nitrogen atoms, modified organic metal complex catalyst with a molecular weight of greater than 200 D and free ligands; distillating the catalyst free stream containing low boiling components of the reaction discharge at atmospheric pressure or low pressure; separating high boiling and non-distilled components of the reaction discharge and the sump product of the distillation into a permeate- and retentate- stream, by a membrane-separator device and recycling the retentate stream enriched with the metal-complex catalyst, completely or partially into the metal-complex-catalyst.

    26.
    发明专利
    未知

    公开(公告)号：DE10328713A1

    公开(公告)日：2005-01-20

    申请号：DE10328713

    申请日：2003-06-25

    Applicant: BASF AG

    Inventor： STUEER WOLFRAM ,  SCHEIDEL JENS ,  VOS HARTWIG ,  BASLER PETER ,  ROEPER MICHAEL

    IPC: C07F15/00 ,  C08F4/26 ,  B01J31/40

    Abstract: A process for separating a mixture comprising a) a monoolefinically unsaturated compound which is obtainable by adding two terminal olefins which bear the functional groups required to prepare the monoolefinically unsaturated compound containing at least two functional groups, or a saturated compound obtained by hydrogenating such a compound, b) a compound which is obtainable by adding more than two of the terminal olefins mentioned in a) or a compound obtained by hydrogenating such a compound, and c) a compound which contains a transition metal, is homogeneous with respect to the mixture and is suitable as a catalyst for preparing a monoolefinically unsaturated compound by adding two terminal olefins which bear the functional groups required to prepare the monoolefinically unsaturated compound containing at least two functional groups, by means of a semipermeable membrane to obtain a permeate and a retentate in such a way that the weight ratio of component b) to component c) in the mixture fed to the semipermeable membrane is smaller than in the retentate.

    27.
    发明专利
    未知

    公开(公告)号：DE10305060A1

    公开(公告)日：2004-08-19

    申请号：DE10305060

    申请日：2003-02-07

    Applicant: BASF AG

    Inventor： BITTERLICH STEFAN ,  VOS HARTWIG ,  SCHUCH GUNTER ,  SINNEN RUDOLF ,  LAIB HEINRICH ,  PAESLER PETER

    IPC: B01D61/36 ,  C10G7/00 ,  C10G7/08 ,  C10G9/00 ,  C10G31/11 ,  C10G31/06 ,  C10G53/02

    Abstract: Process for the work-up of naphtha, wherein a) naphtha or a stream produced from naphtha in a pretreatment step is separated in a membrane unit into a stream A which is depleted in aromatics and a stream B which is enriched in aromatics, with the aromatics concentration in stream A being from 2 to 12% by weight (step a), b) at least part of the substream A is fed to a steam cracker (step b), c) at least part of the substream B is fed to a unit in which it is separated by means of a thermal process into a stream C which has a lower aromatics content than stream B or a plurality of streams C', C'', C''' . . . which each have lower aromatics contents than stream B and a stream D which has a higher aromatics content than stream B or a plurality of streams D', D'', D''' . . . which each have higher aromatics contents than stream B (step c), and d) the stream C or at least one of the streams C', C'', C''', in each case in part or in its entirety, is added to the feed to the steam cracker or fed into the steam cracker itself (step d).

    Crosslinkable copolyimide consisting mainly of repeating units derived from dianhydrides useful as membranes for separating various materials at high feed pressures with high selectivity and high permeability
    28.
    发明专利
    Crosslinkable copolyimide consisting mainly of repeating units derived from dianhydrides useful as membranes for separating various materials at high feed pressures with high selectivity and high permeability 未知

    公开(公告)号：DE10247417A1

    公开(公告)日：2004-04-22

    申请号：DE10247417

    申请日：2002-10-11

    Applicant: UNIV RUPRECHT KARLS HEIDELBERG ,  BASF AG

    Inventor： BITTERLICH STEFAN ,  VOS HARTWIG ,  LICHTENTHALER RUEDIGER ,  STAUDT-BICKEL CLAUDIA

    IPC: B01D71/64 ,  B01J20/285 ,  C07B63/00 ,  C07C7/144 ,  C08G73/10 ,  B01D15/08 ,  B01D61/00 ,  C07D307/89

    Abstract: A crosslinkable copolyimide consisting mainly of repeating units derived from dianhydrides of given formula and containing primary amine groups, where these are in the ortho, meta, or para positions to the ether function is new. A crosslinkable copolyimide consisting mainly of repeating units derived from dianhydides of formula:(A), diamines of formula (I), diamines of formula (II): where the amino groups are in the ortho, meta, or para position, and 1 or 2 aromatic nucleus H atoms can be substituted by 1-4X alkyl, and diamines of formula (III):and containing primary amine groups, where these are in the ortho, meta, or para positions to the ether function. R1 = COOH or SO3H. Independent claims are included for: (1) membranes obtained from the crosslinked copolyimides; (2) chromatography columns containing the crosslinked copolyimides as the stationary phase; (3) a method of separating alcohols from mixtures with organic compounds of lower polarity than the alcohol, for separation of ammonia or amines from mixtures with organic compounds of lower polarity than ammonia, and for separation of water, ammonia, H2S, or organic compounds from mixtures with nitrogen or air, separation of olefins or dienes from mixtures with hydrocarbons of higher degree of saturation than the olefin or diene, e.g. separation of olefin/alkane using the membranes described or chromatography columns; (4) an olefin/alkane mixture enriched in olefin compared with the starting mixture by means of a membrane as described, and an alkane enriched stream separated, at a pressure on the membrane feed side higher than 6 bar.

    30.
    发明专利
    未知

    公开(公告)号：DE10130136A1

    公开(公告)日：2003-01-02

    申请号：DE10130136

    申请日：2001-06-22

    Applicant: BASF AG

    Inventor： VANDENMERSCH HUGUES ,  VOS HARTWIG ,  ORSTEN STEFAN ,  WULFF CHRISTIAN

    IPC: B01D61/02 ,  C07F9/38

    Abstract: The invention relates to a method for producing N-phosphonomethylglycine from an aqueous mixture containing N-phosphonomethylglycine, ammonium halogenides and alkali halides or earth alkali halides and optionally, organic impurities in a dissolved form. According to the invention, (a) the pH-value of the mixture is regulated to a value of 2 - 8, (b) the mixture is separated by means of a selective nano-filtration membrane, to obtain a retentate rich in N-phosphonomethylglycine and poor in halogenides and a permeate rich in halogenides and poor in N-phosphonomethylglycine and (c) the N-phosphonmethylglycine is prepared from the retentate. The inventive method enables the production of N-phosphonomethylglycine by simultaneously separating the halogenide salts thereof.

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