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    METHOD FOR THE PRODUCTION OF ALDEHYDES
    16.
    发明专利
    METHOD FOR THE PRODUCTION OF ALDEHYDES 未知

    公开(公告)号：MY118644A

    公开(公告)日：2004-12-31

    申请号：MYPI9900188

    申请日：1999-01-16

    Applicant: BASF AG

    Inventor： GEIBLER BERNHARD ,  ROPER MICHAEL ,  ZELLER EDGAR ,  PACIELLO ROCCO ,  DECKER JURGEN ,  VOB HARTWIG ,  MAHR NORBERT

    IPC: B01J31/22 ,  C07C45/50 ,  B01J31/16 ,  B01J31/18 ,  B01J31/20 ,  C07B61/00 ,  C07C27/20 ,  C07C29/16 ,  C07C31/125 ,  C07C47/02 ,  C08G73/02

    Abstract: IN A PROCESS FOR PREPARING ALDEHYDES OR ALDEHYDES AND ALCOHOLS BY HYDROFORMYLATION OF OLEFINS IN THE PRESENCE OF A CATALYST COMPLEX WHICH IS HOMOGENEOUSLY DISSOLVED IN THE REACTION MIXTURE AND COMPRISES A METAL OF GROUP VIIIA OF THE PERIODIC TABLEE OF THE ELEMENTS AND AS LIGAND A PHOSPHORUS-FREE, POLYDENTATE NITROGEN COMPOUND CAPABLE OF COMPLEX FORMATION, AT FROM 50 TO 100oC AND PRESSURES OF FROM 20 TO 1000 BAR, AND RECYCLING OF THE CATALYSTCOMPLEX TO THE HYDROFORMYLATION REACTION, A ) THE LIGANDS USED ARE MODIFIED POLYAMINES WHICH ARE ESSENTIALLY INSOLUBLE IN WATER, ARE CAPABLE OF COMPLEX FORMATION, HAVE A MEAN MOLECULAR WEIGHT OF GREATER THAN 1000 DALTON AND CONTAIN AT LEAST 10 NITROGEN ATOMS, B ) AFTER THE HYDROFORMYLATION REACTION IS COMPLETE AND THE ALDEHYDES AND ALCOHOLS HAVE BEEN SEPARATED OR PARTIALLY SEPARATED FROM THE REACTION MIXTURE BY DISTILLATION, THE CATALYST COMPLEX AND EXCESS LIGAND REMAINING IN THE DISTILLATION BOTTOMS ARE COMPLETELY OR PARTIALLY RECYCLED TO THE HYDROFORMYLATION AND C ) AT LEAST PART OF THE HIGH BOILERS ARE BLED OFF, CONTINUOUSLY OR AT LEAST BATCHWISE, FROM THE BOTTOMS FROM THE DISTILLATION OF THE REACTION MIXTURE.

    17.
    发明专利
    未知

    公开(公告)号：AT281476T

    公开(公告)日：2004-11-15

    申请号：AT99942857

    申请日：1999-08-11

    Applicant: BASF AG

    Inventor： NIESSNER MANFRED ,  RUEBENACKER MARTIN ,  MAHR NORBERT

    IPC: C08F6/00

    Abstract: A process for the elimination of formamide from polymers containing N-vinylformamide units involves treating formamide-containing polymers with from 1 to 2 mol-equivalents of an acid or a base, based on 1 mol-equivalent of formamide, under reaction conditions such that the N-vinylformamide units in the polymer undergo virtually no hydrolysis.

    18.
    发明专利
    未知

    公开(公告)号：PT1183422E

    公开(公告)日：2004-03-31

    申请号：PT00920549

    申请日：2000-03-23

    Applicant: BASF AG

    Inventor： STANGE ANDREAS ,  LORENCAK PRIMOZ ,  DIEHL KURT ,  MAHR NORBERT

    IPC: C08B31/00 ,  C08B31/18 ,  C08G81/00 ,  C08L3/00 ,  C08L3/02 ,  C08L3/04 ,  C08L3/10 ,  D21H17/28 ,  D21H17/29 ,  D21H17/44 ,  D21H17/45 ,  D21H21/10 ,  D21H21/18 ,  D21H21/20

    Abstract: A process for modifying starch by heating starch in an aqueous medium to temperatures above the gelatinization temperature of said starch comprises effecting said modifying of said starch in the presence of(a) a polymeric cationizer selected from the group consisting of the polymers containing vinylamine units and having molar masses of up to 1 million, the polyethyleneimines, the polydiallyldimethylammonium chlorides, the condensates of dimethylamine with epichlorohydrin or dichloroalkanes, the condensates of dichloroethane and ammonia, and the mixtures thereof, and(b) polymeric papermaking drainage aids selected from the group consisting of the water-soluble crosslinked polyamidoamines with or without an ethyleneimine graft, the polymers containing acrylamide and/or methacrylamide units and having molar masses of more than 1 million, the polymers containing vinylamine units and having molar masses of more then 1 million, and the mixtures thereof.

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