Preparing a composition of primary alcohol, useful as softeners for plastics, comprises dimerization of a monoolefin in presence of aluminum catalyst, hydroformylation of the dimer followed by catalytic hydrogenation of obtained aldehyde

    公开(公告)号:DE102005062029A1

    公开(公告)日:2007-06-28

    申请号:DE102005062029

    申请日:2005-12-22

    Applicant: BASF AG

    Abstract: Preparation of a composition of 9-21C primary alcohol comprises: dimerization of 4-10C monoolefin containing internal and/or terminal double bonds in the presence of an aluminum catalyst (I); hydroformylation of the obtained olefin dimer composition by means of a carbon dioxide/hydrogen mixture in presence of a hydroformylation catalyst, which is homogeneously dissolved in a reaction medium; and catalytic hydrogenation of the obtained aldehyde composition to the corresponding alcohol. Preparation of a composition of 9-21C primary alcohol comprises: catalytic dimerization of 4-10C monoolefin containing internal and/or terminal double bonds; hydroformylation of the obtained olefin dimer composition by means of a carbon dioxide/hydrogen mixture in presence of hydroformylation catalyst, which is homogeneously dissolved in a reaction medium; and catalytic hydrogenation of the obtained aldehyde composition to the corresponding alcohol; where the dimerization is carried out at 160-260[deg]C in the presence of an aluminum catalyst (I) of formula AlRx(ORy)3x, and the hydroformylation is carried out in the presence of a rhodium complex dissolved in the reaction medium with a ligand containing phosphacyclohexane group, free ligand and optionally in the presence of a solvent at 50-250[deg]C and 10-100 bar. R, Ry : 1-10C alkyl; and x : 0-3.

    MANUFACTURING PROCESS FOR 6-AMINOCAPRONITRILE

    公开(公告)号:MY119330A

    公开(公告)日:2005-05-31

    申请号:MYPI9703536

    申请日:1997-08-02

    Applicant: BASF AG

    Abstract: MANUFACTURE OF 6-AMINOCAPRONITRILE OR 6-AMINOCAPRONITRILE/ HEXAMETHYLENEDIAMINE DIAMINE MIXTURES, INVOLVINGA)THE REACTING AT LEAST ONE PENTENENITRILE SELECTED FROM THE GROUP CONSISTING OF 2,3 AND 4-PENTENENITRILE, WITH CARBON MONOXIDE AND HYDROGEN IN THE PRESENCE OF A CATALYST, WITH CONTAIN AT LEAST ONE ELEMENT OF THE EIGHTH SUBGROUP AS ACTIVE COMPONENT ,OBTAIN A HYDROFORMYLATION FORMYLATING DISCHARGE (I), B)THE OPTIONAL SEPARATION OF CARBON MONOXIDE, HYDROGEN AND THE CATALYST FROM THE HYDROFORMYLATION FORMYLATING DISCHARGE (I), OBTAIN A HYDROFORMYLATION FORMYLATING DISCHARGE (II),C)THE SEPARATION OF 5-FORMYL VALERONITRILE FROM THE HYDROGENATION FORMYLATING DISCHARGE (I) OR (II),D)THE REACTION OF 5-FORMYL VALERONITRILE WITH AMMONIA AND HYDROGEN IN THE PRESENCE OF A HYDROGENATION CATALYST SELECTED FROM THE GROUP CONSISTING OF RHENIUM, COPPER AND ITS COMPOUNDS AS WELL AS METALS AND METALLIC COMPOUNDS OF THE EIGHT GROUP, OBTAINING A HYDROGENATION DISCHARGE , AND E)OBTAINING 6-AMINOCAPRONITRILE AND IF NECESSARY HEXAMETHYLENE- DIAMINE .

    Production of saturated aldehydes from alkanes comprises dehydrogenation to yield alkenes with hydroformylation to form aldehyde with at least partial recycle of the alkane

    公开(公告)号:DE10251262A1

    公开(公告)日:2004-05-13

    申请号:DE10251262

    申请日:2002-11-04

    Applicant: BASF AG

    Abstract: A process for the production of saturated aldehydes from alkanes comprises dehydrogenation of the stream to yield (n-1)C-alkenes and byproducts. The alkene undergoes hydroformylation to form the aldehyde (D). Separation of the resulting product mixture yields an aldehyde containing stream and a stream containing alkane and optionally byproducts with at least partial recycle of the alkane. A process (I) for the production of saturated nC-aldehydes from (n-1)C-alkanes comprises: (a) preparation of at least one (n-1)C-alkane stream; (b) dehydrogenation of the stream from (A) to yield a product stream comprising unreacted (n-1)C-alkane, one or more (n-1)C-alkenes and byproducts; (c) hydroformylation of the (n-1)C-alkene at least partially in the presence of the (n-1)C-alkane and optionally the byproducts in the presence of a hydroformylation catalyst with carbon monoxide and hydrogen to form the nC-aldehyde; (d) separation of the resulting product mixture to obtain a nC-aldehyde containing stream and a stream containing (n-1)C-alkane and optionally byproducts and; (e) at least partial recycle of the stream (n-1)C-alkane and optionally byproducts to step (B). Independent claims are included for: (1) a process (II) for the production of saturated 2nC-alcohols from (n-1)C-alkanes by carrying out steps (A) to (E) with aldol condensation of the nC-aldehyde in step (F) and (G) catalytic hydrogenation of the product from (F) with hydrogen to form the 2nC-alcohol; (2) an integrated process (III) for the production of saturated (2n-1)C-alcohols and 2nC-alcohols from (n-1)C-alkanes by carrying out steps (A)-(D) to yield a gas stream comprising (n-1)C-alkane and unreacted (n-1)C-alkene with aldol condensation of the 4C-aldehyde and catalytic hydrogenation to form the 2nC-alcohol; dimerization of unreacted (n-1)C-alkene in the presence of (n-1)C-alkane and byproducts using an olefin-oligomerization catalyst to form (2n-2)C-alkenes with separation and hydroformylation of the (2n-2)C-alkenes with separation and hydroformylation of the (2n-2)C-alkene to form a (2n-1)C-aldehyde and catalytic hydrogenation of aldehyde to form a (2n-1)C-alcohol and; (3) an integrated process for the production of saturated (2n-1)C-alcohols from (n-1)C-alkanes. n = 4-20.

    Selective synthesis of linear alpha-olefins useful as comonomers in polyolefins, comprises reaction of a linear olefin with a trialkyl aluminum compound

    公开(公告)号:DE10103309A1

    公开(公告)日:2002-08-01

    申请号:DE10103309

    申请日:2001-01-25

    Applicant: BASF AG

    Abstract: Selective synthesis of new linear alpha -olefins comprises: (1) reaction of a linear, internal olefin with a trialkyl Al compound; (2) reaction of the linear alkyl Al compound formed with an olefin; (3) introduction of the linear alpha -olefin into a self-metathesis reaction; (4) reaction of the formed olefin with a trialkyl Al compound; (5) reaction of the linear alkyl Al compound formed with an olefin and formation of a trialkyl Al compound; and (6) isolation of the desired linear alpha-olefin. New linear alpha -olefins of 6-20 carbons are synthesized selectively in the following steps: (1) reaction of a linear, internal olefin or a mixture of these and having a carbon number of (n/2)+1, where n = the number of C atoms of the desired linear alpha -olefin in a transalkylation reaction with a trialkyl Al compound in isomerization conditions, where an olefin corresponding to the alkyl radical is released and the linear olefin thus added becomes attached to the Al during isomerization with formation of a corresponding linear alkyl Al compound; (2) reaction of the linear alkyl Al compound formed with an olefin, on release of the corresponding linear alpha -olefin having a carbon number of (n/2)+1, and formation of a trialkyl Al compound; (3) introduction of the linear alpha -olefin formed into a self-metathesis reaction, in which a linear internal olefin with the desired carbon number n is formed; (4) reaction of the formed olefin of carbon number n with a trialkyl Al compound under isomerizing conditions, in which an olefin corresponding to the alkyl radical is released, and the linear internal olefin becomes attached to the Al on isomerization and formation of a corresponding linear alkyl Al compound; (5) reaction of the linear alkyl Al compound formed with an olefin on release of the linear alpha-olefin having the desired carbon number n and formation of a trialkyl Al compound; and (6) isolation of the desired linear alpha -olefin having a carbon number n. Independent claims are also included for the following: (1) preparation of hexene from butene-containing streams, preferably raffinate (II), comprises: (a) metathesis of the insertion product with optional addition of ethene; (b) removal, by distillation, of the stream obtained in a 2-3C olefin containing light boiling fraction and in a 4-6C olefin and butane containing high boiling fraction; (c) separation, by distillation, of the low boiling fraction obtained in an ethene containing fraction and a propene containing fraction, where the ethene containing fraction is returned to step a' and the propene containing fraction is removed; (d) separation, by distillation, of the high boiling fraction in a butene and butane containing low boiling fraction, a pentene containing medium boiling fraction, and in a hexene containing high boiling fraction; and (e) removal of the hexene containing high boiling fraction and optional returning of the remaining fraction to step a; (2) a process in which 2-pentene from butene containing streams, preferably raffinate II, where in the educt stream the ratio of 2-butene to 1-butene is preferably at least 1, is prepared preferably using the steps: a' to e' as above; and (3) a process in which the catalyst used in metathesis can have an inorganic support and contains a compound of a group VI, VII, or VIII metal, preferably an oxide of a group VIb or VIIb metal, especially a metathesis catalyst selected from: Re2O7, WO3, and MoO3, most preferred catalyst Re2O7, on gamma -Al2O3, or Al2O3/B2O3/SiO2 mixed supports.

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