Method for the production of alkyl aryl sulphonates

    公开(公告)号:AU2186202A

    公开(公告)日:2002-06-11

    申请号:AU2186202

    申请日:2001-11-16

    Applicant: BASF AG

    Abstract: The preparation of alkylaryl compounds takes place by 1) preparation of a mixture of, on statistical average, predominantly monobranched C10-14-olefins by a) reaction of a C4-olefin mixture over a metathesis catalyst for the preparation of an olefin mixture comprising 2-pentene and/or 3-hexene, and optional removal of 2-pentene and/or 3-hexene, followed by dimerization of the resulting 2-pentene and/or 3-hexene over a dimerization catalyst to give a mixture comprising C10-12-olefins, and optionally removal of the C10-12-olefins, or b) extraction of predominantly monobranched paraffins from kerosene cuts and subsequent dehydrogenation, or c) Fischer-Tropsch synthesis of olefins or paraffins, where the paraffins are dehydrogenated, or d) dimerization of shorter-chain internal olefins, or e) isomerization of linear olefins or paraffins, where the isomerized paraffins are dehydrogenated, 2) reaction of the olefin mixture obtained in stage 1) with an aromatic hydrocarbon in the presence of an alkylation catalyst which contains zeolites of the faujasite type.

    Method for producing halogen-free reactive polyisobutene

    公开(公告)号:AU5282699A

    公开(公告)日:2000-02-28

    申请号:AU5282699

    申请日:1999-07-15

    Applicant: BASF AG

    Abstract: A process for preparing halogen-free, reactive polyisobutene having a terminal double bond content of more than 60 mol % and an average molecular weight Mn of 800-3000 dalton by cationic polymerization in the liquid phase of isobutene over an acidic, essentially halogen-free heterogeneous catalyst, wherea) a hydrocarbon mixture of essentially C4-hydrocarbons comprising isobutene in an amount of from 10 to 80% by weight is used as the starting material andb) polymerization is carried out continuously at from -30 to 0° C. with average starting material residence times of one hour or less, where the temperature and the residence time are selected such that the isobutene conversion is less than 60% and, after separation from the resulting polyisobutene, the isobutene is either enriched in the partially converted hydrocarbon mixture and returned to the polymerization or passed to another isobutene reaction coupled with the polymerization.

    37.
    发明专利
    未知

    公开(公告)号:BRPI0409375B1

    公开(公告)日:2014-05-20

    申请号:BRPI0409375

    申请日:2004-04-14

    Applicant: BASF AG

    Abstract: Production of alkylaromatic compounds (I), by reacting 3-30C olefins (II) (or alcohols forming (II) under the reaction conditions) with aromatic hydrocarbons (III) in presence of an alkylation catalyst (IV), is carried out in a cascade of at least two reactors each containing (IV), where at least 80 % of (III) is supplied to the first reactor of the cascade and at least 40 % of (II) is supplied after the first reactor. An independent claim is included for the preparation of alkylarylsulfonates (A), by: (1) converting a 4C olefin mixture over a metathesis catalyst to give an olefin mixture containing 2-pentene and/or 2-hexene; (2) catalytically dimerizing the 2-pentene and/or 2-hexene (optionally after isolation) to give a mixture containing 10-12C olefins, optionally separating the 10-12C olefins and separating 5-30 wt. % (based on the 10-12C olefins) of low-boiling components of the 10-12C olefins; (3) reacting the obtained 10-12C olefin mixture with (III) in presence of (IV) to give alkylaromatic compounds (I'), optionally with addition of 0-60 wt. % (based on the 10-12C olefin mixture) of linear olefins before the reaction; (4) sulfonating (I') and neutralizing to give (A), optionally with addition of 0-60 wt. % (based on (I')) of linear alkylbenzenes (provided that no mixing has been carried out in the previous step); and (5) optionally mixing the obtained (A) with optionally with addition of 0-60 wt. % (based on (A)) of linear aralkylsulfonates (provided that no mixing has been carried out either of the previous two steps); The novel feature being that the reaction in the alkylation stage (3) is carried out as for the present procedure for preparing (I).

    PROCEDIMIENTO PARA LA OBTENCION DE SULFONATOS DE ALQUILARILO.

    公开(公告)号:ES2290165T3

    公开(公告)日:2008-02-16

    申请号:ES01967262

    申请日:2001-08-10

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de alquilarilsulfonatos mediante a) la reacción de una mezcla de olefinas con 4 átomos de carbono sobre un catalizador para la metatesis, para la obtención de una mezcla de olefinas que contiene 2-penteno y/o 3-hexeno y, en caso dado, separación del 2-penteno y/o del 3-hexeno, b) la dimerización del 2-penteno y/o del 3-hexeno obtenidos en la etapa a), sobre un catalizador de dimerización para dar una mezcla que contiene olefinas con 10 a 12 átomos de carbono y, en caso dado, separación de las olefinas con 10 a 12 átomos de carbono, c) la reacción de la mezcla de olefinas con 10 a 12 átomos de carbono, obtenida en la etapa b), con un hidrocarburo aromático en presencia de un catalizador para la alquilación, para la formación de compuestos alquilaromáticos, d) la sulfonación de los compuestos alquilaromáticos, obtenidos en la etapa c) y neutralización para dar los alquilarilsulfonatos.

    39.
    发明专利
    未知

    公开(公告)号:DE50112916D1

    公开(公告)日:2007-10-04

    申请号:DE50112916

    申请日:2001-08-10

    Applicant: BASF AG

    Abstract: The invention relates to a process for the preparation of alkylarylsulfonates by a) reaction of a C 4 -olefin mixture over a metathesis catalyst for the preparation of an olefin mixture comprising 2-pentene and/or 3-hexene, and optional removal of 2-pentene and/or 3-hexene, b) dimerization of the 2-pentene and/or 3-hexene obtained in stage a) over a dimerization catalyst to give a mixture containing C 10-12 -olefins, and optional removal of the C 10-12 -olefins, c) reaction of the C 10-12 -olefin mixtures obtained in stage b) with an aromatic hydrocarbon in the presence of an alkylating catalyst to form alkylaromatic compounds, where, prior to the reaction, additional linear olefins may be added, d) sulfonation of the alkylaromatic compounds obtained in stage c), and neutralization to give alkylarylsulfonates, where, prior to the sulfonation, linear alkylbenzenes may additionally be added, e) optional mixing of the alkylarylsulfonates obtained in stage d) with linear alkylarylsulfonates.

    40.
    发明专利
    未知

    公开(公告)号:BRPI0415901A

    公开(公告)日:2007-01-16

    申请号:BRPI0415901

    申请日:2004-10-29

    Applicant: BASF AG

    Abstract: In a process for preparing alkylaryl compounds by reacting a C10-14-monoolefin mixture with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkyl aromatic compounds and if appropriate subsequently sulfonating and neutralizing the resulting alkylaryl compounds, in the C10-14-monoolefins, on average, more than 0% and up to 100% of methyl branches are present in the longest carbon chain and fewer than 50% of the methyl branches are in the 2-, 3- and 4-position, calculated starting from the chain ends of the longest carbon chain.

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