METHOD FOR PRODUCING PROPENE FROM 2-BUTENE AND ISOBUTENE-RICH FEEDING FLOWS

    公开(公告)号:CA2598322A1

    公开(公告)日:2006-08-31

    申请号:CA2598322

    申请日:2006-02-24

    Applicant: BASF AG

    Abstract: Preparation of an ethene stream (C 2), a propene stream (C 3), an isobutene and optionally a 4C-olefin stream (C 4), a 2-methyl-2-butene and optionally 2-butene stream (C 5), and optionally other hydrocarbons containing stream (C x), optionally several separate components containing streams, comprises contacting a C4-hydrocarbon stream with ethene in a metathesis step; and separating the streams. Preparation of an ethene stream (C 2), a propene stream (C 3), an isobutene and optionally 4C olefin stream (C 4), a 2-methyl-2-butene and optionally 2-butene stream (C 5), and optionally other hydrocarbons containing stream (C x), optionally several separate components containing streams, comprises: (A) a metathesis step, in which a C4-hydrocarbon stream, containing at least 2-butene (15 wt.%), at least isobutene (5 wt.%) and 1-butene (less than 5 wt.%) (feed stream), is contacted with ethene in the presence of usual metathesis catalysts; and (B) separation of the streams (C2, C3, C4 and optionally Cx) from the obtained hydrocarbon stream, with the stream (C5) completely or partially led back to the metathesis step. Independent claims are included for methods for preparing feed stream, comprising subjecting naphtha or other hydrocarbon compounds to steam cracking or fluid catalytic cracking (FCC)-process, or dehydrating butane containing hydrocarbon stream and followed by purifying the obtained C4-olefin-mixture containing isobutene, 2-butene, butadiene, optionally butyne and optionally 1-butene, and removing the obtained stream of C4-olefin-mixture; and removing butadiene and butyne by means of selective hydrogenation to butene or butane hydride, or butadiene and butyne by extractive distillation of the obtained C4-olefin-mixture (raffinate I), where the content of 1,3-butadiene is at a maximum of 1000 wt. ppm.

    PROCESO PARA PREPARAR PROPENO DE CORRIENTES DE ALIMENTACION RICAS EN 2-BUTENO-E ISOBUTENO.

    公开(公告)号:MX2007010286A

    公开(公告)日:2008-04-10

    申请号:MX2007010286

    申请日:2006-02-24

    Applicant: BASF AG

    Abstract: La invencion se relaciona con un metodo para producir un flujo de producto que consiste sustancialmente de eteno (flujo de C2=), un flujo de producto que consiste substancialmente de propeno (flujo C3=), un flujo de producto que consiste substancialmente de isobuteno y, opcionalmente de otras olefinas que tiene 4 atomos de carbono (flujo C4=) y un flujo de producto que consiste substancialmente de 2-metil-2-buteno y, opcionalmente de 2-buteno (flujo C5=), y opcionalmente otro flujo de producto que contiene otros hidrocarburos (flujo Cx), que consiste opcionalmente de varios flujos parciales individuales. El metodo inventivo comprende un paso de metatesis que consiste en llevar un flujo de hidrocarburo de C4 que contiene cuando menos 15% en peso de 2-buteno, por lo menos 5% en peso de isobuteno y cuando menos 5% en peso de 1-buteno (flujo de alimentacion) a contacto con eteno en presencia de un catalizador de metatesis usual, el flujo de hidrocarburo asi formado se separa en los flujos C2=, C3=, C4=, y opcionalmente Cx y el flujo C5= se recicla parcial o totalmente en la etapa de metatesis.

    PROCESO DE METATESIS QUE COMPRENDE LA PURIFICACION DE LOS MATERIALES DE INICIO.

    公开(公告)号:MX2007010290A

    公开(公告)日:2008-03-04

    申请号:MX2007010290

    申请日:2006-02-24

    Applicant: BASF AG

    Abstract: La invencion se refiere a un proceso para producir un compuesto o una mezcla de compuestos que tienen un doble enlace C-C o triple enlace C-C no aromatico (compuesto A) a partir de otro compuesto o una mezcla de otros compuestos que tienen un doble enlace C-C o triple enlace C-C no aromatico (compuesto B), que comprende I. una etapa (I) que consiste en liberar al compuesto (B) de impurezas poniendo en contacto dichas impurezas con un agente de adsorcion que comprende al menos 3% en peso de oxido de aluminio y activandolos a temperaturas de 450 a 1000 degree C (agente de adsorcion X) y II. una etapa (II), que consiste en eliminar las impurezas del compuesto (B) de acuerdo con la etapa (I) y poniendo dicho compuesto B en contacto con un catalizador de metatesis bajo condiciones usuales para una reaccion de metatesis.

    Method for producing alkylaryl compounds

    公开(公告)号:ZA200604943B

    公开(公告)日:2007-12-27

    申请号:ZA200604943

    申请日:2006-06-15

    Applicant: BASF AG

    Abstract: The preparation of alkylaryl compounds takes place by a) reaction of a C 4 /C 5 -olefin mixture over a metathesis catalyst to prepare a C 4-8 -olefin mixture comprising 2-pentene, and optional removal of the C 4-8 -olefin mixture, b) removal of from 5 to 100% of the 2-pentene present in stage a) and subsequent reaction over an isomerization catalyst to give a mixture of 2-pentene and 1-pentene which is returned to stage a), c) dimerization of the C 4-8 -olefin mixture obtained in stage b) following removal in the presence of a dimerization catalyst to give a mixture containing C 8-16 -olefins, removal of these C 8-16 -olefins and optional removal of a partial stream thereof, d) reaction of the c 8-16 -olefin mixtures obtained in stage c) or of the partial stream with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkyl aromatic compounds where, prior to the reaction, 0 to 60% by weight, based on the c 8-16 -olefin mixtures obtained in stage c), of linear olefins may additionally be added, e) optional sulfonation of the alkyl aromatic compounds obtained in stage d) and neutralization to give alkylarylsulfonates, where, prior to the sulfonation, 0 to 60% by weight, based on the alkyl aromatic compounds obtained in stage d), of linear alkylbenzenes may additionally be added if no admixing has taken place in stage d), f) optional mixing of the alkylarylsulfonates obtained in stage e) with 0 to 60% by weight, based on the alkylarylsulfonates obtained in stage e), of linear alkylarylsulfonate, if no admixing has taken place in stages d) and e).

    METHOD FOR PRODUCING DIALDEHYDES AND/OR ETHYLENICALLY UNSATURATED MONOALDEHYDES BY HYDROFORMYLATING ETHYLENICALLY UNSATURATED COMPOUNDS

    公开(公告)号:AU2003267348A1

    公开(公告)日:2004-04-08

    申请号:AU2003267348

    申请日:2003-09-12

    Applicant: BASF AG

    Abstract: A process for the production of dialdehydes and/or ethylenically unsaturated monoaldehydes by reaction of at least one compound having at least two ethylenically unsaturated double bonds with carbon monoxide and hydrogen in the presence of a hydroformylation catalyst comprising at least one complex of a Group VIII metal with at least one ligand comprising a pnicogen chelate compound. A process for the production of dialdehydes and/or ethylenically unsaturated monoaldehydes by reaction of at least one compound having at least two ethylenically unsaturated double bonds with carbon monoxide and hydrogen in the presence of a hydroformylation catalyst comprising at least one complex of a Group VIII metal with at least one ligand comprising a pnicogen chelate compound of formula (1). Q = bridging group of formula (2); A1, A2 = O, S, SiRaRb, NRc or CRdRe; Ra-Rc = H, alkyl, cycloalkyl, heterocycloalkyl, aryl or heteroaryl; Rd, Re = H, alkyl, cycloalkyl, heterocycloalkyl, aryl or heteroaryl or two Rd groups and/or two Re groups form an intermolecular bridging group D; D = bivalent bridging group of formula (3)-(6); R9,R10 = H, alkyl, cycloalkyl, aryl, halo, trifluoromethyl, carboxyl, carboxylate or cyano or together form a 3-4C alkylene bridge; R11-R14 = H, alkyl, cycloalkyl, aryl, halo, trifluoromethyl, COOH, carboxylate, cyano, alkoxy, SO3H, sulfonate, NE1E2, alkylene-NE1E2E3+X-, acyl or nitro; C = 0 or 1; Y = chemical bond; RI-RVI = H, alky, cycloalkyl, heterocycloalkyl, aryl or heteroaryl; COORf, COO-M+, SO3Rf, SO3-M+, NE1E2, NE1E2E3+X-, alkylene-NE1E2E3+X-, ORf, SRf, (CHRgCH2O)xRf, (CH2N(E1))xRf, (CH2CH2N(E1))xRf, halo, trifluoromethyl, nitro, acyl or cyano or 2 neighboring groups, together with two neighboring C atoms of the benzene ring to which they are bonded form a condensed ring system of 1-3 further rings; Rf, E1-E3 = H, alkyl, cycloalkyl or aryl; R9 = H, methyl or ethyl; M+ = cation, X-=anion; x = 1-120; a, b = 0 or 1; Pn = P, As or Sb; R1-R4 = heteroaryl, heteroaryloxy, alkyl, alkoxy, aryl, aryloxy, cycloalkyl, cycloalkoxy, heterocycloalkyl, heterocycloalkoxy or NE1E2 with the proviso that is R1 and R3 are bonded via the N atom to the pnicogen atom bonded pyrrole ring or R1 with R2 and/or R3 together with R4 form a divalent group E of formula Py-I-W or R1 and R2 and/or R3 and R4 form a bispyrrole group of formula Py-I-Py; Py = pyrrole group that is bonded via its N atom to Pn; I = chemical bond, O, S, SiRaRb, NRc, optionally substituted 1-10C alkylene or CRhCRi; W = cycloalkyl, cycloalkoxy, aryl, aryloxy, heteroaryl or heteroaryloxy; Rh and Ri = H, alkyl, cycloalkyl, heterocycloalkyl, aryl or heteroaryl

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