91.
    发明专利
    未知

    公开(公告)号:BRPI0506587A

    公开(公告)日:2007-05-02

    申请号:BRPI0506587

    申请日:2005-01-27

    Applicant: BASF AG

    Abstract: A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) reacting 1,3-butadiene with hydrogen cyanide over at least one catalyst to obtain a stream 1 which comprises 3-pentenenitrile, 2-methyl-3-butenenitrile, the at least one catalyst and 1,3-butadiene, (b) distilling stream 1 in a column to obtain a high-1,3-butadiene stream 2 as the top product and a low-1,3-butadiene stream 3 as the bottom product which comprises 3-pentenenitrile, the at least one catalyst and 2-methyl-3-butenenitrile, (c) distilling stream 3 in a column to obtain a stream 4 as the top product which comprises 1,3-butadiene, a stream 5 which comprises 3-pentenenitrile and 2-methyl-3-butenenitrile at a side draw of the column, and a stream 6 as the bottom product which comprises the at least one catalyst, (d) distilling stream 5 to obtain a stream 7 as the top product which comprises 2-methyl-3-butenenitrile, and a stream 8 as the bottom product which comprises 3-pentenenitrile.

    92.
    发明专利
    未知

    公开(公告)号:DE502004003136D1

    公开(公告)日:2007-04-19

    申请号:DE502004003136

    申请日:2004-03-24

    Applicant: BASF AG

    Abstract: A system which is suitable as a catalyst for the hydrocyanation of olefinically unsaturated compounds and comprises a) Ni(0) b) a compound which complexes Ni(0) as a ligand and contains trivalent phosphorus, c) a Lewis acid and d) a compound of the formula M Rn where M: Al or Ti R: identical or different monovalent alkoxy radicals, in which case a plurality of alkoxy radicals may be bonded together, and additionally, in the case that M=Al, R may be identical or different monovalent alkyl radicals, in which case a plurality of alkyl radicals may be bonded together or one or more alkyl radicals may be bonded to one or more of the abovementioned alkoxy radicals, n: valency of M, and processes for hydrocyanating an olefinically unsaturated compound in the presence of such a system.

    93.
    发明专利
    未知

    公开(公告)号:BRPI0506581A

    公开(公告)日:2007-04-10

    申请号:BRPI0506581

    申请日:2005-01-27

    Applicant: BASF AG

    Abstract: An adiponitrile/methylglutaronitrile preparation process includes distilling a reaction stream to obtain stream 3 depleted in pentenenitriles (bottom product) and stream 4 enriched in pentenenitriles (top product); extracting stream 3 obtaining stream 6 enriched with extractant (top product) and stream 7 depleted in extractant (bottom product); distilling stream 6 obtaining stream 8 comprising the catalyst (bottom product) and stream 9 comprising the extractant (top product); distilling stream 7 obtaining stream 10 (bottom product) and stream 11 comprising the extractant (top product); distilling stream 10 obtaining stream 12 comprising catalyst degradation products, at least one promotor, adiponitrile and methylglutaronitrile (bottom product) and stream 13 comprising pentenenitriles (top product); distilling stream 12 obtaining stream 14 comprising catalyst degradation products and the promotor(s) (bottom product) and stream 15 comprising adiponitrile and methylglutaronitrile (top product); distilling stream 15 obtaining stream 16 comprising adiponitrile (bottom product) and stream 17 comprising methylglutaronitrile (top product).

    PHOSPHITE
    96.
    发明专利

    公开(公告)号:DE50012997D1

    公开(公告)日:2006-07-27

    申请号:DE50012997

    申请日:2000-10-25

    Applicant: BASF AG

    Abstract: New phosphites (I), with alkylaryl, arylaryl and/or condensed aryl groups, have 1, 2 or 3 o-substituted and optionally 1 or 2 m- and/or p-substituted aryl groups. New phosphites of formula (I), with alkylaryl, arylaryl and/or condensed aryl groups, have 1, 2 or 3 o-substituted and optionally 1 or 2 m- and/or p-substituted aryl groups; P(O-R 1>)(O-R 2>) y(O-R 3>) z(O-R 4>) p (I) R 1>an aromatic group with a 1-18 carbon (C) alkyl, an aromatic substituent or a condensed aromatic system in the o-position to the oxygen (O) atom linking the phosphorus (P) atoms to the aromatic system; R 2>a similar aromatic group substituted in the m-position; R 3>a similar aromatic group substituted in the p-position; R 4>an aromatic group with a different substituent in the o-, m- or p-position and a hydrogen (H) atom in the o-position; x : 1 or 2; y, z, p : 0, 1 or 2; (x+y+z+p) : 3 Independent claims are also included for: (a) new transition metal complexes (II) with (I) as ligand; (b) the preparation of (I); (c) the preparation of (II); (d) the addition of hydrogen cyanide to an olefinic double bond in the presence of (II) as catalyst; and (e) the isomerization of organic nitriles in the presence of (II) as catalyst.

    PROCEDIMIENTO PARA LA PREPARACION DE PENTENONITRILO LINEAL

    公开(公告)号:AR048221A1

    公开(公告)日:2006-04-12

    申请号:ARP050100304

    申请日:2005-01-28

    Applicant: BASF AG

    Abstract: Se describe un procedimiento para la produccion de 3-pentenonitrilo, caracteriado porque los siguientes pasos del, procedimiento: (a) isomerizacion de una corriente de eductos que contiene 2-metil-3-butenonitrilo, por lo menos un catalizador de isomerizacion, disuelto o disperso, de manera de obtener una corriente 1, que contiene por lo menos un catalizador de isomerizacion, 2-metil-3-butenonitrilo, 3-pentenonitrilo y (Z)-2-metil-2-butenonitrilo; (b) destilacion de la corriente 1 con lo cual se obtiene una corriente 2 como producto de cabeza, que contiene 2-metil-3-butenonitrilo, 3-pentenonitrilo y (Z)-2-metil-2-butenonitrilo, y una corriente 3 como producto de descarga, que contiene por lo menos un catalizador de isomerizacion; (c) destilacion de la corriente 2, con lo cual se obtiene una corriente 4 como producto de cabeza que con respecto a la corriente 2 se ha enriquecido en (Z)-2-metil-2-butenonitrilo, referido a la suma de todos los pentenonitrilos en la corriente 2, y una corriente 5 como producto de descarga que con respecto a la corriente 2 se ha enriquecido en 3-pentenonitrilo y 2-metil-3-butenonitrilo, referido a la suma de todos los pentenonitrilos en la corriente 2; (d) destilacion de la corriente 5, con lo cual se obtiene una corriente 6 como producto de descarga que contiene 3-pentenonitrilo, y una corriente 7 como producto de cabeza que contiene 2-metil-3-butenonitrilo.

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