12.
    发明专利
    未知

    公开(公告)号:ES2145941T3

    公开(公告)日:2000-07-16

    申请号:ES95941718

    申请日:1995-12-16

    Applicant: BASF AG

    Abstract: Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which (a) contains a compound based on a metal selected from the group consisting of nickel, cobalt, iron, ruthenium and rhodium and (b) contains from 0.01 to 25% by weight, based on (a), of a promoter based on a metal selected from the group consisting of palladium, platinum, iridium, osmium, copper, silver, gold, chromium, molybdenum, tungsten, manganese, rhenium, zinc, cadmium, lead, aluminum, tin, phosphorus, arsenic, antimony, bismuth and rare earth metals and (c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or on an alkaline earth metal. with the proviso that the component (a) is not based on iron or iron and one of the metals selected from the group consisting of cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group consisting of titanium, manganese, chromium and molybdenum, and with the further proviso that, when a compound based on only ruthenium or rhodium or ruthenium and rhodium or nickel and rhodium is selected as component (a), the promoter (b) may be dispensed with.

    Process for producing caprolactam
    13.
    发明专利

    公开(公告)号:NZ308486A

    公开(公告)日:2000-01-28

    申请号:NZ30848696

    申请日:1996-05-07

    Applicant: BASF AG

    Abstract: he production of caprolactam by reacting 6-amino capronitrile with water in the presence of catalysts, using an initial mixture of 6-amino capronitrile and the tetrahydroazepine derivative of formula (I) above, and reaction in the liquid phase in the presence of heterogeneous catalysts, and a process for producing tetrahydroazepine derivative (I) and its use for making caprolactam. Divisional filed as 500058

    14.
    发明专利
    未知

    公开(公告)号:DK0763030T3

    公开(公告)日:1999-08-30

    申请号:DK95921795

    申请日:1995-05-31

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/02071 Sec. 371 Date Feb. 20, 1997 Sec. 102(e) Date Feb. 20, 1997 PCT Filed May 31, 1995 PCT Pub. No. WO95/33741 PCT Pub. Date Dec. 14, 1995Preparation of heterocyclic aldehydes I (I) (A, B=optionally substituted methylene groups; +E,uns m+EE , +E,uns n+EE =1 to 5; +E,uns m+EE ++E,uns n+EE >2), by hydrogenation of carboxylic acids IIa (IIa) or one of their esters IIb derived from a C1-C10 alcohol, at a temperature of from 200 DEG to 450 DEG C. over a catalyst. The end products are suitable as intermediates for herbicides of the cyclohexanone class.

    15.
    发明专利
    未知

    公开(公告)号:BR9711018A

    公开(公告)日:1999-08-17

    申请号:BR9711018

    申请日:1997-07-23

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP97/03987 Sec. 371 Date Feb. 1, 1999 Sec. 102(e) Date Feb. 1, 1999 PCT Filed Jul. 23, 1997 PCT Pub. No. WO98/05631 PCT Pub. Date Feb. 12, 1998The invention concerns a process for the preparation of 6-aminocapronitrile or 6-aminocapronitrile-hexamethylene diamine mixtures by: a) reacting 5-formylvaleronitrile with ammonia and hydrogen in the presence of hydrogenation catalysts selected from the group consisting of metals or metal compounds rhenium, copper and elements of group VIII of the periodic table of elements, a hydrogenation discharge product being obtained; and b) extracting from the hydrogenation discharge product 6-aminocapronitrile and optionally hexamethylene diamine, provided that the hydrogenation catalyst does not contain copper, nickel or copper and nickel as it's only components.

    17.
    发明专利
    未知

    公开(公告)号:ID21149A

    公开(公告)日:1999-04-29

    申请号:ID973143

    申请日:1997-09-10

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP97/04547 Sec. 371 Date Jan. 7, 1999 Sec. 102(e) Date Jan. 7, 1999 PCT Filed Aug. 21, 1997 PCT Pub. No. WO98/11058 PCT Pub. Date Mar. 19, 1998A catalyst suitable for preparing aliphatic alpha, omega-aminonitriles by partial hydrogenation of aliphatic dinitriles comprises (a) metallic cobalt, a cobalt compound or a mixture thereof, the proportion of metallic cobalt based on (a) being from 20 to 100% by weight, (b) from 10 to 70% by weight, based on (a), of metallic iron, iron oxide, a further iron compound or a mixture thereof, the proportion of iron oxide based on (b) being from 20 to 100% by weight, (c) from 0 to 1% by weight, based on (a), of a compound based on an alkali metal, an alkaline earth metal or zinc.

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