Production of n-alkenylcarboxamide
    1.
    发明专利
    Production of n-alkenylcarboxamide 审中-公开
    N-烷基胆酰胺的生产

    公开(公告)号:JPH11279145A

    公开(公告)日:1999-10-12

    申请号:JP738599

    申请日:1999-01-14

    CPC classification number: C07D207/267 B01J29/061

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an N-alkenylcarboxamide, making it possible to achieve a high conversion and a high selectivity and capable of being performed under the atmospheric pressure, and especially to provide a method for synthesizing N-vinylpyrrolidone(NVP) from N-(2-hydroxyethyl) pyrrolidone(HEP).
    SOLUTION: This method for producing an N-alkenylcarboxamide comprises dehydrating an N-(2-hydroxyalkyl)carboxamide and/or its diether in the presence of a catalyst. Therein, a molecular sieve having a modulus of at least 140, especially zeolite, is used as the catalyst.
    COPYRIGHT: (C)1999,JPO

    Abstract translation: 要解决的问题:为了提供N-烯基羧酰胺的制造方法,可以实现高转化率和高选择性,并且能够在大气压下进行,特别是提供一种合成N-乙烯基吡咯烷酮( NVP)来自N-(2-羟乙基)吡咯烷酮(HEP)。 解决方案:该制备N-链烯基羧酰胺的方法包括在催化剂存在下脱水N-(2-羟基烷基)甲酰胺和/或其二醚。 其中,使用模量为至少140的分子筛,特别是沸石,作为催化剂。

    2.
    发明专利
    未知

    公开(公告)号:DE19704482A1

    公开(公告)日:1998-08-13

    申请号:DE19704482

    申请日:1997-02-06

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing halogen-free, reactive polyisobutene with a terminal double-bond content of over 50 mol % and an average molecular weight of 2,800 - 10,000 Dalton by cationic polymerization of isobutene or isobutene-containing hydrocarbon mixtures in a liquid phase, wherein polmerization is carried out at a temperature of -30 DEG C to +40 DEG C in the presence of a heterogeneous polymerization catalyst from one or several oxides of the elements of the 5th and 6th subgroup of the periodic table of elements or in the presence of a heterogeneous polymerization catalyst containing one or more oxidic compounds of one or more elements of the 5th and 6th subgroup of the periodic table of elements on an oxygen-containing zircon compound of various non-zeolitic oxidic supporting material, wherein said catalyst contains no technically active quantities of halogen.

    PROCESS FOR THE PREPARATION OF ALKYLARYL COMPOUNDS

    公开(公告)号:MY136695A

    公开(公告)日:2008-11-28

    申请号:MYPI20045180

    申请日:2004-12-16

    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).

    4.
    发明专利
    未知

    公开(公告)号:DE19734176A1

    公开(公告)日:1999-02-11

    申请号:DE19734176

    申请日:1997-08-07

    Applicant: BASF AG

    Abstract: A process is disclosed for preparing halogen-free, reactive polyisobutylene with a content of terminal double bonds of more than 50 % by moles and an average molecular weight Mn of 500 to 5000 daltons by cationic polymerisation of isobutylene or isobutylene-containing hydrocarbon mixtures in the liquid phase. Polymerisation is carried out at a temperature of between -40 and +10 DEG C in the presence of a molybdate or wolframate heteropolyacid.

    METHODS FOR PRODUCING ALKYLARYL SULFONATES BY USING MODIFIED DIMERIZED OLEFINS

    公开(公告)号:MY135566A

    公开(公告)日:2008-05-30

    申请号:MYPI20034950

    申请日:2003-12-22

    Applicant: BASF AG

    Abstract: THE INVENTION RELATES TO PROCESSES FOR THE PREPARATION OF ALKYLARYLSULFONATES BY A) REACTION OF A C4-OLEFIN MIXTURE OVER A METATHESIS CATALYST TO PREPARE 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) IN THE PRESENCE OF A DIMERIZATION CATALYST TO GIVE A MIXTURE COMPRISING C10-12-OLEFINS AND OPTIONAL REMOVAL OF THE C10-12-OLEFINS, C) REACTION OF THE C10-12 MIXTURES OBTAINED IN STAGE B) WITH AN AROMATIC HYDROCARBON IN THE PRESENCE OF AN ALKYLATION CATALYST TO FORM ALKYL AROMATIC COMPOUNDS, WHERE, PRIOR TO THE REACTION, ADDITIONAL LINEAR OLEFINS MAY BE ADDED,D) SULFONATION OF THE ALKYL AROMATIC 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.

    8.
    发明专利
    未知

    公开(公告)号:DE19753301A1

    公开(公告)日:1999-06-02

    申请号:DE19753301

    申请日:1997-12-01

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing lactams by means of cyclizing hydrolysis of aminonitriles with water in the gas-phase on catalysts which contain oxides or mixed oxides of metals of groups 3, 4, 5, 13 and/or 14 of the periodic table, and optionally one additional metal oxide of groups 6, 7, 8, 9 and/or 10. In addition, the catalysts comprise a phosphate, carbonate, silicate, arsenite, arsenate, antimonite, antimonate and/or nitrate of the aforementioned metals and/or a sulfate of the aforementioned metals when metal oxides of groups 6, 7, 8, 9 or 10 are present.

    9.
    发明专利
    未知

    公开(公告)号:DE19740539A1

    公开(公告)日:1999-03-18

    申请号:DE19740539

    申请日:1997-09-15

    Applicant: BASF AG

    Abstract: The catalyst contains an alkali metal on a doped carrier prepared from a zirconium and/or alkaline earth metal compound as carrier and an alkali metal compound as dopant . The catalyst is prepared by: (a) mixing a zirconium and/or alkaline earth metal compound as carrier and an alkali metal compound as dopant; (b) calcining the doped carrier produced; and (c) applying an alkali metal to the calcined doped carrier by carrying the melted alkali metal, or impregnating the carrier with solutions of an alkali metal azide, drying the carrier, and decomposing the alkali metal azide, or vaporising the alkali metal onto the carrier, or impregnating the carrier with ammonia-alkali solutions of alkali metal and removing the ammonia.

Patent Agency Ranking