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    Preparation of lactam by gas phase cyclizing hydrolysis of aminonitrile, useful e.g. as solvent and in polyamide production
    31.
    发明专利
    Preparation of lactam by gas phase cyclizing hydrolysis of aminonitrile, useful e.g. as solvent and in polyamide production 未知

    公开(公告)号：DE19811880A1

    公开(公告)日：1999-09-23

    申请号：DE19811880

    申请日：1998-03-18

    Applicant: BASF AG

    Inventor： EIERMANN MATTHIAS ,  BOHNSACK ANDREAS ,  FLICK KLEMENS

    IPC: C07D201/08 ,  B01J27/18 ,  C07D213/61 ,  C07D277/32 ,  C07D223/10

    Abstract: Preparation of lactams by gas phase cyclizing hydrolysis of aminonitriles is carried out in the presence of a metal phosphate catalyst comprising oligophosphate(s) (I) of group 3 and/or 4 metal(s), including lanthanide(s), and optionally their salt(s) (II) with an inorganic acid. Preparation of lactams by gas phase cyclizing hydrolysis of aminonitriles is carried out in the presence of a metal phosphate catalyst comprising oligophosphate(s) of formula M(POa)b (I) of group 3 and/or 4 metal(s), including lanthanide(s), and optionally their salt(s) (II) with an inorganic acid; M = a group 3 or 4 metal, including lanthanides; a = 2.5-4.0; b = a value giving a neutral charge. Independent claims are also included for (a) the preparation of the catalyst; and (b) the use of (I) and optionally (II) as catalysts in this process, especially in caprolactam production.

    METHOD FOR PRODUCING LACTAMS
    32.
    发明专利
    METHOD FOR PRODUCING LACTAMS 未知

    公开(公告)号：CA2311668A1

    公开(公告)日：1999-06-10

    申请号：CA2311668

    申请日：1998-11-30

    Applicant: BASF AG

    Inventor： EIERMANN MATTHIAS ,  NARBESHUBER THOMAS

    IPC: B01J23/00 ,  B01J27/18 ,  B01J27/187 ,  C07D201/08

    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.

    Method of producing alkane sulfonic acid
    35.
    发明专利
    Method of producing alkane sulfonic acid 未知

    公开(公告)号：IN725CH2001A

    公开(公告)日：2006-08-25

    申请号：IN725CH2001

    申请日：2001-05-25

    Applicant: BASF AG

    Inventor： EIERMANN MATTHIAS ,  TRAGUT CHRISTIAN ,  EBEL KLAUS

    IPC: C07C303/16 ,  C07C309/04

    Abstract: The invention relates to a process for the prepartaion of alkanesulfonic acids, comprising the following steps:(a) oxidation of alkylmercaptans and/or dialkyl disulfides and/or dialkyl polysulfides having from three to nine sulfur atoms with nitric acid to form alkanesulfonic acids, water, nitrogen oxides and other byproducts,(b) regeneration of the nitrogen oxides obtained from step (a) with oxygen to give nitric acid and recycling of the nitric acid to step (a),where steps (a) and (b) are carried out in reaction chambers separate from one another.

    METHOD FOR PRODUCING LACTAMS.
    36.
    发明专利
    METHOD FOR PRODUCING LACTAMS. 未知

    公开(公告)号：MY120061A

    公开(公告)日：2005-08-30

    申请号：MYPI9805372

    申请日：1998-11-27

    Applicant: BASF AG

    Inventor： EIERMANN MATTHIAS ,  NARBESHUBER THOMAS

    IPC: C07D201/08 ,  B01J23/00 ,  B01J27/18 ,  B01J27/187

    Abstract: THE INVENTION RELATES TO A PROCESS FOR PREPARING LACTAMS BY CYCLIZING HYDROLYSIS OF AMINO NITRILES WITH WATER IN THE GAS PHASE ON CATALYST WHICH COMPRISE OXIDES OR MIXED OXIDES OF THE METALS OF GROUPS 3, 4, 5, 13 AND/OR 14 OF THE PERIODIC TABLE, WHERE APPROPRIATE IN ADDITION A METAL OXIDE OF GROUPS 6, 7, 8, 9 AND/OR 10 AND FURTHER COMPRISE A PHOSPHATE, CARBONATE, SILICATE, ARSENITE, ARSENATE, ANTIMONITE, ANTIMONATE AND/OR NITRATE OF SAID METALS AND/OR, IF METAL OXIDES OF GROUPS 6, 7, 8, 9 OR 10 ARE PRESENT, A SULFATE OF THE ABOVEMENTIONED METALS.

    38.
    发明专利
    未知

    公开(公告)号：ES2198798T3

    公开(公告)日：2004-02-01

    申请号：ES99102630

    申请日：1999-02-11

    Applicant: BASF AG

    Inventor： EIERMANN MATTHIAS ,  EBEL KLAUS ,  BOTZEM JORG

    IPC: B01J27/182 ,  C07B61/00 ,  C07C45/52 ,  C07C45/65 ,  C07C45/66 ,  C07C45/67 ,  C07C45/82 ,  C07C49/587 ,  C07C49/593 ,  C07C49/597 ,  C07C49/603 ,  C07C49/607 ,  C25B3/23 ,  C25B3/02

    Abstract: Preparation of 2-cycloalkenones (I) comprises subjecting 2-alkoxycycloalkanones (II) and/or 2-hydroxycycloalkanone ketals (III) to a gas-phase elimination reaction in the presence of an acidic heterogeneous catalyst. Preparation of 2-cycloalkenones of formula (I) comprises subjecting 2-alkoxycycloalkanones of formula (II) and/or 2-hydroxycycloalkanone ketals of formula (III) to a gas-phase elimination reaction in the presence of an acidic heterogeneous catalyst: n = 0-20; m = 0-3; R = alkyl, alkylaryl, aryl, arylalkyl, alkenyl or alkynyl, where the aryl groups are optionally substituted by 1-2 of alkyl, OH and alkoxy; R' = alkyl or alkenyl, or R'+R' = 1-5C alkylene or 2-5C alkenylene.

    METHOD OF PRODUCING ALKANE SULFONIC ACID
    40.
    发明专利
    METHOD OF PRODUCING ALKANE SULFONIC ACID 未知

    公开(公告)号：SK7152001A3

    公开(公告)日：2002-01-07

    申请号：SK7152001

    申请日：1999-11-22

    Applicant: BASF AG

    Inventor： EIERMANN MATTHIAS ,  TRAGUT CHRISTIAN ,  EBEL KLAUS

    IPC: C07C303/16 ,  C07C309/04

    Abstract: The invention relates to a process for the prepartaion of alkanesulfonic acids, comprising the following steps:(a) oxidation of alkylmercaptans and/or dialkyl disulfides and/or dialkyl polysulfides having from three to nine sulfur atoms with nitric acid to form alkanesulfonic acids, water, nitrogen oxides and other byproducts,(b) regeneration of the nitrogen oxides obtained from step (a) with oxygen to give nitric acid and recycling of the nitric acid to step (a),where steps (a) and (b) are carried out in reaction chambers separate from one another.

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