中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

59 records (took 0.023 seconds)

    Manufacture of ethylbenzene
    1.
    发明授权
    Manufacture of ethylbenzene 失效
    制造乙苯

    公开(公告)号：US3903185A

    公开(公告)日：1975-09-02

    申请号：US41625973

    申请日：1973-11-15

    Applicant: BASF AG

    Inventor： VOGEL HANS-HENNING ,  WEITZ HANS-MARTIN ,  LORENZ ERNST ,  PLATZ ROLF

    IPC: C07C5/333 ,  B01J23/00 ,  C07B61/00 ,  C07C1/00 ,  C07C5/367 ,  C07C5/387 ,  C07C15/073 ,  C07C67/00 ,  C07C5/24

    CPC classification number: C07C5/367 ,  C07C15/073

    Abstract: A method of manufacturing ethylbenzene in high yield by catalytic aromatization of the C8-cycloolefins obtained in the dimerization of unsaturated C4-hydrocarbons is described. Byproducts attributable to cracking, isomerization and decomposition of the raw material into its starting materials are virtually not detectable in the reaction product. The aromatization product can therefore be converted to styrene without prior distillation or purification.

    Abstract translation: 描述了通过在不饱和C4烃的二聚中获得的C8-环烯烃的催化芳构化而以高产率制备乙苯的方法。 归因于原料裂解，异构化和分解成其原料的副产物实际上在反应产物中不可检测。 因此，芳构化产物可以在没有事先蒸馏或纯化的情况下转化为苯乙烯。

    5.
    发明专利
    未知

    公开(公告)号：NO910795L

    公开(公告)日：1991-08-29

    申请号：NO910795

    申请日：1991-02-27

    Applicant: BASF AG

    Inventor： FIKENTSCHER ROLF ,  OPPENLAENDER KNUT ,  DIX JOHANNES PETER ,  SAGER WILFRIED ,  VOGEL HANS-HENNING ,  ELFERS GUENTHER

    IPC: B01D17/05 ,  C08G65/48 ,  C08G71/00 ,  C09K23/00 ,  C08G71/02 ,  C08G71/04 ,  C10G33/04

    Abstract: The present invention relates to methods of demulsifying employing condensates as demulsifiers for oil-in-water emulsions and prepared from A) a precondensate from one or more trialkanolamines of the general formula I (I) in which R1 to R3 denote the same or different 1,2-alkylene groups of from 2 to 4 carbon atoms, and B) from 0.1 to 30% w/w, based on said precondensate, of one or more of the following compounds II: a) urea or a urea derivative of the general formula IIa (IIa) b) a urea derivative of the general formula IIb (IIb) c) a urethane of the general formula IIc (IIc) and/or d) a urethane of the general formula IId (IId) in which R1 is hydrogen, C1-C20-alkyl or C2-C20-alkenyl, R2 and R3 are the same or different and denote hydrogen or C1-C4-alkyl, R4 is C1-C4-alkyl and R5 is C1-C12-alkylene.

    6.
    发明专利
    未知

    公开(公告)号：NO20031040L

    公开(公告)日：2003-05-06

    申请号：NO20031040

    申请日：2003-03-06

    Applicant: BASF AG

    Inventor： WITTOWSKI LARS ,  NOUWEN JAN ,  VOGEL HANS-HENNING ,  EISENBEIS ANSGAR

    IPC: C10L1/22 ,  C08F8/32 ,  C10L1/2383 ,  C10M149/04 ,  C10N30/04 ,  C10N30/12 ,  D06M15/267 ,  C08F

    Abstract: Compounds which contain one or more groups of the formula (I) -CH2-CH(NR R )- (I)where R and R , independently of one another, are each hydrogen, C1-20-alkyl, C6-18-aryl, C7-20-alkaryl, C7-20-aralkyl or a polyamine radical, are prepared by reductive amination of compounds which contain one or more groups of the formula (II) -CH2-CH(O-C(O)-R )- (II)where R is hydrogen, C1-20-alkyl, C6-18-aryl, C7-20-alkaryl or C7-20-aralkyl, with amines of the formula (III) HNR R (III)and hydrogen.

    7.
    发明专利
    未知

    公开(公告)号：NO179212B

    公开(公告)日：1996-05-20

    申请号：NO910795

    申请日：1991-02-27

    Applicant: BASF AG

    Inventor： FIKENTSCHER ROLF ,  OPPENLAENDER KNUT ,  DIX JOHANNES PETER ,  SAGER WILFRIED ,  VOGEL HANS-HENNING ,  ELFERS GUENTHER

    IPC: B01D17/05 ,  C08G65/48 ,  C08G71/00 ,  C09K23/00 ,  C08G71/02 ,  C08G71/04 ,  C10G33/04

    Abstract: The present invention relates to methods of demulsifying employing condensates as demulsifiers for oil-in-water emulsions and prepared from A) a precondensate from one or more trialkanolamines of the general formula I (I) in which R1 to R3 denote the same or different 1,2-alkylene groups of from 2 to 4 carbon atoms, and B) from 0.1 to 30% w/w, based on said precondensate, of one or more of the following compounds II: a) urea or a urea derivative of the general formula IIa (IIa) b) a urea derivative of the general formula IIb (IIb) c) a urethane of the general formula IIc (IIc) and/or d) a urethane of the general formula IId (IId) in which R1 is hydrogen, C1-C20-alkyl or C2-C20-alkenyl, R2 and R3 are the same or different and denote hydrogen or C1-C4-alkyl, R4 is C1-C4-alkyl and R5 is C1-C12-alkylene.

    8.
    发明专利
    未知

    公开(公告)号：NO960524L

    公开(公告)日：1996-02-09

    申请号：NO960524

    申请日：1996-02-09

    Applicant: BASF AG

    Inventor： FAUL DIETER ,  ROSER JOACHIM ,  HARTMANN HEINRICH ,  VOGEL HANS-HENNING ,  SLOTMAN WILHELMUS ,  KONRAD GERD

    IPC: B01D17/04 ,  C08F8/14 ,  C08F220/26 ,  C08F290/06 ,  C08G63/676 ,  C08G65/32 ,  C08G65/332 ,  C09K8/36 ,  C10G33/04

    Abstract: PCT No. PCT/EP94/02487 Sec. 371 Date Feb. 7, 1996 Sec. 102(e) Date Feb. 7, 1996 PCT Filed Jul. 28, 1994 PCT Pub. No. WO95/04771 PCT Pub. Date Feb. 16, 1995Reaction products which are suitable as demulsifiers for crude oil emulsions, comprise olefinically unsaturated carboxylic acids and polyetherols and are obtainable by A) condensation of one or more unsaturated C3-C10-carboxylic acids or their derivatives of the general formula I I where R1 and R2 are each hydrogen, C1-C4-alkyl or carboxyl, R3 is hydrogen or methyl and R1 together with the carboxyl group may form a 5-membered or 6-membered anhydride ring, with a polyetherol of the general formula II II where R4 is a radical of a monohydric or polyhydric alcohol or of a phenol or of an alkylphenol of 7 to 30 carbon atoms or a radical of an alkylphenol/formaldehyde or alkylphenol/acetaldehyde condensate, R5 is a branched or straight-chain C2-C4-alkylene group, where different units [R5-O] may be present within a polyalkylene oxide chain, and X is an integer of from 5 to 120, in a molar ratio of compounds II to I of from 2:1 to 10:1 and in a weight ratio of from 25:1 to 1,000:1, B) polymerization of the resulting condensate with one or more unsaturated carboxylic acids I and, if required, further olefinically unsaturated monomers copolymerizable with the carboxylic acids I, the amount of the carboxylic acids I being from 50 to 100 mol %, based on the amount of the olefinically unsaturated monomers, and the molar ratio of the polyetherol II to the sum of the olefinically unsaturated monomers used in process steps A) and B) being from 1:5 to 1:200, and subsequent C) condensation of the resulting reaction mixture, with the proviso that not all hydroxyl groups are converted, and a process for their preparation, mixtures of the reaction products with organic solvents and the use of the reaction products and of the mixtures as demulsifiers for crude oil emulsions.

Patent Agency Ranking