Patents by Inventor Werner Aquila

Werner Aquila has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5998680
    Abstract: Allyl alcohols are isomerized in aqueous solution in the presence of protonic acids, with the pH of the reaction mixture being adjusted to the range from 2 to 5 with an acid concentration below 0.16 mol per liter of the reaction mixture or with a buffer which comprises the protonic acid.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: December 7, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Kiefer, Wolfgang Siegel, Jorg Therre, Melanie Pahl, Werner Aquila, Ulrich Schafer-Luderssen, Udo Rheude
  • Patent number: 5196609
    Abstract: The preparation of 3-alkoxycarbonyl propenals and 3-dialkoxymethyl propenals of the general formulae Ia and Ib respectively: ##STR1## (R.sup.1 =C.sub.1 -C.sub.3 -alkyl group; R.sup.2 and R.sup.3 =hydrogen, methyl, or ethyl; and R.sup.4 and R.sup.5 =C.sub.1 -C.sub.4 -alkyl groups, which may be joined to form a 5-membered or 6-membered ring), is effected by reacting a corresponding alcohol of the general formula IIa or IIb ##STR2## with oxygen or an oxygen-containing gas in the gas phase in the presence of a metal from Group IB of the Periodic Table or a compound of one such metal acting as catalyst.The target products serve as intermediates for the synthesis of carotenoids.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: March 23, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Aquila, Hans-Ulrich Scholz, Hartwig Fuchs, Wolfgang Krause, Joachim Paust, Werner Hoffmann
  • Patent number: 5149884
    Abstract: In a tube bundle reactor for carrying out catalytic organic reactions in the gas phase, comprising reaction tubes (A) arranged between tubesheets (B), the reaction tubes have an inside diameter ranging from 0.5 to 3 cm, the ratio of reaction tube length to inside diameter ranges from 2 to 10, and the reaction tubes (A) are surrounded by a fluid heat transport medium flowing in the crosswise direction; said tube bundle reactor is useful in particular in exothermic organic reactions.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: September 22, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Brenner, Wilhelm Ruppel, Otto Woerz, Klaus Halbritter, Hans-Juergen Scheiper, Werner Aquila, Hartwig Fuchs
  • Patent number: 4720327
    Abstract: Distillative separation of liquid mixtures of one or more water-insoluble substances which have boiling points higher than that of water and one or more substances which have boiling points lower than that of water or which form azeotropes having boiling points lower than that of water, wherein the mixture to be distilled is mixed with a quantity of water such that the boiling point of the water under the pressure applied limits the bottom temperature of the mixture of substances to be separated.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: January 19, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Aquila, Axel Nissen, Gerd Kaibel, Michael Horner, Walter Rebafka
  • Patent number: 4440960
    Abstract: A process for the continuous preparation of 3-alkyl-buten-1-als by oxidative dehydrogenation of 3-alkyl-buten-1-ols at from to C. with oxygen over a catalyst containing copper and/or silver, wherein, within one second after contact with the catalyst, the vaporous reaction mixture, which is at from to C., is brought into contact with a liquid comprising water and/or the condensed reaction mixture at from to C., and the 3-alkyl-buten-1-als are separated off from the resulting condensate.
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: April 3, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Sauer, Werner Aquila, Wolfgang Hoffmann, Karl Brenner, Klaus Halbritter
  • Patent number: 4288636
    Abstract: Citral (I) ##STR1## is prepared by heating an acetal (IIa) or (IIb) ##STR2## in the presence of an acid catalyst while continuously distilling from the reaction mixture the 3-methylbut-2-en-1-ol (III, prenol) eliminated during the reaction.
    Type: Grant
    Filed: June 10, 1980
    Date of Patent: September 8, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Axel Nissen, Walter Rebafka, Werner Aquila
  • Patent number: 4113781
    Abstract: Substituted phenylpropanals and a process for their manufacture by reaction of the corresponding phenylethenes with carbon monoxide and hydrogen at temperatures of from to C and pressures of from 20 to 1,500 atmospheres gauge, in the presence of rhodium carbonyl complexes. The phenylpropanals according to the invention have pleasant scents. 3-(4-Isopropyl-phenyl)-butanal-1 and 3-(4-tert.-butyl-phenyl)-butanal-1, in particular, have suitable scents for the preparation of flower oil. They are also valuable starting materials for synthesizing drugs, plant protection agents and dyes.
    Type: Grant
    Filed: August 5, 1974
    Date of Patent: September 12, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Aquila, Werner Hoffmann, Walter Himmele, Hardo Siegel
  • Patent number: 3966827
    Abstract: The production of 3-methylpentane-1,5-diol by hydroformylation of 2-methylbut-1-en-4-ol with carbon monoxide and hydrogen at elevated temperature and superatmospheric pressure in the presence of a rhodium carbonyl complex which has been modified by a tertiary organic phosphine followed by hydrogenation of the 2-hydroxy-4-methyltetrahydropyran at elevated temperature and superatmospheric pressure in the presence of a hydrogenation catalyst.
    Type: Grant
    Filed: January 16, 1975
    Date of Patent: June 29, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Aquila, Walter Himmele, Werner Fliege, Hardo Siegel