Patents by Inventor Quido Smejkal

Quido Smejkal 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: 7160524
    Abstract: The invention relates to an apparatus for the production of butylacetate by esterification of acetic acid with butanol in the presence of a solid acidic catalyst in which distillatory separation of components runs simultaneously with esterification. Thus, acetic acid and butanol are introduced in defined amounts and in the molar ratio 1:1 to 1:10 into a system, in which the reaction and the distillatory separation proceeds in three zones. The reaction together with distillatory separation of the components with different boiling points run in the reaction zone, while only distillation takes place in lower and upper separation zones. A volatile mixture is separated in the upper separation zone, from which, after being cooled at 5 to 80° C., water and organic phases are separated, the latest being refluxed into the system. The ratio of the feed amount to the organic phase reflux amount is 1:1 to 1:20, the reflux amount representing 60 to 100% of the whole amount of the organic phase.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: January 9, 2007
    Assignees: Sulzer Chemtech AG, Chemopetrol, a.s.
    Inventors: Jaromír Lederer, Jirí Kolena, Jirí Hanika, Pavel Morávek, Quido Smejkal, Vladimír Macek, Willem Levering, Oliver Bailer
  • Patent number: 6693213
    Abstract: The invention relates to a method of producing ethyl acetate by reaction of ethyl alcohol with acetic acid and/or acetic anhydride in the presence of a solid acidic catalyst accompanied by simultaneous distillation separation of reaction components, in which acetic acid or acetic anhydride or a mixture thereof and ethyl alcohol, respectively, are introduced separately in a molar ratio of 2:1 to 1:2.5 and in a defined quantity, per unit volume of catalyst, into a system separated into three zones, whereby, in the reaction zone, the reaction runs simultaneously with distillation separation of components, acetic acid feed is introduced into the reaction zone or above the zone and ethyl alcohol feed is introduced into the reaction zone or below this zone; in the upper separation zone, the volatile mixture is separated; thereafter, it is cooled to 5 to 70° C.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: February 17, 2004
    Assignee: Sulzer Chemtech AG
    Inventors: Jiri Kolena, Jaromir Lederer, Pavel Morávek, Jiri Hanika, Quido Smejkal, David Skála
  • Publication number: 20020183545
    Abstract: The invention relates to a process of butylacetate production by esterification of acetic acid with butanol in the presence of a solid acidic catalyst in which distillatory separation of components runs simultaneously with esterification. Thus, acetic acid and butanol are introduced in defined amounts and in the molar ratio 1:1 to 1:10 into a system, in which the reaction and the distillatory separation proceeds in three zones. The reaction together with distillatory separation of the components with different boiling points run in the reaction zone, while only distillation takes place in lower and upper separation zones. A volatile mixture is separated in the upper separation zone, from which, after being cooled at 5 to 80 ° C. water and organic phases are separated, the latest being refluxed into the system. The ratio of the feed amount to the organic phase reflux amount is 1:1 to 1:20, the reflux amount representing 60 to 100 % of the whole amount of the organic phase.
    Type: Application
    Filed: July 15, 2002
    Publication date: December 5, 2002
    Applicant: Sulzer Chemtech AG
    Inventors: Jaromir Lederer, Jiri Kolena, Jiri Hanika, Pavel Moravek, Quido Smejkal, Vladimir Macek, Willem Levering, Oliver Bailer
  • Patent number: 6458992
    Abstract: The invention relates to a process of butylacetate production by esterification of acetic acid with butanol in the presence of a solid acidic catalyst in which distillatory separation of components runs simultaneously with esterification. Thus, acetic acid and butanol are introduced in defined amounts and in the molar ratio 1:1 to 1:10 into a system, in which the reaction and the distillatory separation proceeds in three zones. The reaction together with distillatory separation of the components with different boiling points run in the reaction zone, while only distillation takes place in lower and upper separation zones. A volatile mixture is separated in the upper separation zone, from which, after being cooled at 5 to 80° C., water and organic phases are separated, the latest being refluxed into the system. The ratio of the feed amount to the organic phase reflux amount is 1:1 to 1:20, the reflux amount representing 60 to 100% of the whole amount of the organic phase.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: October 1, 2002
    Assignees: Sulzer Chemtech AG, Chemopetrol, A.S.
    Inventors: Jaromír Lederer, Ji{haeck over (r)}í Kolena, Ji{haeck over (r)}í Hanika, Willem Wiekert Levering, Oliver Bailer, Pavel Morävek, Quido Smejkal, Vladimír Macek