Patents by Inventor John D. Chase

John D. Chase 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).

  • Method for processing etherified light hydrocarbon mixtures to remove methanol
    Patent number: 4218569
    Abstract: Mixed hydrocarbons of predominantly four carbon atoms each are subjected to etherification with methanol, to make ether from the tertiary olefin in the mixture; the unreacted hydrocarbons, after separation from the ether by distillation, are contaminated with methanol which is removed by absorption or extraction with a glycol before the hydrocarbons are subjected to further processing in which the methanol is detrimental.
    Type: Grant
    Filed: March 14, 1978
    Date of Patent: August 19, 1980
    Assignee: Gulf Canada Limited
    Inventors: John D. Chase, Buenaventura B. Galvez, Bruce W. Kennedy
  • Etherification processing of light hydrocarbons
    Patent number: 4204077
    Abstract: In the processing of olefinic hydrocarbon mixtures containing isobutylene and isoamylene which are etherified with methanol to obtain higher octane components, unreacted methanol is removed from the etherified mixture by contact with a separate liquid glycol phase before unreacted hydrocarbons, substantially free of methanol, are distilled from the etherified mixture for further catalytic processing in which methanol is deleterious to the catalyst.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: May 20, 1980
    Assignee: Gulf Canada Limited
    Inventors: Hanbury J. Woods, John D. Chase, Buenaventura B. Galvez
  • Preparation of gasoline containing tertiaryamyl methyl ether
    Patent number: 4193770
    Abstract: A process for preparing, from tertiary olefin containing hydrocarbon fractions, a hydrocarbon fraction containing tertiaryamyl methyl ether, the process achieving high conversion of 2-methyl butenes to the ether by etherification with methanol after adequate separation of the 2-methyl butenes from other tertiary olefins, the improved conversion being achieved by separating unreacted 2-methyl butenes from etherified material and recycling them for further reaction.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: March 18, 1980
    Assignee: Gulf Canada Limited
    Inventors: John D. Chase, Hanbury J. Woods, Bruce W. Kennedy