Patents by Inventor Melvin Ernest Stockton

Melvin Ernest Stockton 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 the manufacture of methyl tertiary butyl ether from tertiary butyl alcohol and methanol
    Patent number: 5811597
    Abstract: Methyl tertiary butyl ether is prepared from contaminated TBA by reactively distilling the contaminated TBA in a reactive distillation column to provide a lower boiling isobutylene fraction and a higher boiling aqueous TBA fraction, by distilling the higher boiling aqueous TBA fraction to provide a lower boiling TBA fraction, by charging the lower boiling isobutylene fraction, the lower boiling tertiary butyl alcohol fraction and methanol to an etherification reactor to form an etherification reaction product, by distilling the etherification reaction product to provide a lower boiling fraction containing isobutylene, methanol and methyl tertiary butyl ether by charging the lower boiling fraction to a finishing reactor to react the isobutylene and methanol contained therein to from additional MTBE and by recovering MTBE from the etherification reaction product and the isobutylene conversion product.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: September 22, 1998
    Assignee: Huntsman Specialty Chemicals Corp.
    Inventors: Rei-Yu Judy Hwan, Mark Elliott Taylor, John Frederick Knifton, Melvin Ernest Stockton, John Ronald Sanderson
  • Use of reactive distillation in the dehydration of tertiary butyl alcohol
    Patent number: 5811620
    Abstract: A tertiary butyl alcohol feedstock is dehydrated to form isobutylene and water in a reactive distillation column having a reactive distillation section in the middle portion thereof containing a bed of a TBA dehydration catalyst and a substantially anhydrous lower boiling isobutylene fraction is recovered adjacent the top of the reactive distillation column and a higher boiling aqueous fraction is recovered adjacent the bottom of the reactive distillation column.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: September 22, 1998
    Assignee: Huntsman Specialty Chemicals Corporation
    Inventors: John Frederick Knifton, John Ronald Sanderson, Melvin Ernest Stockton