The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 2010
Filed:
Jun. 09, 2008
Applicants:
Joseph P. Bridges, Houston, TX (US);
Robert J. Haynal, Houston, TX (US);
Allen David Hood, Jr., Houston, TX (US);
Solon B. Williams, Kingwood, TX (US);
Inventors:
Joseph P. Bridges, Houston, TX (US);
Robert J. Haynal, Houston, TX (US);
Allen David Hood, Jr., Houston, TX (US);
Solon B. Williams, Kingwood, TX (US);
Assignee:
Equistar Chemicals, LP, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/08 (2006.01); C07C 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for reducing corrosion in a diolefin extractive distillation process comprising preventing the formation of ammonium carbonate by promoting the formation of a carbonate salt that does not dissociate in the ammonium carbonate dissociation temperature range of that extractive distillation process.