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:
Jan. 17, 2006
Filed:
Jan. 21, 2004
Michael A. Risch, Seabrook, TX (US);
Teng Xu, Houston, TX (US);
John Di-yi Ou, Houston, TX (US);
Keith Holroyd Kuechler, Friendswood, TX (US);
James H. Beech, Kingwood, TX (US);
James Richardson Lattner, Seabrook, TX (US);
Cor F. Van Egmond, Pasadena, TX (US);
Michael A. Risch, Seabrook, TX (US);
Teng Xu, Houston, TX (US);
John Di-Yi Ou, Houston, TX (US);
Keith Holroyd Kuechler, Friendswood, TX (US);
James H. Beech, Kingwood, TX (US);
James Richardson Lattner, Seabrook, TX (US);
Cor F. Van Egmond, Pasadena, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
The present invention provides a process for removing oxygenate impurities, e.g., dimethyl ether, from an olefinic product stream by converting the oxygenate impurity to a compound whose boiling point differs by at least about 5° C. from the oxygenate impurity. Typically, the compound is more readily removable from the product stream than the oxygenate impurity.