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:
Jun. 18, 2013
Filed:
Dec. 21, 2011
Karl T. Chuang, Edmonton, CA;
Christina Dirk-faitakis, Edmonton, CA;
Tzong-bin Lin, Chia-Yi, TW;
Hung-chung Shen, Chia-Yi, TW;
Karl T. Chuang, Edmonton, CA;
Christina Dirk-Faitakis, Edmonton, CA;
Tzong-Bin Lin, Chia-Yi, TW;
Hung-Chung Shen, Chia-Yi, TW;
CPC Corporation, Taiwan, Taipei, TW;
Abstract
A continuous epoxidation process for the production of high purity propylene oxide by the reaction of propylene with an oxidant that is a per-acid, such as peracetic acid (PAA), in a reactive distillation (RD) column. The RD column provides excellent heat integration and temperature control, and the process has the advantage of lower investment cost for capital equipment. The process operates at mild temperatures and pressures. A ferric acetylacetonate homogeneous catalyst and/or stabilizer may be included as part of the PAA feed to the process to increase PAA conversion and selectivity to propylene oxide. A pre-reactor can be incorporated upstream of the RD column to increase the residence time at lower temperatures to enhance productivity.