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.:

US 7431843 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 07, 2008

Filed:

Aug. 16, 2004
Applicants:

Gavin P. Towler, Barrington, IL (US);

Laszlo T. Nemeth, Barrington, IL (US);

Inventors:

Gavin P. Towler, Barrington, IL (US);

Laszlo T. Nemeth, Barrington, IL (US);

Assignee:

UOP LLC, Des Plaines, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus and process for removing impurities from silicone based solvents is presented. The apparatus and process use an adsorbent for removing contaminants from the solvent, and when the adsorbent is sufficiently loaded with contaminants, the adsorbent is regenerated. The regeneration process entails a two stage heating process for recovery of solvent and removal of contaminants.


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