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:
Feb. 21, 1984
Filed:
May. 06, 1983
Applicant:
Inventors:
Ted Symon, Lombard, IL (US);
Dusan J Engel, Des Plaines, IL (US);
Assignee:
UOP Inc., Des Plaines, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; C10G / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
585803 ; 585807 ; 585827 ; 585836 ; 585853 ; 203 29 ; 203 32 ; 203 33 ; 208249 ;
Abstract
Solvents which may be used as mediums for the polymerization of olefinic hydrocarbons to form polymers useful as membranes in a gas separation process require purification to remove any impurities which will effect the aforesaid polymerization. Purification of these solvents such as cyclohexane may be effected by treating the solvent with titanium tetrachloride, contacting the solution with an adsorbent such as silica gel and thereafter distilling the solvent in the presence of a purification agent such as an alkaline metal aluminum hydride or borohydride.