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. 09, 1998
Filed:
Aug. 29, 1996
Applicant:
Inventors:
Te Chang, West Chester, PA (US);
Vijai P Gupta, Berwyn, PA (US);
Assignee:
Arco Chemical Technology, L.P., Greenville, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; C07C / ;
U.S. Cl.
CPC ...
203 52 ; 203 68 ; 203 69 ; 203 70 ; 568411 ;
Abstract
Close boiling hydrocarbon impurities are separated from acetone by extractive distillation using a C.sub.9 -C.sub.14 alkane and/or a C.sub.8 -C.sub.12 aromatic hydrocarbon extractive distillation solvent.