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:
Apr. 13, 2004
Filed:
Apr. 17, 2002
Applicant:
Inventors:
Richard L. Wilson, Mulvane, KS (US);
John L. Dawkins, Derby, KS (US);
Rodney L. Klausmeyer, Wichita, KS (US);
James J. Weller, Mulvane, KS (US);
Assignee:
Vulcan Chemicals Division of Vulcan Materials Company, Birmingham, AL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 1/726 ; C07C 1/730 ; C07C 1/732 ; C07C 1/900 ; C07C 1/7266 ; C07C 2/118 ;
U.S. Cl.
CPC ...
C07C 1/726 ; C07C 1/730 ; C07C 1/732 ; C07C 1/900 ; C07C 1/7266 ; C07C 2/118 ;
Abstract
A process for economically producing 1,1,1,3,3-pentachloropropane under conditions which preserve the activity of the catalyst. In a preferred embodiment, a two-stage distillation process is employed. In the two-stage process, the size of the equipment, temperature and vacuum are varied.