JAMES JOSEPH DOWNS
Pilots at Cox Holw Rd, Kingsport, TN
License number
Tennessee A0497809
Issued Date
Mar 2015
Expiration Date
Mar 2016
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
632 Cox Hollow Rd, Kingsport, TN 37663
Professional information
Controlled Continuous Purification Of Propylene Oxide By Extractive Distillation
US Patent:
5830324, Nov 3, 1998
Filed:
Oct 17, 1996
Appl. No.:
8/733696
Inventors:
James Joseph Downs - Kingsport TN
Andrew Charles Hiester - Kingsport TN
Mark Elliott Taylor - Orange TX
Mark Allan Mueller - Austin TX
Michael Warren Peters - Gilbert AZ
William Pleasie Nelson - Nederland TX
Andrew Charles Hiester - Kingsport TN
Mark Elliott Taylor - Orange TX
Mark Allan Mueller - Austin TX
Michael Warren Peters - Gilbert AZ
William Pleasie Nelson - Nederland TX
Assignee:
Huntsman Specialty Chemicals Corp. - Austin TX
International Classification:
B01D 340, B01D 342, C07D30132
US Classification:
203 1
Abstract:
In the continuous purification of a propylene oxide feedstock contaminated with water, methanol and acetone wherein an acetone buffer is established in the column, normal distillation conditions are maintained or restored during or after an upset by continuously monitoring predetermined distillation conditions in the acetone buffer zone, and adding additional acetone to the extractive distillation column when the monitored distillation condition deviates from a predetermined value by a predetermined amount.