Process and apparatus for the production of vinyltoluene

Details Process and apparatus for the production of vinyltoluene Process and apparatus for the production of vinyltoluene

C - Chemistry, Metallurgy

07

C

23/399, 260/682.

C07C 15/44 (2006.01) B01J 19/00 (2006.01) C07C 7/20 (2006.01) C07C 15/46 (2006.01)

Patent

CA 1155873

ABSTRACT OF THE DISCLOSURE A process for preparing viny toluene comprising passing ethyltoluene through a dehydrogenation zone to form vaporous crude vinyltoluene, adding from about 50 to about 100 parts per million by weight of a polymeri- zation inhibitor such as a nitrated phenol to the vaporous crude vinyltoluene at a temperature between about 200 and about 300°C, condensing the vaporous crude vinyltoluene, maintaining the pH of the aqueous phase of the condensed crude vinyltoluene at a value between about 5.5 and about 6.5 sufficient to maintain the inhibitor in the organic phase of the condensed crude vinyltoluene, adding a second portion of polymeri- zation inhibitor to the condensed crude vinyltoluene until the inhibitor concentration totals about 500 parts per million by weight relative to the vinyltoluene content of the crude vinyltoluene, filtering the con- densed crude vinyltoluene to remove seed polymer, and distilling the condensed crude vinyltoluene to recover substantially pure vinyltoluene; and apparatus for carrying out said method.

393024

Affiliated with

Also associated with

Rating

Process and apparatus for the production of vinyltoluene does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and apparatus for the production of vinyltoluene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for the production of vinyltoluene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-886165