C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/662.3
C07C 17/25 (2006.01)
Patent
CA 1036622
IMPROVED PROCESS FOR THE PRODUCTION OF 2-CHLOROBUTADIENE-1,3 FROM 3,4-DICHLOROBUTENE-1 Abstract of the Disclosure A process is described whereby 2-chlorobutadiene-1,3 is produced from 3, 4-dichlorobutene-1 in a two-phase reaction system wherein the reaction predominantly occurs in the organic phase and the production of undesirable by-products, particularly 1-chlorobutadiene-1,3 and acetaldehyde, is suppressed. The practice of the process results in a brine effluent from the reactor containing small amounts of organic materials resulting in a waste product which is less polluting and more easily cleaned. The organic phase is selected from primary and secondary alcohols, alkoxyethanols and mixtures thereof, preferably alkoxyethanols wherein the alkyl group has two or more carbon atoms. Surprisingly, I have discovered that the selection of the organic phase of the reaction system is made by a screening test wherein a two-phase system of a 20% brine and 3,4-dichlorobutene-1 is prepared and the alcohol or alkoxy- ethanol being investigated is added to obtain equilibrium in the system. Materials selected as the organic phase material are selected from those where the product of the weight percent water in the organic phase and weight percent alcohol being investigated in the organic phase is greater than 200.
214652
Denka Chemical Corporation
Na
LandOfFree
Process for the production of 2-chlorobutadiene-1,3 from... 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 for the production of 2-chlorobutadiene-1,3 from..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of 2-chlorobutadiene-1,3 from... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-126463