Process for preparation of isoprene

Details Process for preparation of isoprene Process for preparation of isoprene

1974-09-13

1976-08-03

Horwitz, D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 120

Patent

active

039729559

ABSTRACT:
In the preparation of isoprene by reacting isobutene with formaldehyde to produce 4,4-dimethyl-m-dioxane in a first stage, and decomposing the dioxane to isoprene and formaldehyde in a second stage, formaldehyde in the effluent streams of either or both of said stages is recovered. The formaldehyde-containing liquids are distilled to separate high boilers; the overhead, which is formaldehyde-rich, is extracted with isobutene feed to the process, whereby the isobutene extracts low boilers from the formaldehyde-containing liquid; and the formaldehyde-containing liquid, having at some point after said distillation been treated with an alkaline material, is subjected to rectification to produce as head product, the recovered formaldehyde.

REFERENCES:
patent: 3057923 (1962-10-01), Hellin et al.
patent: 3773847 (1973-11-01), Losacker et al.

Affiliated with

Also associated with

Rating

Process for preparation of isoprene 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 preparation of isoprene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparation of isoprene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1929475