Process for purifying 1,1,3,4,4,6-hexamethyltetralin

Details Process for purifying 1,1,3,4,4,6-hexamethyltetralin Process for purifying 1,1,3,4,4,6-hexamethyltetralin

1992-09-30

1993-11-23

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By cooling of liquid to obtain solid, e.g., crystallization,...

585812, 585813, 585815, 585816, C07C 714

Patent

active

052646530

ABSTRACT:
A process for purifying 1,1,3,4,4,6-hexamethyltetralin is disclosed comprising melting crude 1,1,3,4,4,6-hexamethyltetralin in methanol with heating, cooling the resulting suspension, and adding seed crystals at a temperature of 45.degree.-60.degree. C.; as well as a process for purifying 1,1,3,4,4,6-hexamethyltetralin comprising recrystallizing crude 1,1,3,4,4,6-hexamethyltetralin from a mixed solvent of methanol and a solvent capable of easily dissolving 1,1,3,4,4,6-hexamethyltetralin, the proportion of this solvent being 10 to 25% by weight based on the weight of methanol. These processes make it possible to obtain 1,1,3,4,4,6-hexamethyltetralin of high purity easily with high recovery by purifying crude 1,1,3,4,4,6-hexamethyltetralin.

REFERENCES:
patent: 3856875 (1974-12-01), Wood et al.
patent: 4284818 (1981-08-01), Sato et al.
patent: 5079386 (1992-01-01), Meakins et al.
Chem. Abstracts, vol. 97, No. 5, Aug. 2, 1982, Nitto Riken Industries, p. 545.

Affiliated with

Also associated with

Rating

Process for purifying 1,1,3,4,4,6-hexamethyltetralin 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 purifying 1,1,3,4,4,6-hexamethyltetralin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for purifying 1,1,3,4,4,6-hexamethyltetralin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1850986