Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1990-05-30
1992-03-17
Siegel, Alan
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C07C 3134
Patent
active
050970909
ABSTRACT:
In a process for the manufacture of 2-perfluoroalkylethyl alochols by sulfating 2-perfluoroalkylethyl iodides with oleum followed by hydrolysis of the resulting sulfated reaction mass with water, the improvement comprising carrying out both reactions in two similar continuous reactor systems, combined in series, in each of which one of the reactant streams is contacted with the reaction mass in a zone of intense agitation which forms part of a low volume recycle loop operated under pressure and at high rates of reecycle. Preferably the zone of intense agitation in the sulfation loop has an energy input of at least 0.05 horsepower per gallon per minute with a loop recycle time of 5 seconds or less, and the hydrolysis loop has an energy input of at least 0.4 horsepower per gallon per minute with a loop recycle time of 2 seconds or less. Most preferably, the energy input to the liquids in both loops is provided by centrifugal pumps.
REFERENCES:
patent: 3283012 (1966-11-01), Day
Chemical Engineering Handbook, 5th edition, Perry, Robert, McGraw Hill Book Company-1973, sections 6 and 21.
Cook Rebecca
E. I. Du Pont de Nemours and Company
Siegel Alan
LandOfFree
Process for the preparation of perfluoroalkylethyl alcohols 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 preparation of perfluoroalkylethyl alcohols, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of perfluoroalkylethyl alcohols will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1477425