Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1981-09-28
1983-10-11
Mars, Howard T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
203DIG6, 260971, 568607, 568608, 568613, 568614, 568618, 568620, 568648, 568649, 568650, 568651, 568672, 568676, 568679, 568867, C07C 4103
Patent
active
044094035
ABSTRACT:
This invention relates to oxyalkylations which take place in the presence of solid acid catalysts. More particularly this invention relates to increasing the selectivity of such processes employing a solid acid catalyst, preferably a polyfluorosulfonic acid catalyst, in which an hydroxylic compound reactant reacts with an alkylene oxide reactant to produce a desired mono-oxyalkylated product which tends to react with the alkylene oxide to produce an undesired second product. The improvement comprises the steps of (1) vaporizing the hydroxylic compound in a reflux zone, (2) passing vaporized hydroxylic compound through a catalyst zone to a condenser wherein vaporized hydroxylic compound is condensed, (3) returning condensed hydroxylic compound to the catalyst zone and in the catalyst zone contacting condensed hydroxylic compound with vaporized hydroxylic compound and the alkylene oxide in the presence of a solid insoluble acidic catalyst at reaction conditions whereby the desired mono-oxyalkylated derivative is formed, (4) passing reaction products and unreacted condensed hydroxylic compound to the reflux zone, and (5) recovering the mono-oxyalkylated derivative.
REFERENCES:
patent: 2293868 (1942-08-01), Toussaint
patent: 2684387 (1954-07-01), Young
patent: 2807651 (1957-09-01), Britton et al.
patent: 3041317 (1962-06-01), Gibbs et al.
patent: 3282875 (1966-11-01), Connolly et al.
patent: 3624053 (1971-11-01), Gibbs et al.
patent: 3882093 (1975-05-01), Cavanaugh et al.
patent: 3954884 (1976-05-01), Kidwell
patent: 4165440 (1979-08-01), Kim
Mars Howard T.
Tonkin Charles J.
Varen Technology
LandOfFree
Oxyalkylation process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oxyalkylation process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxyalkylation process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1276623