Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1980-10-27
1983-04-12
Mars, Howard T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
560261, C07C 6700, C07C 6756
Patent
active
043799400
ABSTRACT:
A process for purifying vinyl acetate contaminated with acetic acid, coloration agents, water, and/or sodium chloride. The first stage consists of removing acetic acid by passing the vinyl acetate feed through a dehydrated anion exchange resin bed. The second stage consists of removing coloration agents by passing the vinyl acetate feed through a bed of activated carbon. The third stage consists of removing water by passing the vinyl acetate feed through a bed of desiccant. The fourth stage consists of removing sodium chloride by passing the vinyl acetate feed through separate cation exchange resin and anion exchange resin beds or through a mixed resin bed.
REFERENCES:
patent: 2409441 (1946-05-01), Metzger
patent: 2986575 (1961-05-01), Hubner
patent: 3235610 (1966-03-01), Wymore
patent: 3318948 (1967-10-01), Burgess
patent: 3324156 (1967-04-01), Elder et al.
patent: 3399208 (1968-07-01), Ward
patent: 3438892 (1969-07-01), Wymore et al.
patent: 3905875 (1975-03-01), Kronig et al.
patent: 3922217 (1975-04-01), Cohen et al.
patent: 3969344 (1976-03-01), Ackermann et al.
patent: 3985648 (1976-01-01), Casolo
patent: 4049548 (1977-02-01), Dickerson
patent: 4283572 (1981-08-01), Klicker
Rohm & Haas Co., "Amberlyst 15 Synthetic Resin Catalyst Technical Notes," Washington Square, Phila. 5, Pa., pp. 1 and 3, 1962.
Don Chemical Co., "Dowex: Ion Exchange", Midland, Mich., p. 33, 1964.
C. Calmon et al., Ion Exchangers in Organic and Biochemistry, pp. 640-643; pp. 655-657 (1957).
Kirk-Othmer, Encyclopedia of Chemical Technology (2nd Edition), (1966), vol. 11, pp. 871-899; vol. 21, pp. 329-330 (1970).
Industrial Chemicals, Vinyl Acetate, pp. 800-804.
Amberlite IRA-94, Rohm & Haas Company, 1978.
IONAC AFP-329, Ionac Chemical Company.
Ecolochem, Inc.
Mars Howard T.
LandOfFree
Vinyl acetate purification 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 Vinyl acetate purification process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vinyl acetate purification process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-939653