Organic compounds -- part of the class 532-570 series – Organic compounds – Carbonate esters
Patent
1994-06-07
1996-04-02
Evans, Joseph E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbonate esters
560248, 564216, 564497, 568410, 568411, 568699, 568868, 568913, 570262, C07C 2726, C07C 2976, C07C 6996, C07C 4134
Patent
active
055042392
ABSTRACT:
A first alkanol having from 1 to 3 carbon atoms can be separated off from other organic compounds of higher carbon number from the group comprising other alcohols, polyalcohols, ethers, oxo compounds, esters of carboxylic acids and of carbonic acid, haloaliphatics, amines, amides, hydrocarbons, carboxylic acids and nitriles, which in each case have at least 1 carbon atom more than the first alkanol, where in the case of halogenoaliphatics, halogen substituents are counted as further carbon atoms, by permeation on membranes, if a water content from 1 to 30% by weight, preferably from 5 to 15% by weight, based on the amount of mixture and water, is maintained.
REFERENCES:
patent: 3963586 (1976-06-01), Ginnasi et al.
patent: 4162200 (1979-07-01), Himmele et al.
patent: 4755299 (1988-07-01), Bruschke
patent: 4798674 (1989-01-01), Pasternak et al.
patent: 4876403 (1989-10-01), Cohen et al.
patent: 4915834 (1990-04-01), Bruschke
patent: 5146009 (1992-09-01), Cohen et al.
patent: 5248427 (1993-09-01), Spiske et al.
patent: 5294344 (1994-03-01), Feimer et al.
patent: 5360923 (1994-11-01), Nickel et al.
Chemical Abstracts, 38-Plastics Fabr. Uses, vol. 115, 1991, p. 91; CA# 51546h, "Composite pervaporation membrane and dewatering of amines therewith", H. Brueschke et al.
Chemical Abstracts, vol. 90, 1979, p. 556; CA# 168056e, "Separation of dimethylcarbonate from its azeotrope with methanol", H. J. Buysch et al.
Chemical Abstracts, 28-Aliphatics, vol. 9, 1979, p. 601; CA# 192848f, "purification of dimethyl carbonate", K. Fischer et al.
Chemical Abstracts, 23-Aliphatics, vol. 85, 1976, p. 495; CA# 159462d, "Recovery of dimethyl carbonate from its azeotropic mixture with methanol", U. Romano.
Groschl Andreas
Janisch Ingo
Mehl Wolf
Scheinert Wolfgang
Bayer Aktiengesellschaft
Evans Joseph E.
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