Method of purifying polymerizable organic substances

Details Method of purifying polymerizable organic substances Method of purifying polymerizable organic substances

1971-11-04

1976-07-13

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603435, 2603436, 2603439, 260677A, 260677AD, 260669A, 260654S, 260318, 2603459, 260340, 2603409, 260343, 260708, 210 38R, 2603406, 2603461R, 260348R, 26029386, 2603265FN, 260561N, 2604659, 260601R, C07D20116

Patent

active

039693449

ABSTRACT:
A process for purifying a polymerisable monomer selected from the group consisting of cyclic ethers, hydrocarbon olefins, vinyl compounds, aldehydes, lactams of the formula: ##EQU1## wherein x is an integer from 3 to 13 and lactones of the formula: ##EQU2## wherein n is an integer of from 1 to 4 and wherein R represents an hydrogen atom, an alkyl group or an aryl group; said process comprising contacting a liquid consisting of said monomer at a temperature of not greater than 130.degree. centigrade and at a pressure sufficient to keep said monomer in liquid form, with a solid absorbent consisting essentially of a porous reticulated macromolecular alkali metal or alkaline earth metal salt of a cationic exchange resin containing carboxylic, sulfonic or phosphoric acid groups, said cationic exchange resin having a specific surface area of at least one square meter per gram and a pore diameter of from 10.sup.1.3 to 10.sup.5 angstroms and recovering the purified monomer.

REFERENCES:
patent: 2622097 (1952-12-01), Osborne
patent: 2692878 (1954-10-01), Kahr
patent: 2828307 (1958-03-01), Soeterbroek et al.
"Ion Exchangers in Organic and Biochemistry" Edited by Calmon and Kressman (Interscience) (1957), Chapter 15 by H. F. Walton, pp. 640-657.

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