PROCESS FOR THE PURIFICATION OF POLYMERIZABLE ORGANIC SUBSTANCES

A process for purifying a polymerisable monomer selected from the group consisting of cyclic ethers, hydrocarbon olefins, vinyl compounds, aldehydes, lactams of the formula: NH (CH2)x ANGLE ¦ CO wherein x is an integer from 3 to 13 and lactones of the formula: R-CH-(CH2)n-CO O wherein n is an intege...

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Bibliographische Detailangaben
Hauptverfasser:	ACKERMAN JACOB, RADICI PIERINO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON HETEROCYCLIC COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for purifying a polymerisable monomer selected from the group consisting of cyclic ethers, hydrocarbon olefins, vinyl compounds, aldehydes, lactams of the formula: NH (CH2)x ANGLE ¦ CO wherein x is an integer from 3 to 13 and lactones of the formula: R-CH-(CH2)n-CO O 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 DEG 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 101.3 to 105 angstroms and recovering the purified monomer.