ANTIGELLING AGENT FOR HYDROCARBON MIXTURE CONTAINING CONJUGATED DIENE AND METHOD OF PREVENTING CLOGGING OF APPARATUS FOR SEPARATING AND PURIFYING THE MIXTURE

摘要

An antigelling agent for a hydrocarbon mixture containing a conjugated diene, which comprises (a) at least one compound selected from the group consisting of compounds having an NO radical in the molecule and precursors capable of forming an NO radical; (b) a phosphorus compound, and (c) at least one compound selected from the group consisting of heterocyclic aldehydes, aromatic aldehydes, and condensates of these. By adding the antigelling agent to an apparatus for separating and purifying a hydrocarbon mixture containing a conjugated diene, the apparatus is prevented from being clogged.