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PROCESS FOR SEPARATING AN ETHYLENICALLY UNSATURATED HYDROCARBON FROM A HYDROCARBON MIXTURE; PROCESS FOR SEPARATING CLOSE BOILING LIQUIDS; PROCESS FOR INHIBITING POLYMERIZATION OF STYRENE
PROCESS FOR SEPARATING AN ETHYLENICALLY UNSATURATED HYDROCARBON FROM A HYDROCARBON MIXTURE; PROCESS FOR SEPARATING CLOSE BOILING LIQUIDS; PROCESS FOR INHIBITING POLYMERIZATION OF STYRENE
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机译:从烃混合物中分离出非饱和非饱和烃的方法;分离封闭沸腾液体的过程;抑制苯乙烯聚合的方法
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摘要
Process for separating hydrocarbons with double bounds (styrene, butadiene, isoprene etc) from hydrocarbon mixtures containing them by extractive distillation with an amine with more than one amino-group (e.g. N-aminoethylpiperazine) as solvent. N-aminoethylpiperazine can also be used as solvent in the extractive distallation of close-boiling liquids or as polymerization inhibitor for styrene.
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