THE USE OF AMINE-ALUMINUM CHLORIDE ADDUCTS AS ALKYATION INHIBITORS IN ALIGAND-COMPLEXING PROCESS

摘要

Comploxible ligands are sepd. from a gas feed stream of ethylene, progylene or their mixt. by (a) contacting the gas feed stream with a liq. sorbent in a soln. of aromatic hydrocarbon of bimetallic salt complex of formula (I) MIMIIXn. The improvement involves using a liq. sorbent (8.5-30 mole %) based on MI, or amine-AlCl3 adduct chosen from (i) R3NLAlCl3 or (ii) adduct or formula (II), or their mixts. to reduce alkylation and other side reactions in the ligand sepn. process. In (I) MI is GP. I-B metal. MII is GP. III-A metal. X is halogen, n is the sum of the valences of Mi and MII.