INVESTIGATION OF CHEMICAL CONVERSIONS IN ALKYLBENZENE ALUMINUM SOLUTIONS

A new aluminum bath is suggested. Gas-liquid chromatography studies re veal that during electrochemical pretreatment of a xylene solution of AlBr3 a remethylation reaction accelerates and results in the formatio n of pseudocumene, durene, prehnitene, and methyl bromide. These subst ances promote the emergence of positively and negatively charged Al co mplexes. The introduction of durene into a xylene electrolyte makes it s electrochemical pretreatment unnecessary. The extraction of benzene and toluene from a spent electrolyte restores its efficiency. Aluminum coatings obtained may be used for protection of metal against corrosi on.