process of separation of alkyl aluminum compound to a mixture containing the compound in the liquid phase, and at least one solvent oil

摘要

An alkyl aluminium compound is separated from liquid mixtures containing the said compound, hydrocarbons and at least one solvent by passing the mixture through a solid macro-molecular organic substance having combined atoms of oxygen, sulphur or nitrogen with electronic densities sufficient to form a covalent bond with, but not capable of degrading, the alkyl-aluminium. The mixture may be passed through the macro-molecular substance under an inert atmosphere with the aid of an inert solvent, e.g. benzene, heptane, until the hydrocarbons are washed out of the substance, the alkyl-aluminium may then be eluted with further solvent. The macro-molecular substance may be a polyether, a polythio-ether, a polynitrile or a polynitrile derivative, a polylactam, a polyester, a polyamide, a polysulphone, a polyurethane, or a polyacetal.