PRODUCTION OF ANHYDROUS ALUMINUM CHLORIDE COMPOSITION

摘要

A process for producing an anhydrous aluminum chloride composition from a water-based aluminous material such as a slurry of aluminum hydroxide in a multistage extraction process in which the aluminum ion is first extracted into an organic liquid containing an acidic extractant and then extracted from the organic phase into an alkali metal chloride or chlorides to form a melt containing a mixture of chlorides of alkali metal and aluminum In the process theorganic liquid may be recycled. In addition the process advantageously includes an electrolysis cell for producing metallic aluminum and the alkali chloride or chlorides may be recycled for extraction of the aluminum from the organic phase.