METHOD OF PRODUCTION OF BASIC ALUMINIUM CHLORIDE Russian patent published in 2000 - IPC

FIELD: inorganic chemistry, chemical technology. SUBSTANCE: liquid waste in production of isobutylbenzene in the content of aluminium chloride (AlCl₃) from 200 to 300 g/dm³ is subjected for neutralization with solution exhibiting caustic ratio = 1. Neutralization process is carried out at the room temperature. Neutralization of solution of aluminium chloride (AlCl₃) with alumina solution is carried out in the stoichiometric ratio of components, g-mole, AlCl₃ : alumina solution = (0.666-1.333):(0.666-1.333) for preparing mono- and bimolar low-base solution of basic aluminium chloride and in the ratio = (0.575-1.150):(0.719-1.438) for preparing 1.020 and 2.040 molar high-basic solution of basic aluminium chloride, respectively. EFFECT: decreased cost of product and energy consumption, simplified process, absence of corrosive HCl vapor evolving. 3 cl, 1 tbl