Process for the preparation of superfine aluminum hydroxide alumina based on its

摘要

1. A process for preparing finely divided aluminum hydroxide, which comprises treating aluminum hydroxide sol, characterized in that the treatment of aluminum hydroxide sol is carried out in a coaxial electrolytic cell wherein the anode area exceeds the area of ​​the cathode by at least two orders of magnitude, as the anode is titanium VT1-0 a ruthenium oxide-coated titanium, and as the cathode - steel 18Cr10NiTi at an anodic current density of 300-500 a / m2 current, followed by aging the precipitate in the mother liquor. ! 2. The method for producing alumina-based finely divided aluminum hydroxide according to claim 1, comprising a heat treatment, characterized in that the heat treatment is conducted at a temperature of 500-550 ° C.