METHOD OF OBTAINING ALUMINIUM HYDROXYCHLORIDE

摘要

1376885 Aluminium chlorohydroxide SNAM PROGETTI SpA 27 Feb 1973 [1 March 1972] 9645/73 Heading C1A [Also in Division C7] Process for producing aluminium chlorohydroxide comprises dissolving aluminium oxide in hydrochloric acid then electrolyzing the solution. The aluminium oxide may be alumina bayer, bayerite, gibbsite, bauxite, diaspone, hydraragillite or boehmite. The dissolution may be at 100-160‹ C. at 0À1-10À0 Kg./cm2. The evolved H 2 and Cl 2 may be reacted to form HCl which may be recycled. The cathode may be carbon, Ti, Ta, Ir, Ru or Pt. The chlorohydroxide may be Al 2 (OH) x Cl y where X=2À5-3À5 and Y=3À5-2À5.