Patents Examined by G. Kaplan
  • Process for preparing basic aluminum chlorides
    Patent number: 4203812
    Abstract: When aqueous solutions of aluminum chloride or of basic aluminum chloride having the formula Al.sub.2 (OH).sub.m Cl.sub.6-m wherein m is a number from 0 to 5.3 are submitted to electrolysis chlorine is removed and the Al/Cl ratio of the solution increases. The electrolysis is performed without diaphragm. Graphite anodes cannot be used. It is possible to process the resulting solutions to solid basic aluminum chloride having the formula Al.sub.2 (OH).sub.n Cl.sub.6-n wherein n is a number from 1 to 5.34.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: May 20, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Dieter Bergner, Max Danner