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Hydrothermal precipitation of boehmite from aluminum chloride solutions.
For Reference Only At Bureau Libraries, 1980; :1-30
This report summarizes the results of Phase I of a program to study the precipitation of boehmite from AlCl3 solutions. The amount of boehmite precipitation from dilute AlCl3 solutions is negligible below 200 degrees C. Above 200 degrees C the precipitation increases with increasing temperature approaching 40 pct at 300 degrees C. Addition of HCl acid to the dilute AlCl3 solution even in small quantities drastically reduces boehmite precipitation. Solution impurities such as FE, CA, MG, or NA substantially promote the precipitation of boehmite. No precipitation is observed from concentrated AlCl3 solution representing the leach liquor.
Mining-industry; Aluminum-compounds; Chlorides; Hydrodynamics; Thermodynamics; Aluminum-oxides; Hydroxides; Temperature-effects; Acids; Minerals
7446-70-0; 1318-23-6; 7647-01-0
CP; Final Contract Report
For Reference Only At Bureau Libraries
SRI International, Menlo Park, California
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division