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Evaluation of Environmental Factors Involved in Metallurgical Processes to Utilize Domestic Resources for Production of Alumina. Phase II Report: Assessment of Two Raw Material/process Tech. Options.
Tisdel-LC; Roushey-WJ; Melcher-AG; Et Al
NTIS: PB/82-138264 :121 pages
This study provides information on the environmental factors of two options for production of alumina from kaolin clay raw material that were selected by the Bureau of Mines for further study from six raw material-process technology options considered in a previously issued report. The options under study are hydrochloric acid leaching using hcl gas-induced crystallization and nitric acid leaching. This study concentrates on the hydrochloric acid leaching option because it has been identified as having a better potential for commercial development. Included in the assessment are mining and transportation of ore, construction and operation of the process plant, disposal of process wastes, and land reclamation considerations. The primary information sources for the study included process feasibility studies, reports of investigations, information circulars, and nonpublished material provided by the Bureau of Mines. The results indicate that the hydrochloric acid leaching option exhibits the least potential for adverse environmental effects.
CP; Final Contract Report;
NTIS Accession No.
Colorado School/mines Res. Inst.
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division