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Alumina Process Feasibility Study and Preliminary Pilot Plant Design. Task 1 Final Report: Comparison of Six Processes.

PB286638

Publication Date	1977
Personal Author	Bengtson, K. B.; Chuberka, P.; Malm, L. E.; McLaughlin, A. E.; Nunn, R. F.
Page Count	270
Abstract	This study compares six nonbauxitic alumina processes with the objective of selecting the two most promising candidate processses for further study. The comparisons cover both technical and economic aspects of alumina process plants of a commercial size in the United States. The processes considered were hydrochloric acid-clay (evaporative and gas-induced crystallization), nitric acid-clay, sulfurous acid-clay, anorthosite-lime sinter, and alunite. Technical appraisals for each process complete with process descriptions, heat and material balances, flowsheets, and equipment lists have been prepared based on published information available through the Bureau of Mines miniplant program and other nonproprietary sources. Technical and economic comparisons are made from which conclusions can be drawn for selecting the two most promising processes.
Keywords	Aluminum Extractive metallurgy Clays Economic analysis Leaching Nitric acid Hydrochloric acid Sulfuric acid Sintering Calcium oxides Roasting Reduction(Chemistry) Aluminum oxide Precipitation(Chemistry) Capitalized costs Mining Assessments Pilot plants Process charting Operating costs Alunite Anorthosite Contingency planning
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 71N - Nonferrous Metals & Alloys
Corporate Authors	Kaiser Engineers, Inc., Oakland, CA.; Bureau of Mines, Washington, DC.
Supplemental Notes	See also Task 2 Final rept. dated Feb 78, PB-286 639.
Document Type	Technical Report
NTIS Issue Number	197902
Contract Number	J0265048

Alumina Process Feasibility Study and Preliminary Pilot Plant Design. Task 1 Final Report: Comparison of Six Processes.

Alumina Process Feasibility Study and Preliminary Pilot Plant Design. Task 1 Final Report: Comparison of Six Processes.
PB286638

Publication Date	1977
Personal Author	Bengtson, K. B.; Chuberka, P.; Malm, L. E.; McLaughlin, A. E.; Nunn, R. F.
Page Count	270
Abstract	This study compares six nonbauxitic alumina processes with the objective of selecting the two most promising candidate processses for further study. The comparisons cover both technical and economic aspects of alumina process plants of a commercial size in the United States. The processes considered were hydrochloric acid-clay (evaporative and gas-induced crystallization), nitric acid-clay, sulfurous acid-clay, anorthosite-lime sinter, and alunite. Technical appraisals for each process complete with process descriptions, heat and material balances, flowsheets, and equipment lists have been prepared based on published information available through the Bureau of Mines miniplant program and other nonproprietary sources. Technical and economic comparisons are made from which conclusions can be drawn for selecting the two most promising processes.
Keywords	Aluminum Extractive metallurgy Clays Economic analysis Leaching Nitric acid Hydrochloric acid Sulfuric acid Sintering Calcium oxides Roasting Reduction(Chemistry) Aluminum oxide Precipitation(Chemistry) Capitalized costs Mining Assessments Pilot plants Process charting Operating costs Alunite Anorthosite Contingency planning
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 71N - Nonferrous Metals & Alloys
Corporate Authors	Kaiser Engineers, Inc., Oakland, CA.; Bureau of Mines, Washington, DC.
Supplemental Notes	See also Task 2 Final rept. dated Feb 78, PB-286 639.
Document Type	Technical Report
NTIS Issue Number	197902
Contract Number	J0265048