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Alumina Extraction from High-Silica Bauxite by Work Work is a document available to read on EtoBox.
This document summarizes research on extracting alumina from high-silica bauxite using hydrochloric acid leaching. The researchers investigated leaching bauxite directly with hydrochloric acid, which extracted only 23% of the alumina over 5 hours. They then investigated pre-roasting the bauxite at 700°C before leaching, which transformed low solubility minerals like boehmite and kaolinite into more acid soluble forms, increasing alumina extraction to 89%. Thermodynamic modeling supported that pre-roasting i
- Author
- Work Work
- Language
- EN