MINERALOGICAL STUDIES AND HYDROMETALLURGICAL PROCESSING OF EGYPTIAN BAUXITE

Authors
AMER AM ABDELAAL EA
Citation
Am. Amer et Ea. Abdelaal, MINERALOGICAL STUDIES AND HYDROMETALLURGICAL PROCESSING OF EGYPTIAN BAUXITE, Transactions of the Indian Institute of Metals, 49(1-2), 1996, pp. 25-28
Citations number
12
Journal title
Transactions of the Indian Institute of Metals
ISSN journal
09722815 → ACNP
Volume
49
Issue
1-2
Year of publication
1996
Pages
25 - 28
Database
ISI
SICI code
0972-2815(1996)49:1-2<25:MSAHPO>2.0.ZU;2-3
Abstract
Bauxite ore from Um Bogma, Southwestern Sinai, Egypt was mineralogical ly characterized. It contains 70% gibbsite, 13.2% quartz and 11.0% kao linite. Beneficiation of the ore reduced the quartz content to 2.4%. H ydrometallurgical processing of the beneficiated gibbsite bauxite was done by hot leaching with sodium carbonate and lime water in an attrit or. Aluminium was converted to soluble sodium aluminate low in SiO2(<0 .1%) and the recovery was over 92% for a short leaching duration of 15 minutes at 90 degrees C. The residue was essentially composed of calc ium silicate.