Page 22 - Technology Compendium
P. 22
CSIR-IMMT/MIN - 11
Process to Beneficiate Low Grade Bauxite
Advantages / Salient Technical Features Scale of Development
• Reduces reactive silica content less than 2% • Lab Validation (Current TRL Level : 05)
• Increase alumina content more than 42%
Commercialization Status
Problem being addressed • Already projects have been undertaken
• As the high grade bauxite ore availability becomes
the problem, low grade bauxite ore is needed to Techno-economics
beneficiate to meet the requisite specification of • NA
the alumina industry. The reactive silica presents
mostly in ultrafine forms. If it is more, it increases
the consumption of sodium hydroxide in leaching Technology Package
process. • Concept to development of process
flowsheet
Environmental Considerations (if any)
• Environment Friendly
Major Raw Materials to be Utilized
• Low Grade Bauxite
IPR Status / Details (India/Abroad)
• Process Know how
Application/Uses
• Reduction reactive silica Increase alumina content,
decrease Fe content
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