Medium-temperature calcination and acid pressure leaching extract the Al<sub>2</sub>O<sub>3</sub> from coal gangue: activation mechanism and kinetic analysis
Zhiyong Yang, Yunsheng Zheng, Zhijun Ma, Liang Cheng, Guangming Wang, Ying Qin
Abstract
Bauxite is an important strategic resource, and it is facing with the problem of balance between high demand of bauxite ore and low resource of bauxite reserves in China.
Topics & Concepts
BauxiteCalcinationActivation energyGangueLeaching (pedology)MuscoviteChemistryArrhenius equationCoalKaoliniteInorganic chemistryChemical engineeringMineralogyMetallurgyMaterials scienceCatalysisGeologyQuartzPhysical chemistryOrganic chemistrySoil waterSoil scienceEngineeringBauxite Residue and UtilizationCoal and Its By-productsRecycling and utilization of industrial and municipal waste in materials production