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  • Alex, T. C.; Kumar, Rakesh; Roy, S. K.; Mehrotra, S. P. (Elsevier, 2013-05)
    This study pertains to alkali leaching of a high surface area synthetic boehmite prepared by thermal decomposition of gibbsite. Synthesised boehmite particles are found to be agglomerates of platelets. These particles are ...
  • Mehrotra, S. P.; Alex, T. C.; Greifzu, G.; Kumar, Rakesh (Springer India, 2016-01)
    Almost the entire metallurgical grade alumina is produced from bauxite using the Bayer process. The leaching conditions in Bayer process depend on various Al-oxyhydroxide minerals/phases present in the bauxite. Among the ...
  • Alex, T. C.; Kumar, Rakesh; Roy, S. K.; Mehrotra, S. P. (Elsevier, 2014-09)
    Gibbsite [γ-Al(OH)3] precipitated from Bayer leach liquor is mechanically activated in a planetary mill at ambient conditions. Mechanical activated (MA) gibbsite is characterized in terms of particulate characteristics, ...
  • Alex, T. C.; Kumar, Rakesh; Roy, S. K.; Mehrotra, S. P. (Elsevier, 2014-09)
    Mechanically induced reactivity of gibbsite in an attrition mill is focused in this paper. Reactivity of milled gibbsite, assessed in terms of its dehydroxylation and dissolution in alkali solution, is found to increase ...
  • Alex, T. C.; Kumar, Rakesh; Roy, S. K.; Mehrotra, S. P. (Elsevier, 2014-04)
    This paper explores the possibility of manoeuvring the reactivity of boehmite through mechanical activation (MA) for enhancing the solid/liquid reaction between boehmite and NaOH. Synthetic boehmite, prepared by thermal ...

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