Thermal Dehydroxylation and Phase transformation of Bayer’s Alumina

Sen, Prithwis C and Dutt, Ashimesh and Bhaskar Rao, H V (1964) Thermal Dehydroxylation and Phase transformation of Bayer’s Alumina. Other (TMP). CSIR-NML, Jamshedpur, Jamshedpur.

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Thermal Dehydroxylation of Bayer’s alumina has been studied by D.T.A., thermogravimetry, microscopy and x-ray with a view to understand the mechanism involved. Giving due consideration to the mechanisms suggested by previous workers and based on the experimental observations made in this study, it is suggested that aluminium tri-hydrate (gibbsite)breaks up in the first instance to mono and dehydrates which subsequently transform to α-Alumina through a series of intermediate phases which can be represented as follows: Al2O3.3H2O (Gibbsite )→xAl2O3.2H2O(Dihydrate)→ γ-Al2O3 → β-Al2O3→ α Al2O3 → → Al2O3.2H2O(Boemite)→ - δ -Al2O3 → -Al2O3 → θ-Al2O3→

Item Type:Project Reports (Other (TMP))
Uncontrolled Keywords:Thermal dehydroxylation, Bayer’s alumina, thermogravimetry, microscopy ,x-ray,α-alumina
Divisions:Information Management and Dissemination Centre
ID Code:8764
Deposited By:Dr Mita Tarafder
Deposited On:22 Apr 2022 15:34
Last Modified:19 Jul 2022 16:42
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