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.
![[thumbnail of Thermal Dehydroxylation and Phase transformation of Bayer’s Alumina]](http://eprints.nmlindia.org/style/images/fileicons/application_pdf.png "Thermal Dehydroxylation and Phase transformation of Bayer’s Alumina")
PDF (Thermal Dehydroxylation and Phase transformation of Bayer’s Alumina)
R.R_181-64.pdf - Published Version
Restricted to NML users only. Others may use ->
Download (7MB) | Request a copy
Abstract
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 |
| Subjects: | Materials Science > Phase Transformation |
| Divisions: | Information Management and Dissemination Centre |
| Depositing User: | Users 43 not found. |
| Date Deposited: | 22 Apr 2022 10:04 |
| Last Modified: | 19 Jul 2022 11:12 |
| URI: | http://eprints.nmlindia.org/id/eprint/8764 |
Actions (login required)
- View Item