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Vol 202
Pages:
35
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Thermodynamic analysis of aluminium hydroxide calcination at alumina production

Authors:
V. M. Sizyakov1
L. A. Voropanova2
About authors
  • 1 — National Mineral Resources University (Mining University)
  • 2 — North-Caucasus Mining and Metallurgy Institute (state technological university)
Date submitted:
2012-09-25
Date accepted:
2012-11-09
Date published:
2013-03-01

Abstract

The thermodynamic analysis of aluminium hydroxide dehydration during calcination process at alumina production is carried out. The calcination of aluminium hydroxide is possible at ordinary pressure and temperature value more than 600 K. Diaspor dehydration process is possible by way of freezeout of water as an ice, water rendering or heating till decomposition temperature.

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References

  1. Воропанова Л.А. Обезвоживание осадка гидроксида цинка, полученного нейтрализацией водным аммиаком слабоконцентрированных растворов сульфата цинка / Л.А.Воропанова, Л.ГБаратов, В.Н.Ковалев // Журнал прикладной химии. 2010. T.83. Bып.11.
  2. Карапетьянц М.Х. Основные термодинамические константы неорганических и органических веществ / М.Х.Карапетьянц, М.Л.Карапетьянц. М., 1968.
  3. Краткий справочник физико-химических величин / Под ред. А.А.Равделя и А.М.Пономаревой. Л., 1983.
  4. Металлургия черных и цветных металлов / Е.В.Челищев, П.П.Арсентьев, В.В.Яковлев, Д.И.Рыжонков. М., 1993.
  5. Пат.2393249 РФ. С22В 19/34, 3/44, С02F 1/62.
  6. Способ получения оксида цинка из сернокислого раствора / Л.Г.Баратов, Л.А.Воропанова. Опубл. 27.06.10. Бюл. № 18.
  7. Рабинович В.А. Краткий химический справочник
  8. / В.А.Рабинович, З.Я.Хавин. Л., 1991.

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