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Vol 154
Pages:
159-163
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Development of technology for obtaining new products in the complex processing of nepheline

Authors:
V. M. Sizyakov
About authors
  • G.V. Plekhanov Saint Petersburg Mining University
Date submitted:
2002-08-09
Date accepted:
2002-09-23
Date published:
2003-03-01

Abstract

Expansion of the product range will always be one of the urgent tasks of increasing the efficiency of complex processing of nepheline. At present, the most prepared for industrial implementation are the technologies for processing of ultra-deep desilting hydrogranate slurries into foundry cements and obtaining dry calcium hydrocarboamminates for use in various sectors of the economy (production of quick-hardening shrinkage-free cements, waterproofing materials, sealants, cement slurries, coagulants, etc.). For theoretical justification of the mentioned technologies the parameters of thermal decomposition of weakly saturated calcium hydrogranates (constituting the basis of ultra-deep desilting slimes) and calcium hydrocarboaluminates were investigated. According to the results of the studies technological regulations were developed and pilot batches of new products were produced.

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References

  1. Сизяков В.М. Повышение качества глинозема и попутной продукции при переработке нефелинов / В.М.Сизяков, В.И.Корнеев, В.В.Андреев. М.: Металлургия, 1986. 115 с.
  2. Сизяков В.М. К вопросу кинетики образования и устойчивости гидрокарбоалюминатов кальция в алюминатно-щелочных растворах / В.М.Сизяков, А.Е.Исаков, И.А.Дибров // Цветные металлы. 2000. №9. С.120-125.
  3. Сизяков В.М. Опыт работы ОАО «Пикалевское объединение "Глинозем"» по модернизации и реконструкции производства / В.М.Сизяков, А.А. Кузнецов // Цветные металлы. 1999. № 9. С. 74-79.
  4. Третьяков Ю.Д. Твердофазные реакции. М.: Химия, 1978. 359 с.
  5. Уэндланд У. Термические методы анализа. М.: Мир, 1978. 521 с.
  6. Пат. 1556525 РФ. Способ получения ненасыщенных твердых растворов ангидродов СО2 и/или SO2 в кристаллической решетке гидроалюмината кальция / В.М.Сизяков, Х.А.Бадальяни, Е.А.Исаков (РФ).
  7. Пат. 2136621 РФ. Вяжущее / В.М.Сизяков, Е.А.Исаков, В.И.Корнеев, А.А.Кузнецов {РФ).

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