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Vol 202
Pages:
75
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RUS

Selective activity of some sorbents of organic compounds in aluminate liquors

Authors:
E. V. Tikhonova1
E. V. Sizyakova2
About authors
  • 1 — National Mineral Resources University (Mining University)
  • 2 — National Mineral Resources University (Mining University)
Date submitted:
2012-09-28
Date accepted:
2012-11-01
Date published:
2013-04-29

Abstract

Sharp selectivity of hydrocarboaluminates of caustic-earth metals and magnesium oxide in relation to the most dangerous classes of  the organic  substances playing defining role in decrease in extent of decomposition level and deterioration of produced alumina properties– humic, carboxylic acids and high-molecular organic compounds are defined. Soda is good for humic acids sorption (about 40 %) also is inefficient for removal of carboxylic acids and high-molecular compounds. Harmful groups of organic substances generally provide chromaticity of aluminate liquors. The photometric analysis states an objective assessment of the content of the painted organic substances in relation to their initial quantity in aluminates   liquors.

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References

  1. Влияние органических соединений на декомпозицию алюминатных растворов / И.Д.Бибик, Ш.Ж.Жоробекова, Н.З.Насыров, Л.Н.Сынкова // Цветные металлы. 1984. № 9. С.43-45.
  2. Зайцев Ю.А. Исследование поведения окрашенных органических веществ при кристаллизации соды из алюминатных растворов / Ю.А.Зайцев, Л.В.Никитина, В.А.Липин // Сборник научных докладов. Апатиты, 2009. С.44-47.
  3. Органические кислоты в растворах глиноземного производства / А.Г.Широкова, Л.А.Пасечник, В.С.Анашкин, С.П.Яценко // Материалы конф. Красноярск. 2003. С.42-44.
  4. Jose Pulpeiro. Sizing an organic control system for the Bayer process // Light metals, 1998. P.89-94.
  5. Nicolas-Alexandre Bouchard. Dynamic adsorption isotherm for some hydrate active organics and selected degradation products with implication for gibbsite precipitation yields / Nicolas-Alexandre Bouchard, Raymond Breault, Raymond Breault, Yannick Chouinard, Hugues Menard // Light metals. 2005. P.197-202.
  6. Joanne Loh. The roles of adsorption in hydrate precipitation // Light metals. 2010. P.215-220.

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