Selective activity of some sorbents of organic compounds in aluminate liquors
About authors
- 1 — postgraduate student National Mineral Resources University (Mining University)
- 2 — Ph.D. associate professor National Mineral Resources University (Mining University)
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.
Область исследования:
(Archived) Without section
Keywords:
colored organic compounds
aluminate liquors
selective sorption
purification from organic chemistry
Bayer's technology
Funding:
None
References
- Bibik I.D. Influence of organic compounds on decomposition of aluminate liquors // Nonferrous metalls. 1984. N 9. P.43-45.
- Zaytsev Yu.A. Investigation of colored organic compounds behavior during soda crystallization // Conf. paper. Apatity, 2009. P.44-47.
- Shirokova A.G. Organic acids in aluminate liquors of alumina production // Conf. paper BAP. 2003. P.42-44.
- Jose Pulpeiro. Sizing an organic control system for the Bayer process // Light metals, 1998. P.89-94.
- 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.
- Joanne Loh. The roles of adsorption in hydrate precipitation // Light metals. 2010. P.215-220.
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