Decomposition of Bayer process organics: Phenolates, polyalcohols, and additional carboxylates

Hydrometallurgy

Volumn 107, Issue 3-4, 2011, Pages 68-73

  MacHold, T ^a   Laird, D W ^a   Rowen, C C ^a   May, P M ^a   Hefter, G T ^a  

^a MURDOCH UNIVERSITY   (Australia)

Author keywords

Bayer process; Degradation; Organic compounds; Sodium hydroxide solution, aromatics, aliphatics

Indexed keywords

ALIPHATIC CARBOXYLATE; AROMATIC CARBOXYLATE; BAYER PROCESS; DEGRADATION PRODUCTS; HYDROXYL GROUPS; LOW MOLECULAR WEIGHT; NMR SPECTROSCOPY; ORGANIC REACTION MECHANISMS; ORGANICS; POLYALCOHOLS; SODIUM HYDROXIDE SOLUTION, AROMATICS, ALIPHATICS;

AROMATIZATION; CARBOXYLATION; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; ORGANIC COMPOUNDS; PHENOLS; SODIUM;

DEGRADATION;

EID: 79953233437     PISSN: 0304386X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.hydromet.2011.01.008     Document Type: Article

References (28)

1. A. Alamdari, J.A. Raper, and M.S. Wainwright Poisoning of the precipitation of alumina trihydrate by mannitol Light Met. 1993 143 149 (Pubitemid 23692570)
2. W. Arnswald, H. Kaltenberg, and E. Guhl Removal of organic carbon from Bayer liquor by wet oxidation in tube digesters Light Met. 1991 23 27
3. P. Atkins, and S.C. Grocott Impact of organic impurities on the product of refined alumina Proceedings of Science, Technology and Utilisation of Humic Acids, CSIRO Division of Coal and Energy Technology, Sydney, Australia 1988 85 94
4. A.R. Baker, A.M. Greenaway, and C.W. Ingram A microwave digestion-based determination of low molecular weight organic acids in Bayer process liquor Talanta 42 1995 1355 1360
5. N. Brown Kinetics of copper-catalysed oxidation of Bayer liquor organics Light Met. 1989 121 130 (Pubitemid 20662263)
6. P.S. Coffey, and M. Ioppolo-Armanios Identification of the odour and chemical composition of alumina refinery air emissions Water Sci. Technol. 50 2004 39 47 (Pubitemid 39264263)
7. A. Costine, J. Loh, R. McDonald, and G. Power Unique high-temperature facility for studying organic reactions in the Bayer process Light Met. 2010 47 52
8. A.V. Ellis, M.A. Wilson, and K. Kannangara Bayer poisons: degradation of angiosperm and gymnosperm water-soluble extracts in sodium hydroxide at 145 °C Ind. Eng. Chem. Res. 41 2002 2842 2852 (Pubitemid 34625734)
9. L.E. Erickson, and R.A. Alberty Kinetics and mechanism of the base-catalysed hydration of fumarate to malate J. Phys. Chem. 63 1959 705 709
10. S.C. Grocott Bayer liquor impurities: measurement of organic carbon oxalate and carbonate extractions from bauxite digestives Light Met. 1988 833 841
11. S.C. Grocott, and S.P. Rosenberg Soda in Alumina: Possible Mechanisms for Soda Incorporation Proceedings of the Third International Alumina Quality Workshop, Gladstone, Australia 1988 271 287
12. J.D. Guthrie, P.J. The, and W.D. Imbrogno Characterization of organics in Bayer liquors Light Met. 1984 127 146
13. G. Lever Identification of organics in Bayer liquor Light Met. 1978 71 83
14. J. Loh, G. Brodie, G. Power, and C. Vernon Mechanisms of Degradation of Hydrate Yield Inhibitors by Wet Oxidation Proceedings of the 8th International Alumina Quality Workshop, Darwin, Australia 2008 199 205
15. J. Loh, G. Brodie, G. Power, and C. Vernon The effects of wet oxidation on hydrate yield inhibitors in alkaline aluminate solutions Light Met. 2008 181 186
16. J. Loh, G. Brodie, G. Power, and C. Vernon Wet oxidation of precipitation yield inhibitors in sodium aluminate solutions: effects and proposed degradation mechanisms Hydrometallurgy 104 2010 278 289
17. T. Machold, E. Macedi, D.W. Laird, P.M. May, and G.T. Hefter Decomposition of Bayer process organics: low-molecular-weight carboxylates Hydrometallurgy 99 2009 51 57
18. K. Niemelä The formation of hydroxyl monocarboxylic acids and dicarboxylic acids by alkaline thermochemical degradation of cellulose J. Chem. Tech. Biotechnol. 48 1990 17 28 (Pubitemid 20138654)
19. G. Power, and J. Loh Organic compounds in the processing of lateritic bauxites to alumina part 1: origins and chemistry of organics in the Bayer process Hydrometallurgy 105 2010 1 29
20. G.P. Power, and W. Tichbon Sodium Oxalate in the Bayer Process: Its Origin and Effects Proceedings of the 2nd International Alumina Quality Workshop, Perth, Australia 1990 99 115
21. M.B. Smith, and J. March March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure 5th Ed. 2001 Wiley New York
22. J. Tardio, S. Bhargava, S. Eyer, M. Sumich, and D.B. Akolekar Interactions between specific organic compounds during catalytic wet oxidation of Bayer liquor Ind. Eng. Chem. Res. 43 2004 847 851 (Pubitemid 38198937)
23. J. Tardio, S. Bhargava, S. Eyer, and D.B. Akolekar Low-temperature wet oxidation of sodium salts of low molecular weight mono- and dicarboxylic acids in synthetic Bayer liquor Ind. Eng. Chem. Res. 43 2004 669 674 (Pubitemid 38134122)
24. J. Tardio, S. Bhargava, J. Prasad, and D.B. Akolekar Catalytic wet oxidation of the sodium salts of citric, lactic, malic and tartaric acids in highly alkaline, high ionic strength solution Top. Catal. 33 2005 193 199
25. T.J. Whelan, A.V. Ellis, G.S.K. Kannangara, C.P. Marshall, D.E. Smeulders, and M.A. Wilson Macromolecules in the Bayer process Rev. Chem. Eng. 19 2003 431 471 (Pubitemid 37462770)
26. M.A. Wilson, G.J. Farquharson, J.M. Tippett, R.A. Quezada, and L. Armstrong Aluminophilicity of the humic acid degradation product 5-hydroxybenzene-1,3-dicarboxylic acid Ind. Eng. Chem. Res. 37 1998 2410 2415 (Pubitemid 128717996)
27. M.A. Wilson, A.V. Ellis, G.S.H. Lee, H.R. Rose, X. Lu, and B.R. Young Structure of molecular weight fractions of Bayer humic substances. 1. Low-temperature products Ind. Eng. Chem. Res. 38 1999 4663 4674 (Pubitemid 129611851)
28. J.B. Xiao, X.Y. Jiang, and X.Q. Chen Separation and determination of organic acids and inorganic anions in Bayer liquors by ion chromatography after solid-phase extraction J. Anal. Chem. 62 2007 756 760 (Pubitemid 47221421)