The Improvement of Grindability and Floatability of Oxidized Coal by Microwave Pre-treatment

REFERENCES

• Ahmed , H. A. M. and Drzymala , J. 2004 . Effect of flotation procedure and composition of reagents on yield of a difficult-to-float coal . Physicochem. Probl. Miner. Process. , 38 : 53 – 63 .
   Google Scholar
• Aplan , F. F. 1988 . “ How the nature of raw coal influences its cleaning. ” . In Industrial Practice of Fine Coal Process Edited by: Klimpel , R. R. and Luckie , P. T. 99 – 111 . Littleton , CO : SME. .
   Google Scholar
• Bolat , E. , Saglam , S. and Piskin , S. 1998 . The effect of oxidation on the flotation properties of a Turkish bituminous coal . Fuel Process. Technol. , 55 : 101 – 105 .
   Web of Science ®Google Scholar
• Bond , F. C. 1961 . Crushing and grinding calculations, Part I . Br. Chem. Eng. , 6 : 378 – 385 .
   Google Scholar
• Forbes , E. 2011 . Shear, selective and temperature responsive flocculation: A comparison of fine particle flotation techniques . Int. J. Miner. Process. , 99 : 1 – 10 .
   Web of Science ®Google Scholar
• Fuerstenau , D. W. and Diao , J. 1990 . Surface properties of coal and their role in coal beneficiation Berkeley , CA : University of California. . Technical progress report
   Google Scholar
• Fuerstenau , D. W. , Diao , J. , Hanson , J. S. , Sotillo , F. and Somasundaran , P. 1994 . “ Effect of weathering on the wetting behavior and flotation response of coal. ” . In New Trends in Coal Preparation Technologies and Equipment Edited by: Blaschke , W. S. and Breach , G. 747 – 753 . Amsterdam : Gordon and Breach. .
   Google Scholar
• Fuerstenau , D. W. , Sastry , K. V. S. , Hanson , J. S. , Harris , G. , Sotillo , F. , Diao , J. and Gosh , A. 1990 . Coal surface control for advanced fine coal flotation Berkeley , CA : California University. . (No. DOE/PC/88878-T8)
   Google Scholar
• Harris , G. H. , Diao , J. and Fuerstenau , D. W. 1995 . Coal flotation with nonionic surfactants . Coal Prep. , 16 : 135 – 147 .
   Google Scholar
• Jena , M. S. , Biswal , S. K. and Rudramuniyappa , M. V. 2008 . Study on flotation characteristics of oxidized Indian high ash sub-bituminous coal . Int. J. Miner. Process. , 87 : 42 – 50 .
   Web of Science ®Google Scholar
• Jia , R. , Harris , G. H. and Fuerstenau , D. W. 2000 . An improved class of universal collectors for the flotation of oxidized and/or low-rank coal . Int. J. Miner. Process. , 58 : 99 – 118 .
   Web of Science ®Google Scholar
• Laskowski , J. S. and Miller , J. D. 1984 . “ New reagents in coal flotation. ” . In Reagents in the Mineral Industry Edited by: Jones , M. J. and Oblatt , R. 145 – 154 . New York : The Institution of Mining and Metallurgy. .
   Google Scholar
• Lester , E. and Kingman , S. 2004a . The effect of microwave pre-heating on five different coals . Fuel , 83 : 1941 – 1947 .
   Web of Science ®Google Scholar
• Lester , E. and Kingman , S. 2004b . Effect of microwave heating on the physical and petrographic characteristics of a U.K. coal . Energy Fuels , 18 : 140 – 147 .
   Web of Science ®Google Scholar
• Lester , E. , Kingman , S. and Dodds , C. 2005 . Increased coal grindability as a result of microwave pretreatment at economic energy inputs . Fuel , 84 : 423 – 427 .
   Web of Science ®Google Scholar
• Lester , E. , Kingman , S. , Dodds , C. and Patrick , J. 2006 . The potential for rapid coke making using microwave energy . Fuel , 85 : 2057 – 2063 .
   Web of Science ®Google Scholar
• Meikap , B. C. , Purohit , N. K. and Mahadevan , V. 2005 . Effect of microwave pretreatment of coal for improvement of rheological characteristics of coal-water slurries . J. Colloid Interface Sci. , 281 : 225 – 235 .
   PubMed Web of Science ®Google Scholar
• Ozbayoglu , G. , Depci , T. and Ataman , N. 2009 . Effect of microwave radiation on coal flotation . Energy Sources, Part A , 31 : 492 – 499 .
   Web of Science ®Google Scholar
• Piskin , S. and Akgun , M. 1997 . The effect of premixing on the floatation of oxidized Amasra coal . Fuel Process. Technol. , 51 : 1 – 6 .
   Web of Science ®Google Scholar
• Sahoo , B. K. , De , S. and Meikap , B. C. 2011 . Improvement of grinding characteristics of Indian coal by microwave pre-treatment . Fuel Process. Technol. , 92 : 1920 – 1928 .
   Web of Science ®Google Scholar
• Sahoo , B. K. , De , S. , Carsky , M. and Meikap , B. C. 2010 . Enhancement of rheological behavior of Indian high ash coal-water suspension by using microwave pre-treatment . Ind. Eng. Chem. Res. , 49 : 3015 – 3021 .
   Web of Science ®Google Scholar
• Scheludko , A. , Toshev , B. V. and Bojadjiev , D. T. 1976 . Attachment of particles to a liquid surface (capillary theory of flotation) . J. Chem. Soc., Faraday Trans. 1 , 72 : 2815 – 2828 .
   Google Scholar
• Sokolovic , J. M. , Stanojlovic , R. D. and Markovic , Z. S. 2012 . Activation of oxidized surface of anthracite waste coal by attrition . Physicochem. Probl. Miner. Process. , 48 : 5 – 18 .
   Web of Science ®Google Scholar
• Tao , D. , Johnson , S. and Parekh , B. K. 2002 . A flotation study of refuse pond coal slurry . Fuel Process. Technol. , 76 : 201 – 210 .
   Web of Science ®Google Scholar
• Wang , H. H. , Dlugogorski , B. Z. and Kennedy , E. M. 2003 . Coal oxidation at low temperatures: Oxygen consumption, oxidation products, reaction mechanism and kinetic modeling . Prog. Energy Combus. Sci. , 29 : 487 – 513 .
   Web of Science ®Google Scholar
• Yuh , S. J. and Wolt , E. E. 1983 . FTIR studies of potassium catalyst treated gasified coal chars and carbon . Fuel , 62 : 252 – 255 .
   Web of Science ®Google Scholar