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New PDF release: Fossil Fuels Utilization. Environmental Concerns

By Richard & Bernard D. Blaustein, eds. Markuszewski

ISBN-10: 0841209901

ISBN-13: 9780841209909

ISBN-10: 0841211566

ISBN-13: 9780841211568

Publication through Marhuszewski, Richard and Bernard Blaustein, Eds

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10. 75-83. A t t i a , Υ. , and Kitchener, D. , "Development of Complexing Polymers f o r the Selective F l o c c u l a t i o n of Copper Minerals", Eleventh Inter. Miner. Process. , C a g l i a r i , I t a l y , 1974. A t t i a , Υ. , and Fuerstenau, D. , " F e a s i b i l i t y of Cleaning High Sulfur Coal Fines by Selective F l o c c u l a t i o n " , Fourteenth Intern. Miner. , Toronto, Canada, 1 9 8 2 . A t t i a , Υ. , in "Processing and Utilization of High Sulfur Coals"; A t t i a , Υ. , E l s e v i e r , Amsterdam, 1985, pp.

Removal of mineral matter from bituminous coals by aqueous chemical leaching," Fuel Processing Technol. 9, 217-233 (1984). 6. ; Chakrabarty, J. N. "Removal of sulphur from Indian coals by sodium hydroxide leaching," J. Inst. Energy, Dec. 1984, pp. 438-443. 7. Wheelock, T. D. "Oxydesulfurization of coal in alkaline solutions," Chem. Eng. Commun. 12(1-3), 137-160 (1981). 8. ; Wheelock, T. D. Process for producing low-ash, low-sulfur coal, Am. Chem. Soc. Div. Fuel Chem. Preprints, 29(1), 114-119 (1984).

Table I I . , %S % Removed Recov. 1 13,482 13,699 13,581 13,581 13,176 13,510 13,962 12,825 12,450 12,489 12,245 12,312 13,004 Standard conditions are: 10:1 caustic/coal r a t i o , 4:1 NaOH/KOH r a t i o , 370°C f o r 1 hour, 2L hot water (100 C) wash, 1L 10% H ^ wash (60 C), 4L hot H 0 wash (100 C). Only nonstandard conditions are l i s t e d . % Sulfur and % ash are reported on a dry b a s i s . % Recovered = % grams MAF coal out χ 100 grams MAF coal in e e e 2 2 3 E f f e c t of Various Washings on S u l f u r Forms.

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Fossil Fuels Utilization. Environmental Concerns by Richard & Bernard D. Blaustein, eds. Markuszewski


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