Effects of commercial modifiers on flow properties of hydrophobized limestone powders

• Autorzy: Vogt E.
• Języki publikacji: EN

Abstrakty

EN

Limestone powder popularly used as an anti-explosive agent in the mining industry and as an absorbent for exhaust fume desulphurization in the energy industry, both of which take advantage of the powder’s, favourable flow properties. In this project, evaluations of the influence of commercial modifiers on the flow properties of hydrophobized limestone powders were measured. The analysis was carried out on the basis of densimetric measurements with the use of a powder characteristics tester. It was stated that the hydrophobization process improves not only the waterproof properties of limestone powders, but also reduces cohesion and improves flow properties.

Słowa kluczowe

EN

commercial modifier; flow property; limestone powder; densitometric measurement; hydrophobization

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2013
• Tom: 22
• Numer: 4
• Opis fizyczny: p.1213-1218,fig.,ref.

Twórcy

autor

Vogt E.

• Faculty of Energy and Fuels, AGH University of Science and Technology, Al.A.Mickiewicza 30, 30-059 Krakow, Poland

Bibliografia

• 1. SZYMANEK A., NOWAK W. Mechanically activated limestone, Chemical and Process Engineering, 28, 127, 2007.
• 2. CASHDOLLAR K. L., SAPKO M. J. Explosion hazards of coal dust in the presence of methane in Handbook for methane control in mining, , DHHS (NIOSH) Publication No. 2006-127, 12, 147, 2006.
• 3. MAN C.K., TEACOACH K.A. How does limestone rock dust prevent coal dust explosions in coal mines? Min. Eng., 61, 9, 69, 2009.
• 4. JENIKE A.W. Storage and flow of solids. University of Utah, Eng. Exp. Station, Bull. 123, 1964.
• 5. HARNBY N., HAWKINS A.E., OPALIŃSKI I. Measurement of the adhesional force between individual particles with moisture present. Part 2: A novel measurement technique, Trans IChemE. 74, 616, 1996.
• 6. GANESAN V., MUTHUKUMARAPPAN K., ROSEN- TRATER K.A. Flow properties of DDGS with varying sol­uble and moisture contents using Jenike shear testing, Powder Technol. 187, 130, 2008.
• 7. QUESNEL D. J., RIMAI D. S., SCHAEFER D. M. Chapter 7 - Aspects of particle adhesion and removal, from devel­opments in surface contamination and cleaning: Fundamentals and applied aspects, by Kashmiri L. Mittal (Eds.), pp. 475-501, 2008.
• 8. McGEE E. The benefits of powder characterisation, SHAPA Technical Bulletin, 14, 1, 2009.
• 9. LUO Z.F., ZHU J.F., TANG L.G., ZHAO Y.M., GUO J., ZUO W., CHEN S.L. Fluidization characteristics of mag­netite powder after hydrophobic surface modification, Int. J. Miner. Process., 94, (3-4), 166, 2010.
• 10. MALICKA-SOCZKA A., DOMKA L., KOZAK A. Kaolin modyfied with silane compounds as a filler used in rubber industry, Physicochem. Probl. Miner. Process., 44, 151, 2010.
• 11. SIWIŃSKA-STEFAŃSKA K., KRYSZTAFKIEWICZ A., JESIONOWSKI T. Modification of hydrophilic/hydrophobic character of TiO2 surface using selected silane coupling agents , Physicochem. Probl. Miner. Process., 41, 205, 2007.
• 12. MIELCZARSKI E., MIELCZARSKI J.A. Surface modifi­cation at the molecular level in mineral beneficiation, Int. J. Miner. Process., 72, 129, 2003.
• 13. FORNAL. J., SADOWSKA J., BŁASZCZAK W., JELIŃSKI T., STASIAK M., MOLENDA M., HAJNOS M. Influence of some chemical modifications on the character­istics of potato starch powders, J. Food Eng. 108, 515, 2012.
• 14. The "Czatkowice" Limestone Mine, http://www.czatkowice. com.pl/oferta_handlowa.htm, January 2012.
• 15. BUCZEK B., VOGT E. A new method of production of non-explosive stone dusts, Twenty - Fourth Annual International Pittsburgh Coal Conference: Coal-Energy, Environment and Sustainable Development: September 10­14, Johannesburg, South Africa, PCC©2007. 1, 2007.
• 16. VOGT E. Hydrophobized limestone powder as an antiex­plosive agent. Pol. J. Environ. Stud., 20, 801, 2011.
• 17. VOGT E., OPALIŃSKI I. The comparison of properties of hydrophobized limestone powders produced in different methods, ICheaP-9 Conference, Chem. Engineer. Trans., 17, 1711, Editor Sauro Pierucci, ISBN 978-88-95608-01-3, 2009.
• 18. DOMASŁOWSKI W., KĘSY-LEWANDOWSKA M., ŁUKASZEWICZ J. W. Research on conservation of brick walls., Uniw. M. Kopernika, Toruń 2004 [In Polish].
• 19. Polish Standard PN-G-11020, Mining-antiexplosive stone dust. 1994.
• 20. DANG-VU T., HUPKA J. Characterization of porous mate­rials by capillary rise method, Physicochemical Problems of Mineral Processing, 39, 47, 2005.
• 21. FUERSTENAU D.W., WILLIAMS M.C. Characterization of hydrophobicity of particles by film flotation, Colloid. Surface., 22, 87, 1987.
• 22. CARR R. Classifying Flow Properties of Solids, Chem. Eng. 72, 163, 1965.
• 23. GELDART D., WONG A.C.Y. Fluidization of powders showing degrees of cohesiveness - II. Experiments on rates of de-aeration. Chem. Eng. Sci., 40, (4), 653, 1985.
• 24. GELDART D. Types of gas fluidization, Powder Technol., 7, (5), 285, 1973.
• 25. Index tables. Handbook of powder characteristics tester. Hosokawa Micron Corporation. Reprinted from Carr R., with approval of Mr. R. Carr and the copyright owner McGraw-Hill Incorporated, New York., 10036, U.S.A. Chem. Eng., 18, 166, 1965.
• 26. Tablets & Capsules: Powder Density in Solid Dosage Forms, M.A. Thomas, Quantachrome Corporation, 2005.
• 27. GANESAN V., ROSENTRATER K.A., MUTHUKU- MARAPPAN K. Flowability and handling characteristics of bulk solids and powders - a review with implications for DDGS, Biosystems Engineering, 101, (4), 425, 2008. http://www.quantachrome.com/articles_pdf/tablets_capsule s.pdf, January 2012.
• 28. HAUSNER H. H. Friction conditions in a mass of metal powder. Int. J. Powder Metall., 3, 7, 1967.
• 29. Powder and Bulk Dot Com Video Center, http://www.powderandbulk.com/videos/view_video.php7vi ewkey=1b7d5eabf33396c2683a, January 2012.
• 30. KUCHII S., TOMITA Y. Flushing phenomenon of fine pow­der, Powder Technol., 126, (3), 275, 2002.
• 31. SVAROVSKY L. Powder Testing Guide, Methods of Measuring the Physical Properties of Bulk Powders, Elselvier, England 1987.