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Method for improving the pozzolanic character of fly ash 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B03B-009/04
  • B03B-007/00
출원번호 US-0921296 (1997-08-29)
발명자 / 주소
  • Groppo
  • Jr. John G.
  • Robl Thomas L.
  • McCormick Charles J.
출원인 / 주소
  • University of Kentucky Research Foundation
대리인 / 주소
    King and Schickli
인용정보 피인용 횟수 : 28  인용 특허 : 16

초록

A method for improving the pozzolanic character of fly ash includes the steps of first hydraulically classifying and then flotation separating the fly ash in order to reduce particle size distribution and remove carbon. The method also includes the steps of spiral concentrating separated coarse part

대표청구항

[ We claim:] [1.] A method for improving pozzolanic character of fly ash, comprising:hydraulically classifying said fly ash in order to substantially remove coarse particles greater than 75 microns; andsubjecting fine particles from the hydraulic classifying to flotation to remove remaining carbon a

이 특허에 인용된 특허 (16)

  1. Lisowyj Bohdan (Omaha NE) Hitchcock David C. (Omaha NE), Beneficiation of gallium in fly ash.
  2. Taylor David W. (Edgemont PA), Coal treatment process.
  3. Hurst ; Vernon J. ; Styron ; Robert W., Fly ash benificiation process.
  4. Lewis Robert M. (15 Valley View Dr. Candler NC 28715), Lewis econosizer for hydraulically classifying particles.
  5. Pelletier Robert A. (Rte. 15 ; Moreland Dr. Kingsport TN 37660), Method and apparatus for beneficiating coal.
  6. Rainis Andrew (Walnut Creek CA) Detz Clifford M. (San Rafael CA), Method for the production of metallurgical grade coal and low ash coal.
  7. Ashworth Robert A. (Tampa FL) Rodriguez Larry A. (St. Petersburg FL) Padilla Antonio A. (Tampa FL) Spake Ned B. (Winter Park FL) Berry W. Wes (Brandon FL) Schmeda Rae A. (Littleton CO), Method for the recovery of minerals and production of by-products from coal ash.
  8. Groppo ; Jr. John G. (Wilmore KY) Brooks Steven M. (Utica MI), Method of removing carbon from fly ash.
  9. Corbeels Roger J. (Wappingers Falls NY) Sengenberger Charles G. (Poughkeepsie NY), Partial oxidation with recycle of recovered carbon.
  10. Bierman Laurence W. (Pocatello ID) Polinsky Samuel M. (Pocatello ID) Humberger Roger B. (Pocatello ID), Process for beneficiating ores containing fine particles.
  11. Aunsholt Knud E. H. (Roskilde DKX), Process for the separation of coal particles from fly ash by flotation.
  12. Galgana Russell J. (Clarksville NY) Sutin Gordon L. (Dundas NY CAX) McNerney Michael (Delmar NY) Mahoney Patrick F. (Rensselaer NY), Recovery of useful materials from refuse fuel ash.
  13. Robertson Michael D. (Jacksonville Beach FL) Knoll Frank S. (Jacksonville FL), Spiral separator.
  14. Moorhead Robert G. (Blairsville PA) Davies Peter O. J. (Cornwall GBX), Two stage compound spiral separator and method.
  15. Hwang Jiann-Yang (Houghton MI), Wet process for fly ash beneficiation.
  16. Hwang Jiann-Yang (Houghton MI), Wet process for fly ash beneficiation.

이 특허를 인용한 특허 (28)

  1. Naji,Basil; O'Chee,Milton, Additive for dewaterable slurry and slurry incorporating same.
  2. Hurt Robert ; Suuberg Eric ; Gao Yu-Ming ; Burnett Alicia, Apparatus and method for deactivating carbon in fly ash.
  3. Hemmings, Raymond T.; Hill, Russell L.; Cornelius, Bruce J.; McBay, Aron, Asphalt composites including fly ash fillers or filler blends, methods of making same, and methods for selecting or modifying a fly ash filler for use in asphalt composites.
  4. Naji,Basil; O'Chee,Milton, Coatings for building products and dewatering aid for use with same.
  5. Naji, Basil; O'Chee, Milton, Coatings for building products and methods of making same.
  6. Lyons, David; Sukkar, Theresa, Composite cement article incorporating a powder coating and methods of making same.
  7. Hill, Russell L.; Crocco, Guy; Majors, Russ K., Composites formed from an absorptive filler and a polyurethane.
  8. Naji, Basil; Merkley, Donald J.; Zammit, Michael; Luo, Caidian, Durable medium-density fibre cement composite.
  9. Gleeson, James A.; Paradis, Kalynne H.; Sloane, Brian P.; Melmeth, David L.; Seligman, Dean M., Fiber cement building materials with low density additives.
  10. Gleeson, James A.; Paradis, Kalynne H.; Sloane, Brian P.; Melmeth, David L.; Seligman, Dean M., Fiber cement building materials with low density additives.
  11. Gleeson, James A.; Paradis, Kalynne H.; Sloane, Brian P.; Melmeth, David L.; Seligman, Dean M., Fiber cement building materials with low density additives.
  12. Gleeson, James A.; Paradis, Kalynne H.; Sloane, Brian P.; Melmeth, David L.; Seligman, Dean M., Fiber cement building materials with low density additives.
  13. Hemmings,Raymond T.; Hill,Russell L.; Cornelius,Bruce J., Filler comprising fly ash for use in composites.
  14. Hemmings, Raymond T.; Hill, Russell L.; Cornelius, Bruce J., Filler comprising fly ash for use in polymer composites.
  15. Hemmings, Raymond T.; Hill, Russell L.; Cornelius, Bruce J., Filler comprising fly ash for use in polymer composites.
  16. Wu Chiung-Hsin,TWX, Froth floatation process for separating carbon from coal ash.
  17. Styron Robert William ; Abiodun Kamal Seyi, Method of making a mineral filler from fly ash.
  18. Ramme, Bruce W.; Noegel, John J.; Rohatgi, Pradeep K., Separation of cenospheres from fly ash.
  19. Ramme, Bruce W.; Noegel, John J.; Rohatgi, Pradeep K., Separation of cenospheres from fly ash.
  20. Kipp, Michael D.; Pugh, Dilworth L.; Ridges, Michael D.; McCarvill, William T., Shear panel building material.
  21. Kipp, Michael D.; Pugh, Dilworth L.; Ridges, Michael D.; McCarvill, William T., Sound attenuation building material and system.
  22. Kipp, Michael D.; Pugh, Dilworth L.; Ridges, Michael D.; McCarvill, William T., Sound attenuation building material and system.
  23. Cottier, John Sydney; Cowen, December Rose; Dunoyer, Remi; Duselis, Steven; Gleeson, James Albert; Kumar, Amitabha, Structural fiber cement building materials.
  24. Duselis, Steven Alfred; Gleeson, James; Kascelan, Tihomir; Lyons, David; O'Chee, Milton Terrence, Surface sealed reinforced building element.
  25. Robl, Thomas L.; Groppo, John G., Technology and methodology for the production of high quality polymer filler and super-pozzolan from fly ash.
  26. Kipp, Michael D.; Pugh, Dilworth L.; Ridges, Michael D.; McCarvill, William T., Utility materials incorporating a microparticle matrix.
  27. Kipp, Michael D.; Ridges, Michael D.; McCarvill, William T.; Pugh, Dilworth L., Utility materials incorporating a microparticle matrix.
  28. Kipp, Michael D.; Pugh, Dilworth L.; Ridges, Michael D.; McCarvill, William T., Utility materials incorporating a microparticle matrix formed with a setting agent.
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