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Dewatering method and agent 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C02F-001/56
출원번호 US-0150995 (1993-11-12)
발명자 / 주소
  • El-Shall Hassan E. (Valrico FL)
출원인 / 주소
  • Florida Institute of Phosphate Research (Bartow FL 02)
인용정보 피인용 횟수 : 31  인용 특허 : 0

초록

A method of dewatering mineral-containing sludge by adding to the sludge (a) an aqueous solution or emulsion of acrylamide polymer flocculating agent and (b) a microfiber additive. By using this method, such mineral-containing sludges can be quickly dewatered into a cake having 25-35% solids which c

대표청구항

A method of dewatering a mineral-containing aqueous sludge wherein the method comprises (a) disintegrating a fibrous material into a pulp of microfibers; (b) providing an aqueous solution or emulsion of flocculating agent; (c) activating flocculation of the solids in said sludge by introducing to th

이 특허를 인용한 특허 (31)

  1. Jogikalmath, Gangadhar; Schneider, Andrea; Soane, David S., Additives for papermaking.
  2. Spence, Jonathan; Bara, Barry; Lorentz, Jim; Mikula, Randy; Lee, Jiwon; Lahaie, Richard Daniel, Centrifuge process for dewatering oil sands tailings.
  3. Donoho, Christopher D., Disposable diaper with pouches.
  4. Jogikalmath, Gangadhar; Kincaid, Patrick D.; Reis, Lynn; Soane, David S., High strength paper.
  5. Bremer, Karl-Guenter; Buehl, Karl-Heinz, Method for filtering a liquid by the addition of a filtering aid.
  6. Berg, Michael C.; Dise, John H.; Mahoney, Robert P.; Petersen, Kevin T.; Soane, David S.; Stokes, Kristoffer K.; Ware, Jr., William; Thakrar, Atul C., Methods for removing finely dispersed particulate matter from a fluid stream.
  7. Clark, Mark Dwight; Dema, Keh; Sohn, Sungkyun; Smith, Ernest Phillip; Anderson, Chris Delbert; Everett, Charles Stuart, Paper and nonwoven articles comprising synthetic microfiber binders.
  8. Holt, Jason; Lindler, Malcolm Barry, Particle suspensions of flocculating polymer powders.
  9. Holt, Jason, Particle suspensions of flocculating polymer powders and powder flocculant polymer blends.
  10. Holt, Jason, Particle suspensions of flocculating polymer powders and powder flocculant polymer blends.
  11. Holt, Jason, Polymer blends for flocculation.
  12. Holt, Jason, Polymer blends for flocculation.
  13. Clark, Mark Dwight; Dema, Keh; Sohn, Sungkyun; Smith, Ernest Phillip; Anderson, Chris Delbert; Everett, Charles Stuart, Process for making paper and nonwoven articles comprising synthetic microfiber binders.
  14. D. R. Nagaraj ; Roderick G. Ryles ; Alan S. Rothenberg, Process for removing impurities from kaolin clays.
  15. Bracegirdle Paul E., Process for treating dredge detritus.
  16. Gupta, Rakesh Kumar; George, Scott Ellery; Klosiewicz, Daniel William; Seo, Kab Sik; Fleenor, Coralie McKenna; Crain, Allen Lynn, Process of making water-dispersible multicomponent fibers from sulfopolyesters.
  17. Parker, Kenny Randolph; Klosiewicz, Daniel William; Munjal, Ramesh Chand; Rogers, David J; Tremaine, Dustin A, Processes to produce short cut microfibers.
  18. Parker, Kenny Randolph; Klosiewicz, Daniel William; Munjal, Ramesh Chand; Rogers, Jr., David J.; Tremaine, Dustin A, Processes to produce short cut microfibers.
  19. Parker, Kenny Randolph; Klosiewicz, Daniel William; Munjal, Ramesh Chand; Rogers, Jr., David J; Tremaine, Dustin A, Processes to produce short cut microfibers.
  20. Parker, Kenny Randolph; Klosiewicz, Daniel William; Munjal, Ramesh Chand; Rogers, Jr., David J; Tremaine, Dustin A, Processes to produce short cut microfibers.
  21. Parker, Kenny Randolph; Klosiewicz, Daniel William; Munjal, Ramesh Chand; Rogers, Jr., David J; Tremaine, Dustin A, Processes to produce short cut microfibers.
  22. Parker, Kenny Randolph; Klosiewicz, Daniel William; Munjal, Ramesh Chand; Rogers, David J.; Tremaine, Dustin A., Processes to produce short-cut microfibers.
  23. Bentley Michael David,ZAX ; McLeod Ashley Gary,ZAX ; Mjacu Nceba Aubrey,ZAX, Slimes treatment.
  24. Kincaid, Patrick D.; Mahoney, Robert P.; Soane, David, System, methods, processes and apparatus for removing finely dispersed particulate matter from a fluid stream.
  25. Soane, David S.; Ashcraft, Nathan; Kyaw, Phyo, Systems and methods for removing finely dispersed particles from mining wastewater.
  26. Berg, Michael C.; Dise, John H.; Petersen, Kevin T.; Soane, David S.; Stokes, Kristoffer K.; Ware, Jr., William; Thakrar, Atul C., Systems and methods for removing finely dispersed particulate matter from a fluid stream.
  27. Berg, Michael C.; Dise, John H.; Petersen, Kevin T.; Soane, David S.; Stokes, Kristoffer K.; Ware, Jr., William; Thakrar, Atul C., Systems and methods for removing finely dispersed particulate matter from a fluid stream.
  28. Soane, David S.; Ware, Jr., William; Mahoney, Robert P.; Ashcraft, Nathan, Systems and methods for removing finely dispersed particulate matter from a fluid stream.
  29. Parker, Kenny Randolph; Kirk, Shane Kipley, Ultrafiltration process for producing a sulfopolyester concentrate.
  30. Parker, Kenny Randolph; Kirk, Shane Kipley, Ultrafiltration process for the recovery of concentrated sulfopolyester dispersion.
  31. Gupta, Rakesh Kumar; Mitchell, Melvin Glenn; Klosiewicz, Daniel William; Clark, Mark Dwight; Anderson, Chris Delbert; Mitchell, Marvin Lynn; Mitchell, Paula Hines; Wolfe, Amber Layne, Wet-Laid process to produce a bound nonwoven article.
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