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특허 상세정보

Method for countercurrent treatment of slurries

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) D21C-009/02   
미국특허분류(USC) 162/060 ; 162/204 ; 608/044 ; 210/783 ; 210/928
출원번호 US-0055847 (1998-04-06)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Weiss & Weiss PCWeiss
인용정보 피인용 횟수 : 30  인용 특허 : 16
초록

An aqueous slurry containing dissolved solids and a high concentration of suspended solids is positioned as a mat between a pair of porous endless belts to provide a composite structure. The composite structure is moved through a treating zone and subjected to alternate stages of compression and relaxation. In a preferred mode, the compression and relaxation are achieved by passing the composite structure over a series of spaced rolls in a manner such that a first belt of the pair is in direct contact with one of the rolls and a second belt of the pair i...

대표
청구항

[ I claim:] [1.]1. A method of treating a liquid slurry comprising the steps of positioning a mat having a liquid phase and containing material selected from the group consisting of dissolved solids, suspended solids and mixtures thereof comprising solid contaminants between a pair of porous endless belts to provide a composite structure, moving the composite structure through a treating zone and subjecting the mat to alternate stages of compression and relaxation, passing a liquid stream containing a substance selected from the group consisting of disso...

이 특허에 인용된 특허 (16)

  1. Seifert Peter (Middletown OH). Apparatus and method for washing cellulosic pulp. USP1992065122229.
  2. North Merle W. (Beloit WI). Apparatus for removing ash from repulped wastepaper. USP1991095045181.
  3. Vikio Pentti (Kerimaki FIX). Apparatus for treating white water. USP1994115368693.
  4. Meredith Michael D. (Tigard OR). Centrifugal washer for paper pulp with means to feed pulp as a thin sheet. USP1991055013460.
  5. Sbaschnigg Johann (Graz ATX) Resch Franz (Graz ATX). Material processing system. USP1990074938038.
  6. Biondetti Mario (Schio ITX) Baur Roland (Weingarten CHX). Method and apparatus for washing stock suspensions by removing undesired material through an endless wire. USP1985024501040.
  7. Kangas Martti Y. O. (P.O. Box 2470 Decatur GA 30031). Method for cleaning fibers. USP1992055114536.
  8. Corbellini Glauco (33100 Via Carducci 48 Udine ITX) Rodriguez Peter A. (1785 Selva Marina Dr. Atlantic Beach FL 32233). Method for recovering pulp solids from whitewater using a siphon. USP1993035196090.
  9. Germg.ang.rd Ulf,SEX ; Norden Solveig,SEX. Method of removing metal ions dissolved in the bleach plant waste water. USP1998045741398.
  10. Hoffman Roger P.. Method of washing a thin mat of cellulosic pulp. USP1998055753074.
  11. Haapamki Pertti (Montreal CAX) Tuomi Alpo (Pori FIX). Method of washing cellulosic pulp submerged in washing liquid. USP1987054664749.
  12. Kankaanpaa ; Matti. Paper machine with twin-wire former. USP1978094113556.
  13. Bastanzuri Remberto P. (Miami FL). Process for removing ink particles from paper products. USP1987074680088.
  14. Bleakley Ian S. (St. Austell GBX) Toivonen Hannu O. E. (St. Austell GBX). Recovery of water and solids in a paper mill. USP1996095558782.
  15. Rowland Steve (Ste. Thrse CAX). Slurry rising apparatus and method therefor. USP1993045204009.
  16. Phipps Jonathan Stuart,GBX. Treatment of solid containing material derived from effluent of wastepaper treating plant. USP1998125846378.

이 특허를 인용한 특허 피인용횟수: 30

  1. Fornara, Wout; Gout, Martin; Sumner, Jr., Charles Edwan. Carboxylic acid production process employing solvent from esterification of lignocellulosic material. USP2013068455680.
  2. Janka, Mesfin Ejerssa; Sumner, Jr., Charles Edwan; Howard, Adam Scott; Parker, Kenny Randolph. Carboxylic acid production process employing solvent from esterification of lignocellulosic material. USP2013128614350.
  3. Lyons, David; Sukkar, Theresa. Composite cement article incorporating a powder coating and methods of making same. USP2011087998571.
  4. Naji, Basil; Merkley, Donald J.; Zammit, Michael; Luo, Caidian. Durable medium-density fibre cement composite. USP2011087993570.
  5. Gleeson, James A.; Paradis, Kalynne H.; Sloane, Brian P.; Melmeth, David L.; Seligman, Dean M.. Fiber cement building materials with low density additives. USP2010067727329.
  6. Gleeson, James A.; Paradis, Kalynne H.; Sloane, Brian P.; Melmeth, David L.; Seligman, Dean M.. Fiber cement building materials with low density additives. USP2010027658794.
  7. Gleeson, James A.; Paradis, Kalynne H.; Sloane, Brian P.; Melmeth, David L.; Seligman, Dean M.. Fiber cement building materials with low density additives. USP2013128603239.
  8. Gleeson, James A.; Paradis, Kalynne H.; Sloane, Brian P.; Melmeth, David L.; Seligman, Dean M.. Fiber cement building materials with low density additives. USP2012058182606.
  9. Merkley, Donald J.; Luo, Caidian. Fiber cement composite material using biocide treated durable cellulose fibers. USP2004086777103.
  10. Luo, Caidian; Merkley, Donald J.. Fiber cement composite materials using bleached cellulose fibers. USP2012128333836.
  11. Merkley, Donald J.; Luo, Caidian. Fiber cement composite materials using cellulose fibers loaded with inorganic and/or organic substances. USP2005036872246.
  12. Merkley, Donald J.; Luo, Caidian. Fiber cement composite materials using cellulose fibers loaded with inorganic and/or organic substances. USP2004016676744.
  13. Merkley, Donald J.; Luo, Caidian. Fiber cement composite materials using sized cellulose fibers. USP2004016676745.
  14. Merkley, Donald J.; Luo, Caidian. Fiber cement composite materials using sized cellulose fibers. USP2010107815841.
  15. Luo, Caidian; Merkley, Donald J.. Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility. USP2010127857906.
  16. Luo,Caidian; Merkley,Donald J.. Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility. USP2008037344593.
  17. Merkley, Donald J.; Luo, Caidian. Method and apparatus for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials. USP2012098268119.
  18. Merkley, Donald J.; Luo, Caidian. Method and apparatus for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials. USP2012038133352.
  19. Lin,Robert. Process for production of a carboxylic acid/diol mixture suitable for use in polyester production. USP2008037339072.
  20. Lin,Robert. Process for production of a carboxylic acid/diol mixture suitable for use in polyester production. USP2007107276625.
  21. Lin,Robert; Upshaw,Timothy Alan; Hall,Duane Alan; Parker,Kenny Randolph. Process for production of a carboxylic acid/diol mixture suitable for use in polyester production. USP2007067226986.
  22. Lin,Robert; Upshaw,Timothy Alan; Hall,Duane Alan; Parker,Kenny Randolph. Process for production of a carboxylic acid/diol mixture suitable for use in polyester production. USP2007037193109.
  23. Parker, Kenny Randolph; Lin, Robert; Gibson, Philip Edward. Process for production of a carboxylic acid/diol mixture suitable for use in polyester production. USP2009107601795.
  24. Parker,Kenny Randolph; Lin,Robert; Gibson,Philip Edward. Process for production of a carboxylic acid/diol mixture suitable for use in polyester production. USP2007057214760.
  25. Sheppard,Ronald Buford; Tennant,Brent Alan; Woodruff,Thomas Earl; Lin,Robert. Process for the oxidative purification of terephthalic acid. USP2007017161027.
  26. Sheppard,Ronald Buford; Tennant,Brent Alan; Woodruff,Thomas Earl; Lin,Robert. Process for the oxidative purification of terephthalic acid. USP2006077074954.
  27. Sheppard,Ronald Buford; Tennant,Brent Alan; Woodruff,Thomas Earl; Lin,Robert; O'Meadhra,Ruairi Seosamh. Process for the oxidative purification of terephthalic acid. USP2008047358392.
  28. Sumner, Jr.,Charles Edwan; Gibson,Philip Edward; Lin,Robert; Fugate,Eric Jackson; Arnold,Ernest William. Process for the purification of a crude carboxylic acid slurry. USP2006117132566.
  29. Cottier, John Sydney; Cowen, December Rose; Dunoyer, Remi; Duselis, Steven; Gleeson, James Albert; Kumar, Amitabha. Structural fiber cement building materials. USP2012078209927.
  30. Duselis, Steven Alfred; Gleeson, James; Kascelan, Tihomir; Lyons, David; O'Chee, Milton Terrence. Surface sealed reinforced building element. USP2015038993462.