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특허 상세정보

Method for beneficiating discolored kaolin to produce high brightness coating clay

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B03D-003/06    C04B-033/04    C04B-033/10   
미국특허분류(USC) 106/487 ; 106/488 ; 501/148 ; 252/18726
출원번호 US-0546398 (1995-10-18)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 32  인용 특허 : 8
초록

A method for beneficiating a low brightness fine particle size discolored kaolin crude to produce a high brightness coating clay. By combining the two beneficiating techniques of selective flocculation and ozonation, a synergistic phenomena occurs and a clay product of superior brightness and whiteness can be obtained from fine discolored clays that cannot be achieved by beneficiation with either process singularly. By passing the flocced clay through ozonation, the flocculant polymer left in the clay can be completely destroyed.

대표
청구항

A method for beneficiating a low brightness, fine particle size discolored kaolin crude to produce a high brightness coating clay having a brightness of a least 89, comprising the steps of: preparing a dispersed aqueous slurry from a fine particle size discolored crude kaolin having a solids content, a water washed G.E. brightness in the range of 75 to 85, a contaminant titania content of from 0.5 to 3.0%, a contaminant iron content of from 0 to 2%, expressed as Fe2O3, and a P.S.D. such that at least 85% by weight of the particles are of less than 2 m90%...

이 특허를 인용한 특허 피인용횟수: 32

  1. Shi Joseph C. S. ; Williams Charles Lamar ; Lowe Robert A. ; Basilio Cesar I.. Beneficiation with selective flocculation using hydroxamates. USP2000036041939.
  2. Manasso, John A.; Bilimoria, Bomi M.; McLain, Leslie A.; Constantin, Milton. Compositions and methods for making a coarse platey, high brightness kaolin product. USP2003046554892.
  3. Pruett, Robert J.; Alves, Paula R.. Compositions comprising fine sedimentary kaolin and methods for preparing same. USP2013068465583.
  4. Brown, H. Vincent; Pruett, Robert J.. Compositions comprising kaolin having nanosize dimensions. USP2010067727324.
  5. Moody, Gillian; Allen, Anthony; Adkins, Stephen; Dymond, Brian; Stocks, Paul. Concentration of suspensions. USP2012018097167.
  6. Moody, Gillian; Allen, Anthony; Adkins, Stephen; Dymond, Brian; Stocks, Paul. Concentration of suspensions. USP2013088506822.
  7. Yuan, Jun; Pruett, Robert J.; Powell, Larry C.. Effective reductive bleaching of mineral slurries. USP2010017648032.
  8. Pruett, Robert J.; Yuan, Jun; Bilimoria, Bomi M.; Wygant, Roger W.; Lyons, Anthony V.. Fine platy kaolin composition. USP2010107806978.
  9. Jones,J. Philip E.; Pruett,Robert J.; Yuan,Jun; Garska,Michael J.; Cummings,David O.; Bilimoria,Bomi M.; Wesley,Robin. Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness. USP2007067226005.
  10. Jones,J. Philip E.; Pruett,Robert J.; Yuan,Jun; Garska,Michael J.; Cummings,David O.; Bilimoria,Bomi M.; Wesley,Robin. Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness. USP2007047208039.
  11. Jones,J. Philip E.; Pruett,Robert J.; Yuan,Jun; Garska,Michael J.; Cummings,David O.; Bilimoria,Bomi M.; Wesley,Robin. Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness. USP2007057214264.
  12. Pruett,Robert J.; Yuan,Jun; Golley,Christopher R. L.; Garska,Michael J.. Integrated process for simultaneous beneficiation, leaching, and dewatering of kaolin clay suspension. USP2006107122080.
  13. Jun Yuan ; Christopher R. L. Golley ; Christopher Nutbeem GB; Rajan R. Iyer ; William H. Pope ; William L. Garforth ; Anthony V. Lyons ; Robert J. Pruett. Kaolin clay pigment for paper coating and method for producing same. USP2002066402826.
  14. Golley, Christopher R.L.; Manasso, John A.. Kaolin clay pigments suited to rotogravure printing applications and method for preparing the same. USP2004106808559.
  15. Pruett, Robert J.; Yuan, Jun; Brown, Jr., Harry Vincent; Cummings, David O.. Kaolin clay pigments, their preparation and use. USP2003056564199.
  16. Pring,Graham; Golley,Christopher R. L.. Kaolin pigment having high brightness and narrow particle size distribution and method of preparation therefor. USP2007127306668.
  17. Mathur,Sharad; Folmar,Kenneth W.; Thompson,David Kirk; Daniels,Barry L.. Kaolin pigments and methods of making the same. USP2009027494541.
  18. Golley, Christopher R. L.; Panfil, Daniel John; Brown, Jr., Harry Vincent; Husband, John Claude. Kaolin pigments, their preparation and use. USP2003086610137.
  19. Golley, Christopher R. L.; Panfil, Daniel John; Brown, Jr., Harry Vincent; Husband, John Claude. Kaolin pigments, their preparation and use. USP2003036537363.
  20. Johns, Philip Kenneth; Light, David Leslie. Kaolin products and their production. USP2011017875151.
  21. Johns,Philip Kenneth; Light,David Leslie. Kaolin products and their production. USP2008107442281.
  22. Lorusso,Marielle. Kaolin products and their use. USP2008087413601.
  23. Garska, Michael J.; Yildirum, Ismail; Pruett, Robert J.; Larimore, Johnny W.. Method for separating mixture of finely divided minerals. USP2010087780779.
  24. Greenhill, David Andrew; May, Anthony Allan; Golley, Christopher R. L.; Andrews, Ronald Windell. Method of treating an aqueous suspension of kaolin. USP2003096615987.
  25. Pruett, Robert J.; Richardson, Jim; Limousin, William; Yildirim, Ismail; Yuan, Jun. Method of treating an aqueous suspension of kaolin. USP2013108545787.
  26. Yildirim, Ismail; Pruett, Robert J.. Methods of calcining particulate material. USP2011098016936.
  27. Wesley, Robin. Particulate mineral materials. USP2004076758895.
  28. Husband, John Claude; Payton, Desmond Charles; Renals, Michele Susan. Pigment products. USP2004116814796.
  29. Husband, John Claude; Payton, Desmond Charles; Renals, Michele Susan. Pigment products. USP2003096616749.
  30. Fellers, Billy D.. Process for extracting and purifying naturally occurring zeolite. USP2003126662951.
  31. Fellers,Billy D.. Process for extracting and purifying naturally occurring zeolite. USP2006027004328.
  32. Bruns Jeffrey C. ; Kogel Jessica E. ; Lewis Susan A.. Process for the microwave beneficiation of discolored kaolin clay materials. USP1998115830818.