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Silica microspheres, method of improving attrition resistance 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C01B-033/12
출원번호 US-0587879 (1990-09-25)
발명자 / 주소
  • Schwartz Jo-Ann T. (Chadds Ford PA)
출원인 / 주소
  • E. I. Du Pont de Nemours and Company (Wilmington DE 02)
인용정보 피인용 횟수 : 61  인용 특허 : 0

초록

High-strength, non-agglomerated uniform porous microspheres of silica produced by spray drying a mixture comprising a colloidal silica sol and an additive selected from ammonium citrate or urea; an attrition resistant catalytic composite consisting essentially of metal crystallites such as palladium

대표청구항

A process for preparing high-strength, non-agglomerated porous uniform silica microspheres which comprises the steps of: (a) mixing an aqueous sol of colloidal silica particles, having a diameter in the range of 5 to 100 nm, with an effective amount of a soluble additive selected from the group cons

이 특허를 인용한 특허 (61)

  1. Hojaji, Hamid; Melmeth, David Leslie, Alkali resistant glass compositions.
  2. Klein, Harald; Neuhausen, Ulrich; Lox, Egbert; Gieshoff, Jürgen; Kreuzer, Thomas, Catalyst featuring silicone dioxide based support material for the purification of exhaust gases.
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  8. Rueter,Michael, Direct hydrogen peroxide production using staged hydrogen addition.
  9. Naji, Basil; Merkley, Donald J.; Zammit, Michael; Luo, Caidian, Durable medium-density fibre cement composite.
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  13. Gleeson, James A.; Paradis, Kalynne H.; Sloane, Brian P.; Melmeth, David L.; Seligman, Dean M., Fiber cement building materials with low density additives.
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  18. Reyes,Clementine; Zhou,Bing, Low temperature preparation of supported nanoparticle catalysts having increased dispersion.
  19. Biscan, Giang; Hojaji, Hamid; Melmeth, David Leslie; Pham, Thinh; Stevens, Mark G.; Zhang, Huagang, Manufacture and use of engineered carbide and nitride composites.
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  26. Wanng.ang.rd Johan,SEX, Method of producing hydrogen peroxide.
  27. Zhou, Zhenhua; Wu, Zhihua; Zhang, Cheng; Zhou, Bing, Methods for manufacturing bi-metallic catalysts having a controlled crystal face exposure.
  28. Datta,Amlan; Hojaji,Hamid; Labernik,Shannon Marie; Melmeth,David Leslie; Pham,Thinh; Zhang,Huagang, Methods for producing low density products.
  29. Zhou, Zhenhua; Wu, Zhihua; Zhou, Bing, Methods of manufacturing fuel cell electrodes incorporating highly dispersed nanoparticle catalysts.
  30. Vasishtha, Niraj; Schlameus, Herman W.; Barlow, Darren E., Microencapsulation of oxygen or water sensitive materials.
  31. Zhou, Bing; Parasher, Sukesh; Rueter, Michael, Multicomponent nanoparticles formed using a dispersing agent.
  32. Parasher,Sukesh; Rueter,Michael; Zhou,Bing, Nanocatalyst anchored onto acid functionalized solid support and methods of making and using same.
  33. Brazdil, Jr., James Frank; Besecker, Charles James; Seely, Michael J.; Haddad, Muin S.; Toft, Mark A., Pre calcination additives for mixed metal oxide ammoxidation catalysts.
  34. Aznar, Pascal, Pre-filled columns for flash chromatography with higher separating efficiency.
  35. Hall, Dennis G., Preparation and uses of conjugated solid supports for boronic acids.
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  55. Devic, Michel, Supported metal catalyst, preparation and applications for directly making hydrogen peroxide.
  56. Reyes, Clementine; Fransson, Martin; Treviño, Horacio; Zhou, Bing, Supported nickel catalysts having high nickel loading and high metal dispersion and methods of making same.
  57. Duselis, Steven Alfred; Gleeson, James; Kascelan, Tihomir; Lyons, David; O'Chee, Milton Terrence, Surface sealed reinforced building element.
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  60. Datta, Amlan; Hojaji, Hamid; Melmeth, David L.; McFarlane, James A.; Pham, Thinh; Thompson, Noel E.; Zhang, Huagang, Synthetic microspheres comprising aluminosilicate and methods of making same.
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