3819811

Information

• Patent Grant
• 3819811

• References
• Source

• Patent Number

  3,819,811

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • C01B33/16 - Preparation of silica xerogels
  • B01J20/103 - comprising silica
  • B01J21/08 - Silica
  • B01J35/10 - characterised by their surface properties or porosity
  • C01B33/113 - Silicon oxides Hydrates thereof
  • C01B33/154 - by acidic treatment of aqueous silicate solutions
  • C01B33/1543 - using ion exchangers
  • B01J35/1019 - 100-500 m2/g
  • B01J35/1047 - more than 1.0 ml/g
  • B01J35/1061 - 2-50 nm
  • B01J35/1085 - monomodal

• US Classifications

  • 423 - Chemistry of inorganic compounds