3755530

Information

• Patent Grant
• 3755530

• References
• Source

• Patent Number

  3,755,530

• Date Filed

  Not available

• Date Issued

  Tuesday, August 28, 1973
  51 years ago

• CPC

  • C22B7/005 - Separation by a physical processing technique only
  • C01B13/14 - Methods for preparing oxides or hydroxides in general
  • C01C3/0283 - from simple or complex cyanides of the noble metals
  • C01C3/0287 - from simple or complex cyanides of other transition metals
  • C02F11/20 - by freezing
  • C09K5/20 - Antifreeze additives therefor
  • C22B7/001 - Dry processes
  • C02F2101/18 - Cyanides
  • C02F2101/20 - Heavy metals or heavy metal compounds
  • C02F2101/22 - Chromium or chromium compounds
  • Y02P10/214 - by pyro metallurgy

• US Classifications

  • 423 - Chemistry of inorganic compounds
  • 034 - Drying and gas or vapor contact with solids
  • 062 - Refrigeration
  • 264 - Plastic and nonmetallic article shaping or treating: processes