2990689

Information

• Patent Grant
• 2990689

• References
• Source

• Patent Number

  2,990,689

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1961
  63 years ago

• CPC

  • F25J3/04278 - using external refrigeration units
  • C01B23/00 - Noble gases Compounds thereof
  • F25J3/04739 - in combination with an auxiliary pure argon column
  • F25J3/04963 - and inter-connecting equipment within or downstream of the fractionation unit(s)
  • F25J2205/60 - using adsorption on solid adsorbents
  • F25J2205/82 - using a reactor with combustion or catalytic reaction
  • F25J2230/58 - the fluid being argon or crude argon
  • F25J2270/42 - Quasi-closed internal or closed external nitrogen refrigeration cycle
  • Y10S62/915 - Combustion
  • Y10S62/924 - Argon

• US Classifications

  • 062 - Refrigeration