3517521

Information

• Patent Grant
• 3517521

• References
• Source

• Patent Number

  3,517,521

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1970
  54 years ago

• CPC

  • F25J3/04642 - Recovering noble gases from air
  • F25J3/028 - separation of noble gases
  • F25J3/029 - of helium
  • F25J2205/20 - using solidification of components
  • F25J2210/40 - Air or oxygen enriched air
  • F25J2210/60 - Natural gas or synthetic natural gas [SNG]
  • F25J2215/30 - Helium
  • F25J2215/32 - Neon
  • F25J2270/904 - by liquid or gaseous cryogen in an open loop
  • Y10S62/923 - Inert gas

• US Classifications

  • 062 - Refrigeration
  • 095 - Gas separation: processes
  • 096 - Gas separation: apparatus