F25J3/04375 - CPC Classification Index

ClassID:

160215 ⎘

F25J3/04375 - CPC Classification

Classification description:

Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air; Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion Details relating to the work expansion, e.g. process parameter etc.

Sub-classes:

F25J3/04381 » {using work extraction by mechanical coupling of compression and expansion so-called companders} 31
F25J3/04387 » {using liquid or hydraulic turbine expansion} 38
F25J3/04393 » {using multiple or multistage gas work expansion} 92

Recent Application in this class:

20250189218

HIGH-PURITY OXYGEN PRODUCTION METHOD, AND AIR SEPARATION DEVICE FOR PRODUCING HIGH-PURITY OXYGEN

20240393042

METHOD FOR THE CRYOGENIC SEPARATION OF AIR, AND AIR SEPARATION PLANT

20110067444

Processes and Device for Low Temperature Separation of Air

20110023540

Method and device for low-temperature air separation

20050126221

Process and apparatus for the separation of air by cryogenic distillation