F25J3/04745 - CPC Classification Index

ClassID:

160267 ⎘

F25J3/04745 - 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; Recovering noble gases from air Krypton and/or Xenon

Sub-classes:

F25J3/04751 » {Producing pure krypton and/or xenon recovered from a crude krypton/xenon mixture} 5

Recent Application in this class:

20220357104

Fluid recovery process and apparatus for xenon and or krypton recovery

20210190422

Recovery of krypton and xenon from liquid oxygen

20190072326

System and method for recovery of non-condensable gases such as neon, helium, xenon, and krypton from an air separation unit

20180017322

Method and apparatus for producing compressed nitrogen and liquid nitrogen by cryogenic separation of air

20160187060

Method and device for discharging components that are less volatile than oxygen from an air separation plant

20160061520

Method for the cryogenic fractionation of air and air fractionation plant

20150121954

Method and apparatus for the low-temperature fractionation of a fluid mixture

20130239609

KRYPTON XENON RECOVERY FROM PIPELINE OXYGEN

20110302956

Rare gases recovery process for triple column oxygen plant

20110126585

Krypton xenon recovery from pipeline oxygen

20110041552

Apparatus And Method For Separating Air By Cryogenic Distillation

20100037656

Krypton and xenon recovery method

20080307961

CENTRIFUGAL SEPARATION OF RARE GASES

20070044507

Process for the recovery of krypton and/or xenon by low-temperature separation of air

20060021380

Method and installation for production of noble gases and oxygen by means of cryrogenic air distillation