ClassID:

160263

F25J3/04709 - 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 argon; Producing crude argon in a crude argon column as an auxiliary column system in at least a dual pressure main column system

Recent Application in this class: