ClassID:

160262

F25J3/04666 - 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 a parallel working rectification column of the low pressure column in a dual pressure main column system

Recent Application in this class:
#1
20240035743
2024-02-01

Process and apparatus for recovery of at least nitrogen and argon

#2
20240035742
2024-02-01

Air separation unit and method for production of high purity nitrogen product using a distillation column system with an intermediate pressure kettle column

#3
20220205715
2022-06-30

Method and apparatus for transfer of liquid

#4
20180347900
2018-12-06

Process for obtaining one or more air products and air separation plant

#5
20160265841
2016-09-15

System and method for generation of oxygen by low-temperature air separation

#6
20160131425
2016-05-12

System and method for production of crude argon by cryogenic rectification of air

#7
20160123663
2016-05-05

Air separation method

#8
20160123661
2016-05-05

Air separation apparatus

#9
20160061520
2016-03-03

Method for the cryogenic fractionation of air and air fractionation plant

#10
20150369535
2015-12-24

Air separation plant, method for obtaining a product containing argon, and method for creating an air separation plant

#11
20150316318
2015-11-05

System and method for production of argon by cryogenic rectification of air

#12
20150007608
2015-01-08

Air separation method and apparatus with improved argon recovery

#13
20150007607
2015-01-08

Air separation method and apparatus with improved argon recovery

#14
20140202208
2014-07-24

Method and device for separating a gas mixture by cryogenic distillation

#15
20120125045
2012-05-24

Air separation method and apparatus

#16
20110226015
2011-09-22

Air separation method and apparatus

#17
20100011811
2010-01-21

Method and device for separating a gas mixture by cryogenic distillation