ClassID:

160288

F25J3/04878 - 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; Start-up or control of the process; Details of the apparatus used; Construction and layout of air fractionation equipments, e.g. valves, machines; Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc. Side by side arrangement of multiple vessels in a main column system, wherein the vessels are normally mounted one upon the other or forming different sections of the same column

Recent Application in this class:
#1
20240377131
2024-11-14

PLANT AND PROCESS FOR LOW-TEMPERATURE FRACTIONATION OF AIR

#2
20230358467
2023-11-09

AIR SEPARATION UNIT BY CRYOGENIC DISTILLATION

#3
20230168030
2023-06-01

PROCESS FOR CRYOGENIC FRACTIONATION OF AIR, AIR FRACTIONATION PLANT AND INTEGRATED SYSTEM COMPOSED OF AT LEAST TWO AIR FRACTIONATION PLANTS

#4
20220325952
2022-10-13

METHOD AND APPARATUS FOR PRODUCING PRODUCT NITROGEN GAS AND PRODUCT ARGON

#5
20210325108
2021-10-21

Method and installation for low temperature separation of air

#6
20210140709
2021-05-13

Air separation unit by cryogenic distillation

#7
20200041204
2020-02-06

Process and plant for the production of argon by cryogenic distillation of air

#8
20180372405
2018-12-27

METHOD AND DEVICE FOR OBTAINING PURE NITROGEN AND PURE OXYGEN BY LOW-TEMPERATURE SEPARATION OF AIR

#9
20180038645
2018-02-08

Plant for producing oxygen by cryogenic air separation

#10
20170030637
2017-02-02

Method for the production of low pressure gaseous oxygen

#11
20170030636
2017-02-02

Apparatus for the production of low pressure gaseous oxygen

#12
20160265841
2016-09-15

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

#13
20160123662
2016-05-05

Method and device for oxygen production by low-temperature separation of air at variable energy consumption

#14
20150369535
2015-12-24

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

#15
20140223960
2014-08-14

Method and device for generating two purified partial air streams

#16
20140223959
2014-08-14

Method and device for the cryogenic decomposition of air

#17
20120118013
2012-05-17

APPARATUS AND METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

#18
20110214453
2011-09-08

PROCESS AND DEVICE FOR CRYOGENIC AIR FRACTIONATION

#19
20110023540
2011-02-03

Method and device for low-temperature air separation

#20
20100139318
2010-06-10

Method And Device For Separating Air By Cryogenic Distillation

#21
20080127675
2008-06-05

Cold Box and Cryogenic Plant Including a Cold Box

#22
20070220917
2007-09-27

Process and Device for Evaporating an Oxygen-Enriched Working Fluid

#23
20070044507
2007-03-01

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

#24
20060260358
2006-11-23

Gas separation liquefaction means and processes

#25
20060086141
2006-04-27

Cold box and cryogenic plant including a cold box

#26
20060010909
2006-01-19

Backup system and method for production of pressurized gas

#27
20050193765
2005-09-08

Process for separating air by cryogenic distillation and installation for implementing this process