ClassID:

160265

F25J3/04727 - 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 pure argon, e.g. recovered from a crude argon column using an auxiliary pure argon column for nitrogen rejection

Recent Application in this class:
#1
20240035741
2024-02-01

AIR SEPARATION UNIT AND METHOD FOR CRYOGENIC SEPARATION OF AIR USING A DISTILLATION COLUMN SYSTEM INCLUDING AN INTERMEDIATE PRESSURE KETTLE COLUMN

#2
20240035740
2024-02-01

AIR SEPARATION UNIT AND METHOD FOR CRYOGENIC SEPARATION OF AIR USING A DISTILLATION COLUMN SYSTEM INCLUDING AN INTERMEDIATE PRESSURE KETTLE COLUMN

#3
20240003620
2024-01-04

PROCESS AND PLANT FOR CRYOGENIC SEPARATION OF AIR

#4
20230358468
2023-11-09

PROCESS AND APPARATUS FOR CRYOGENIC SEPARATION OF AIR WITH MIXED GAS TURBINE

#5
20230168030
2023-06-01

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

#6
20230003445
2023-01-05

FULL LIQUID-PRODUCT AIR SEPARATION EQUIPMENT AND PROCESS THEREFOR

#7
20220243981
2022-08-04

METHOD FOR OPERATING A PROCESS PLANT

#8
20210123671
2021-04-29

METHOD AND APPARATUS FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

#9
20190113278
2019-04-18

Modelling of a distillation column with operating state changes

#10
20180347900
2018-12-06

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

#11
20170299262
2017-10-19

Method and device for variably obtaining argon by means of low-temperature separation

#12
20160153712
2016-06-02

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

#13
20160131425
2016-05-12

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

#14
20160061520
2016-03-03

Method for the cryogenic fractionation of air and air fractionation plant

#15
20160003535
2016-01-07

Method and apparatus for the cryogenic separation of air

#16
20160003534
2016-01-07

Method and apparatus for the cryogenic separation of air

#17
20150369535
2015-12-24

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

#18
20150316318
2015-11-05

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

#19
20150007608
2015-01-08

Air separation method and apparatus with improved argon recovery

#20
20150007607
2015-01-08

Air separation method and apparatus with improved argon recovery

#21
20120125045
2012-05-24

Air separation method and apparatus

#22
20100024478
2010-02-04

PROCESS AND DEVICE FOR RECOVERING ARGON BY LOW-TEMPERATURE SEPARATION OF AIR

#23
20060272353
2006-12-07

Process and apparatus for the separation of air by cryogenic distillation