EP 1760415 A1 20070307 - Process and device for the production of argon by cryogenic separation of air
Title (en)
Process and device for the production of argon by cryogenic separation of air
Title (de)
Verfahren und Vorrichtung zur Gewinnung von Argon durch Tieftemperaturzerlegung von Luft
Title (fr)
Procédé et dispositif pour la production d'argon par séparation cryogénique d'air
Publication
Application
Priority
EP 05425609 A 20050831
Abstract (en)
A process for producing argon by Iow temperature air fractionation, comprising the following steps: feeding a rectification column of at Ieast one section (12,14) with said air (10); extracting from said rectification column an argon-containing fraction (18) and feeding it to a crude argon column (16); extracting from said crude argon column an argon-containing fraction (22) and feeding it to a nitrogen removal column (24); and extracting from said nitrogen removal column an argon-containing fraction (30) and feeding it to a pure argon column (32).
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP)
F25J 3/04412 (2013.01); F25J 3/04678 (2013.01); F25J 3/04709 (2013.01); F25J 3/04721 (2013.01); F25J 3/04727 (2013.01); F25J 3/04969 (2013.01); F25J 2200/50 (2013.01); F25J 2245/58 (2013.01)
Citation (search report)
- [A] DE 821951 C 19511122 - LINDE EISMASCH AG
- [A] DE 19743731 A1 19980409 - LINDE AG [DE]
- [A] US 5970743 A 19991026 - HERRON DONN MICHAEL [US], et al
- [X] PATENT ABSTRACTS OF JAPAN vol. 1995, no. 06 31 July 1995 (1995-07-31)
- [X] PATENT ABSTRACTS OF JAPAN vol. 1995, no. 08 29 September 1995 (1995-09-29)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
DOCDB simple family (application)
EP 05425609 A 20050831