EP 0363861 A3 19900620 - PROCESS FOR OBTAINING IMPURE ARGON
Title (en)
PROCESS FOR OBTAINING IMPURE ARGON
Publication
Application
Priority
DE 3834793 A 19881012
Abstract (en)
[origin: CA2000595A1] A process is disclosed for producing gaseous crude argon by low-temperature rectification n f air wherein a portion of the compressed air is further compressed. The further compressed air is partially liquefied by countercurrent heat exchange with evaporating crude argon obtained in the liquid phase, this crude argon being under elevated pressure.
IPC 1-7
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP US)
F25J 3/04096 (2013.01 - EP US); F25J 3/04103 (2013.01 - EP US); F25J 3/04206 (2013.01 - EP US); F25J 3/04303 (2013.01 - EP US); F25J 3/04412 (2013.01 - EP US); F25J 3/04672 (2013.01 - EP US); F25J 2250/40 (2013.01 - EP US); F25J 2250/58 (2013.01 - EP US); Y10S 62/924 (2013.01 - EP US); Y10S 62/939 (2013.01 - EP US)
Citation (search report)
[X] DE 3643359 A1 19880623 - LINDE AG [DE]
Designated contracting state (EPC)
BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0363861 A2 19900418; EP 0363861 A3 19900620; EP 0363861 B1 19920603; CA 2000595 A1 19900412; CN 1052940 A 19910710; DE 3834793 A1 19900419; DE 58901598 D1 19920709; US 4932212 A 19900612
DOCDB simple family (application)
EP 89118671 A 19891007; CA 2000595 A 19891012; CN 89107084 A 19890916; DE 3834793 A 19881012; DE 58901598 T 19891007; US 42156389 A 19891011