Procedure for the separation of a condensed gas mix in hydrogen (Machine-translation by Google Translate, not legally binding)
ES225817A1
A procedure to separate condensed air by deep refrigeration, liquidation and rectification (Machine-translation by Google Translate, not legally binding)
ES204830A2
A procedure and device for the depuration of gases (Machine-translation by Google Translate, not legally binding)
ES200831A1
A procedure to dry or depress natural gases or residual gases of cracking or hydrogenation (Machine-translation by Google Translate, not legally binding)