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Publication of CH50366ApublicationCriticalpatent/CH50366A/en
Process for preparing approximately 65% nitric acid. 0 out of 0 by absorption, by means of water, of nitrogen oxides diluted in a gas containing oxygen
Method for the transformation, into a mixture of carbon monoxide, nitrogen and hydrogen, of the waste gas and the purge gas resulting from the production of hydrogen by the processes based on the iron-water vapor reaction
Method for the transformation into a mixture of carbon monoxide, nitrogen and hydrogen of the waste gas and the purge gas resulting from the production of hydrogen by the processes based on the iron-water vapor reaction
Process for the separation of gas mixtures (compressed or not) by gradual cooling using cold helium or hydrogen, partial liquefaction, simultaneous distillation and rectification of the remaining vapors (and particularly separation of atmospheric air into pure oxygen and nitrogen )
Process for the separation of gaseous hydrochloric acid from a mixture of gases obtained in the catalytic oxidation of gaseous hydrochloric acid by a gas containing oxygen