Preparation of oxygen (by liquefying F25J)

Full Title

Oxygen; Ozone; Oxides or hydroxides in general > Preparation of oxygen (by liquefying F25J)

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• C01B 13/0203
• C01B 13/0222
• C01B 13/0229
• C01B 13/0292
• C01B 13/0296
• C01B 13/08 from air with the aid of metal oxides, e.g. barium oxide, manganese oxide