| 摘要 |
<p>Appts. for extracting oxygen from a gas mixture comprises vessel containing molten solder, through which the mixture is passed. The underside of the vessel is pref. perforated, with a chamber below it to which the outlet from an air compressor is connected. Diameter of each perforation is pref. between 0.1 and 1 mm, with heaters for the perforated base and also for the incoming air to the chamber.</p> |
