| 摘要 |
<p>Process for producing carbon molecular sieves for separating oxygen and nitrogen, consisting of treating a carbonization product having a content of volatile components of up to 5 % with carbon-separating hydrocarbons, which react in the carbon-containing structure of the carbonization product with narrowing of already existing pores. The carbonization product is fed into a vibrating oven at a temperature of between 800°C and 900°C for 5 to 30 minutes, in which there is a counter-flow of an inert gas with a steam concentration of between 20 and 95 % by volume. This poorly active product is again fed into the vibrating oven at a temperature of between 700°C and 850°C, in which is a counter-flow of an inert gas having a benzene vapour concentration of between 5 and 12 % by volume.</p> |
