| 摘要 |
<p>Calcination qoudrons sur alumine I + II ? IN THE CANADIAN PATENT OFFICE PATENT APPLICATION entitled: "A PROCESS FOR REGENERATING AN OF ADSORBING MATERIAL IN THE FORM OF PARTICLES CHARGED WITH AT LEAST TWO VOLATILE COMPOUNDS HAVING DIFFERENT THERMAL STABILITIES" IN THE NAME OF: AIR INDUSTRIE OF THE ENCLOSURE Calcination of one of the volatile compounds is brought about in a first contacting column, in which the material is driven and put into suspension by an oxidizing gas stream, while being brought therein to a sufficiently high temperature, and the gaseous products desorbed in this first column are re-adsorbed by cooling in a second contacting column. This processs applies principally to the regeneration of particles of alumina which have adsorbed tars and compounds containing fluorine.</p> |
