| 摘要 |
<p>PURPOSE:To obtain carbon as a molecular sieve excellent in separating performance by mixing pulverized coal with a liq. thermosetting resin and at least one kind of binder selected among coal tar, pitch and creosote oil, molding the mixture into granules and carbonizing the granules. CONSTITUTION:Pulverized coal is mixed with 5-20 pts.wt. liq. thermosetting resin such as resol resin basing on 100 pts.wt. of the coal and 10-30 pts.wt. at least one kind of binder selected among coal tar, pitch and creosote oil, the mixture is molded into granules and the granules are carbonized at 700-1,100 deg.C in an inert atmosphere. Since the resulting carbon as a molecular sieve has large adsorption capacity and excellent selective adsorbing characteristics, it can be used in the separation of various gaseous mixtures such as a gaseous nitrogen-oxygen mixture, a gaseous methane-hydrogen mixture, an ethylene-propylene mixture, an Ar-contg. gaseous mixture and a mixture of hydrocarbon isomers.</p> |
