| 摘要 |
A process for effecting the reaction of a gaseous or liquid chemical system by irradiation with g -rays is characterized in that the irradiation is performed in the presence of a radiocatalyst comprising a micro-porous substance having a specific surface area of at least 100 square metres per gram, said micro-porous substance being an insulating or semi-conducting material which is normally incapable of catalysing said reaction but which catalyses the reaction while being irradiated with X-rays. Specified microporous substances are activated carbon, alumina, silica gel and molecular sieves; optionally in conjunction with metallic salts or compounds such as uranium oxide. Examples of reactions which may be effected are the decomposition of nitrous oxide to nitrogen, nitric oxide and oxygen using silica gel or alumina with/without uranium oxide, the fixation of nitrogen of the air using silica gel or alumina with/without uranium oxide, the synthesis of ammonia from hydrogen and nitrogen using alumina, and the conversion of methane mainly to ethane and hydrogen. The source of the g -rays may be cobalt 60 or spent nuclear fuel.ALSO:A process for effecting the reaction of a gaseous or liquid chemical system by irradiation with g -rays is characterized in that the irradiation is in the presence of a radiocatalyst comprising a micro-porous substance having a specific surface area of at least 100 square metres per gram, said micro-porous substance being an insulating or semi-conducting material which is normally incapable of catalysing said reaction but which catalyses the reaction while being irradiated with X-rays. Specified micro-porous substances are activated carbon, alumina, silica gel and molecular sieves; optionally in conjunction with metallic salts or compounds such as uranium oxide. Examples of reactions which may be effected include the polymerization of ethylene with alumina+uranium oxide or with an artificial zeolite. The source of the g -rays may be cobalt 60 or spent nuclear fuel.ALSO:A process for effecting the reaction of a gaseous or liquid chemical system by irradiation with g -rays is characterized in that the irradiation is in the presence of a radiocatalyst comprising a micro-porous substance having a specific surface area of at least 100 square metres per gram, said micro-porous substance being an insulating or semi-conducting material which is normally incapable of catalysing said reaction but which catalyzes the reaction while being irradiated with X-rays. Specified micro-porous substances are activated carbon, alumina, silica gel and molecular sieves; optionally in conjunction with metallic salts or compounds such as uranium oxide Examples of reactions which may be effected include the telomerization of ethylen/carbon tetrachloride to mainly tetrachloropropane using activated carbon. The source of the g -rays may be cobalt 60 or spent nuclear fuel. |
