초록 ▼

An alumina support which contains cesium is prepared by adding a fusible compound of cesium to alumina along with known binders and porosity control agents. The cesium compound should be fusible below the temperature at which the alumina fuses. Such a support is especially useful as a support for a

An alumina support which contains cesium is prepared by adding a fusible compound of cesium to alumina along with known binders and porosity control agents. The cesium compound should be fusible below the temperature at which the alumina fuses. Such a support is especially useful as a support for a silver catalyst employed in the oxidation of ethylene to ethylene oxide.

대표청구항 ▼

In the process of making an alumina support material by heating at an elevated temperature of >1000°C. a mixture of alumina, porosity control agents and binders, the improvement which comprises adding a cesium compound to said mixture to provide in the finished support an amount of cesium of from ab

In the process of making an alumina support material by heating at an elevated temperature of >1000°C. a mixture of alumina, porosity control agents and binders, the improvement which comprises adding a cesium compound to said mixture to provide in the finished support an amount of cesium of from about 0.03 to about 0.6 percent by weight of the total support material, said cesium being in substantially unleachable form as the result of having been incorporated into said support by the fusion of said alumina and cesium compound at said elevated temperature.