Abstract: La and Ce were loaded on Cr2O3-CuO-K2O/Al2O3 catalyst. The effect of rare earth on the catalytic oxidation of hydrogen chloride was studied and the promotor effect of n(La)/n(Cr)，n(Ce)/n(Cr) and lanthanum mixed with cerium on the catalyst was discussed. The better mole ratio of La/Cr was 0.1—0.3，and the better mole ratio of Ce/Cr was 0.2—0.3. It is feasible to substitute Cr2O3 by CeO2，and harmless production of the catalyst could be achieved.

摘要：

将稀土元素La、Ce负载于氯化氢氧化催化剂Cr-Cu-K/Al2O3上，研究了稀土元素在氯化氢氧化催化剂中的作用，探讨了不同的n(La)/n(Cr)、n(Ce)/n(Cr)以及镧铈混合元素对催化剂活性的影响，得到较好的La/Cr物质的量比为0.1～0.3，较好的Ce/Cr物质的量比为0.2～0.3，发现以CeO2取代Cr2O3具有可行性，能实现催化剂的无毒生产。