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。
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.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2006年第10期1175-1177,共3页
Chemical Industry and Engineering Progress
关键词
氯化氢
氯气
催化氧化
稀土元素
镧
铈
hydrogen chloride
chlorine
catalytic oxidatiom rare earth
lanthanum
cerium
