南京工业大学学报（自然科学版）2018，Vol.40Issue(2)：27-33,7.DOI:10.3969/j.issn.1671-7627.2018.02.005
不同孔径硅胶负载的铯盐对1,1,2-三氯乙烷脱HCl的影响
Dehydrochlorination of 1,1,2-trichloroethane by cesium salt loaded silica gel with different pore sizes
施津津 1崔咪芬 1汤吉海 1陈献 1费兆阳 1乔旭2
作者信息
- 1. 南京工业大学 化工学院,江苏 南京210009
- 2. 南京工业大学 材料化学工程国家重点实验室,江苏 南京210009
- 折叠
摘要
Abstract
Owing to the large pore diameter and volume,macro porous silica gel can load more alkali,and organic matter can spread more quickly in the catalyst pore and contact more easily with the active sites, which can improve the 1,1,2-trichloroethane dehydrochlorination reactivity.A series CsNO3,Cs2CO3 and CsCl catalysts supported on silica gel with different pore sizes were prepared through equivalent volume impregnation method,and applied to the catalytic dehydrochlorination of 1,1,2-trichloroethane.Results showed that the catalytic performance increased with increasing pore size of silica gel and the basicity of catalysts.Comparing with CsCl/20A at 400 ℃,the 1,1,2-trichloroethane conversion over CsNO3/278A raised by 35%,vinylidene chloride selectivity increased 13%,respectively.The stability test showed that at 400 ℃ CsCl/200A had a satisfactory result of 17 h,and exhibited a promising application.关键词
1,1,2-三氯乙烷/脱氯化氢/偏二氯乙烯/大孔硅胶Key words
1,1,2-tichloroethane/dehydrochlorination/vinylidene chloride/macro porous silica gel分类
化学化工引用本文复制引用
施津津,崔咪芬,汤吉海,陈献,费兆阳,乔旭..不同孔径硅胶负载的铯盐对1,1,2-三氯乙烷脱HCl的影响[J].南京工业大学学报（自然科学版）,2018,40(2):27-33,7.
