硅酸盐通报2013，Vol.32Issue(6)：1052-1056,5.
高铁高硅煤矸石制备P型分子筛
Preparation of P Type Molecular Sieves from Gangue of High Iron and High Silica Content
摘要
Abstract
The high iron and silica content gangue was taken as the main material to synthesize P type molecular sieves by hydrothermal crystallization after oxidation at 350 ℃ for 2 h,iron removal by acid leaching,calcination at 750 ℃ for 2 h and alkali melting at 400 ℃ for 2 h.The ore,the pretreated material and the crystallization products were characterized by XRF,XRD and SEM.The results showed that the iron removal ratio of sulfuric acid leaching was 96.8％,the calcined gangue powder mined into soluble aluminosilicate.The crystallization products were pure P type molecular sieves,the average particle size was 2.53 μm,the calcium ion exchange capacity of the dry products was 325 mg CaCO3/g,the magnesium iron exchange capacity of the dry products was 96 mg MgCO3/g.关键词
煤矸石/除铁/碱熔/P型分子筛Key words
gangue/ iron removal/ alkali melting/ P type molecular sieve分类
通用工业技术引用本文复制引用
孔德顺,李琳,范佳鑫,籍永华,李志..高铁高硅煤矸石制备P型分子筛[J].硅酸盐通报,2013,32(6):1052-1056,5.基金项目
六盘水市煤系固体废弃物资源化利用创新团队资助(52020-2012-04-01-02) （52020-2012-04-01-02）
煤系固体废弃物资源化利用实验室资助(黔教高发2011-278) （黔教高发2011-278）
贵州省煤炭资源清洁高效利用科研实验平台资助(黔科平台[2011]4003) （黔科平台[2011]4003）
