Conventional versus alkali fusion synthesis of zeolite A from low grade kaolin
作者: Lijalem AyeleJoaquín Pérez-ParienteYonas ChebudeIsabel Díaz
作者单位: 1Chemistry Department, Addis Ababa University, Addis Ababa, Ethiopia
2Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, 28049 Madrid, Spain
刊名: Applied Clay Science, 2016, Vol.132-133 , pp.485-490
来源数据库: Elsevier Journal
DOI: 10.1016/j.clay.2016.07.019
关键词: Zeolite AKaolinMetakaolinHydrothermal synthesisAlkali fusion
英文摘要: Abstract(#br)Synthesis of zeolite A using low grade Bombowha kaolin from Ethiopia has been carried out by two methods: the conventional hydrothermal synthesis and alkali fusion followed by hydrothermal treatment. In the synthesis process, the metakaolinization was achieved by calcination of the kaolin at 600°C for 3h for the conventional method and for the alkali fusion method, the activation of the raw kaolin was done by alkali fusion for only 1h. Zeolite A was the main product obtained using 3M NaOH concentration, 100°C reaction temperature and 3h crystallization time in both methods. The molar gel composition for the best synthesis conditions for both methods was Na 2 O: Al...
全文获取路径: Elsevier  (合作)
影响因子:2.342 (2012)