煤系高岭土水热合成13X分子筛的试验研究  

Exprimental Study on synthesis of 13X Molecular Sieve from Coal Series Kaolinite by Hydrothermal Reaction

作　　者：孔德顺[1] 蒋荣立[1] 张宗祥[1] 陈文龙[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221116

出　　处：《煤炭工程》2008年第2期87-89,共3页Coal Engineering

基　　金：煤炭加工与高效洁净利用教育部重点实验室开放基金项目(CPEUKF06-13)

摘　　要：以煤系高岭土为主要原料,经过对原料煅烧处理和水热合成试验,制备了13X分子筛。通过试验,优化的试验条件是:高岭土加入氯化铵后在750℃下煅烧2h,得到含有少量铁的偏高岭土,高岭土与氯化铵的最佳质量配比100∶3.2;优化后的合成反应的条件为SiO2/A12O3=3;Na2O/SiO2=1.9;H2O/Na2O=40;老化时间为1d;加入晶种的量为总产量的10%;98℃下晶化9.5h。13X molecular sieves were synthesized by baking and hydrothermal synthesizing procedures using the Coal Series Kaolinite. The optimized baking conditions were determined by experiments ： the mixture of kaolinite and ammonium chloride were baked at 750℃ for 2 hours to obtain metkaolinite with less iron, the mass ratio of ammonium chloride adding to the kaolinite was 100： 3.2; The optimized reaction conditions： SiO2/Al2O3=3, Na2O/SiO2=1.9, H2O/Na2O=40, ageing 1d; 13X molecular sieves powder was added as crystal seed , which the mass raito of 13X molecular sieves to the total product was 10%, then the product was obtained after crystal at 95℃ for 9. 5h.

关 键 词：煤系高岭土 除铁 13X分子筛 

分 类 号：TQ028[化学工程]