| 500 t/a中试规模制备小颗粒4A沸石的研究 |
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| 引用本文： | 李萍,杨效益,李秋小,胡青霞,赵慧贤,李永峰. 500 t/a中试规模制备小颗粒4A沸石的研究[J]. 精细化工, 2009, 26(5) |
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| 作者姓名： | 李萍 杨效益 李秋小 胡青霞 赵慧贤 李永峰 |
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| 作者单位： | 中国日用化学工业研究院,山西,太原,030001;中国日用化学工业研究院,山西,太原,030001;太原理工大学,化学工程与技术学院,山西,太原,030024 |
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| 基金项目： | 太原市科技项目(0803007)资助~~ |
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| 摘 要： | 在500 t/a的中试设备上,以全化学合成法进行了小颗粒4A沸石合成的中试放大实验。采用正交实验方法考察了原料配比A〔n(SiO2)/n(Al2O3)〕、B〔n(Na2O)/n(Al2O3)〕、C〔n(H2O)/n(Al2O3)〕及晶化时间D(t)对产品性能的影响。通过方差分析,确定出其最佳工艺条件为:n(SiO2)/n(Al2O3)=1.8～1.9,n(Na2O)/n(Al2O3)=3.2～3.4,n(H2O)/n(Al2O3)=80～100,t=20 min。工艺验证实验结果表明,该条件下的中试产品钙交换能力≥295 mg CaCO3/g干基,符合QB1767—2003的一级品标准。
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| 关 键 词： | 正交实验 小颗粒 钙交换 粒度 |
500 t/a Pilot-plant Test for Synthesis of Fine Crystal Zeolite 4A |
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| LI Ping,YANG Xiao-yi,LI Qiu-xiao,HU Qing-xia,ZHAO Hui-xian,LI Yong-feng. 500 t/a Pilot-plant Test for Synthesis of Fine Crystal Zeolite 4A[J]. Fine Chemicals, 2009, 26(5) |
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| Authors: | LI Ping YANG Xiao-yi LI Qiu-xiao HU Qing-xia ZHAO Hui-xian LI Yong-feng |
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| Affiliation: | 1.Research Institute of Daily Chemical Industry;Taiyuan 030001;Shanxi;China;2.College of Chemical Engineering & Technology;Taiyuan University of Technology;Taiyuan 030024;China |
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| Abstract: | Through orthogonal experiments,the influences of n(Na 2O)/n(Al 2O 3),n(SiO 2)/n(Al 2O 3),n(H 2O)/n(Al 2O 3) and crystallization time(t) on producing fine crystal zeolite 4A in a 500 t/a pilot-plant test equipment by the "total chemical synthesis" method were investigated.The results showed that the optimal synthetic conditions were as follows:n(SiO 2)/n(Al 2O 3)=1.8～1.9,n(Na 2O)/n(Al 2O 3)=3.2～3.4,n(H 2O)/n(Al 2O 3)=80～100,t=20 min.The verification test showed that the calcium ion exchange capacity of the pilot products was ≥295 mg CaCO 3/g(dry-zeolite).This was in performed in accordance with the first grade product criteria of QB1767—2003. |
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| Keywords: | orthogonal experiments fine crystal calcium exchange capacity particle size distribution |
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