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响应面法优化硅藻土制备水玻璃工艺研究

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Indexed by:期刊论文

Date of Publication:2013-08-15

Journal:应用基础与工程科学学报

Included Journals:EI、PKU、ISTIC、CSCD、Scopus

Volume:21

Issue:4

Page Number:748-755

ISSN No.:1005-0930

Key Words:硅藻土;水玻璃;响应面法(RSM);Box-Behnken试验设计;优化

Abstract:以试剂型硅藻土作为硅源,通过碱溶法提取活性硅可制备SiO2气凝胶材料.通过响应面中的Box-Behnken试验设计方法,以SiO2溶出率和水玻璃模数的加权平均值为评价指标,优化硅藻土制备水玻璃工艺,以获得最优的工艺参数.试验结果表明,当碱硅质量比为3∶10,NaOH质量浓度为10%,反应温度为90℃时,水玻璃模数与SiO2溶出率的加权平均值达到最大值79.91%.

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