| 利用合成沸石副产稀碱液制五水偏硅酸钠 |
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| 引用本文： | 余丽秀,孙亚光.利用合成沸石副产稀碱液制五水偏硅酸钠[J].化工环保,2000,20(4):40-42. |
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| 作者姓名： | 余丽秀 孙亚光 |
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| 作者单位： | 国家非金属矿资源综合利用工程技术研究中心,河南,郑州,450006 |
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| 摘 要： | 合成沸石原粉副产和稀碱液经除杂后，用泡花碱调整ＳｉＯ２浓度，再经浓缩、结晶、分离、干燥等过程制备五水偏硅酸钠，产品质量符合标准，生产成本较通常方法可降低２５％，采用本法还可解决稀碱液对环境的污染，具有较好的环境、经济和社会效益。
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| 关 键 词： | 沸石 稀碱液 偏硅酸钠 副产 废水处理 洗涤剂 |
Preparation of Sodium Metasilicate Pentahydrate from Dilute L ye Generated in Synthetic Zeolite Production |
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| YU Li-xiu,SUN Ya-guang.Preparation of Sodium Metasilicate Pentahydrate from Dilute L ye Generated in Synthetic Zeolite Production[J].Environmental Protection of Chemical Industry,2000,20(4):40-42. |
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| Authors: | YU Li-xiu SUN Ya-guang |
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| Abstract: | Sodium metasilicate pentahydrate is prepared from dilute lye generated in zeolite production through removing impurity by precipitation,adjusting SiO 2 content by adding water glass,and then via the processes of concentration,crystallization,separation and drying.The product quality can meet the standard and the production cost decreases by 25% compared with that of the conventional process.The new process not only eliminates dilute lye pollution,but also realizes good economic and social benefits. |
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| Keywords: | zeolite dilute lye sodium metasilicate pentahydrate |
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