硅微粉的提纯实验研究

刘丽娟; 李铁龙; 金朝晖

环境工程学报

硅微粉的提纯实验研究

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刘丽娟, 李铁龙, 金朝晖. 硅微粉的提纯实验研究[J]. 环境工程学报, 2010, 4(12): 2879-2882.

引用本文:

刘丽娟, 李铁龙, 金朝晖. 硅微粉的提纯实验研究[J]. 环境工程学报, 2010, 4(12): 2879-2882.

Liu Lijuan, Li Tielong, Jin Zhaohui. Experimental study on purifying silica fume[J]. Chinese Journal of Environmental Engineering, 2010, 4(12): 2879-2882.

Citation:

Liu Lijuan, Li Tielong, Jin Zhaohui. Experimental study on purifying silica fume[J]. Chinese Journal of Environmental Engineering, 2010, 4(12): 2879-2882.

硅微粉的提纯实验研究

1.
南开大学环境科学与工程学院, 天津 300071；2.南开大学环境污染过程与基准教育部重点实验室, 天津 300071
基金项目:
中图分类号: TQ127.2

Experimental study on purifying silica fume

1.
College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China；2.Key Laboratory of Pollution Processes and Environmental Crieria,Ministry of Education, Nankai University, Tianjin 300071, China
Fund Project:

摘要: 采用选择性絮凝法对硅微粉进行提纯处理，分别探索了分散剂、絮凝剂种类及用量、pH值和沉降时间等因素对提纯效果的影响，实验结果表明，当聚乙烯吡咯烷酮、油酸钠的投加量分别80 g/t和1 824 g/t硅微粉，体系pH 5.3，沉降时间50 min时，硅微粉中二氧化硅的含量从74%提高到了90.9%，提纯效果显著。
- 选择性絮凝 /
- 硅微粉 /
- 油酸钠 /
- 淀粉
Abstract: The purification of silica fume by selective flocculation method was studied. The effects of the floatation agent dosage, dispersants, pH and deposition times on the separation efficiency were investigated. When the dosage of sodium oleate was 1 824 g/t, the dosage of PVP was 80 g/t, the system pH was 5.3, and the residence time was 50 min, the purification effect was best.The silica content of the fume arose from 74% to 90.9%.
- selective flocculation /
- silica fume /
- sodium oleate /
- starch

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刘丽娟, 李铁龙, 金朝晖. 硅微粉的提纯实验研究[J]. 环境工程学报, 2010, 4(12): 2879-2882.

引用本文:

刘丽娟, 李铁龙, 金朝晖. 硅微粉的提纯实验研究[J]. 环境工程学报, 2010, 4(12): 2879-2882.

Liu Lijuan, Li Tielong, Jin Zhaohui. Experimental study on purifying silica fume[J]. Chinese Journal of Environmental Engineering, 2010, 4(12): 2879-2882.

Citation:

Liu Lijuan, Li Tielong, Jin Zhaohui. Experimental study on purifying silica fume[J]. Chinese Journal of Environmental Engineering, 2010, 4(12): 2879-2882.

硅微粉的提纯实验研究

1. 南开大学环境科学与工程学院, 天津 300071；2.南开大学环境污染过程与基准教育部重点实验室, 天津 300071

收稿日期: 2010-04-06

基金项目:

关键词:

选择性絮凝 /
硅微粉 /
油酸钠 /
淀粉

摘要: 采用选择性絮凝法对硅微粉进行提纯处理，分别探索了分散剂、絮凝剂种类及用量、pH值和沉降时间等因素对提纯效果的影响，实验结果表明，当聚乙烯吡咯烷酮、油酸钠的投加量分别80 g/t和1 824 g/t硅微粉，体系pH 5.3，沉降时间50 min时，硅微粉中二氧化硅的含量从74%提高到了90.9%，提纯效果显著。

English Abstract

Experimental study on purifying silica fume

1. College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China；2.Key Laboratory of Pollution Processes and Environmental Crieria,Ministry of Education, Nankai University, Tianjin 300071, China

Received Date: 2010-04-06

Fund Project:

Keywords:

Abstract: The purification of silica fume by selective flocculation method was studied. The effects of the floatation agent dosage, dispersants, pH and deposition times on the separation efficiency were investigated. When the dosage of sodium oleate was 1 824 g/t, the dosage of PVP was 80 g/t, the system pH was 5.3, and the residence time was 50 min, the purification effect was best.The silica content of the fume arose from 74% to 90.9%.

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硅微粉的提纯实验研究

Experimental study on purifying silica fume

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硅微粉的提纯实验研究

English Abstract

Experimental study on purifying silica fume

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