Inorganic Chemicals Industry ›› 2023, Vol. 55 ›› Issue (10): 42-49.doi: 10.19964/j.issn.1006-4990.2022-0712
• Research & Development • Previous Articles Next Articles
LIU Yue1,2,3(), ZHENG Qiang1,2,3, XING Jiabin1,2,3, XING Run1,2,3, MA Yali1,2,3, JIA Songyan1,2,3, LI Xue1,2,3()
Received:
2022-12-05
Online:
2023-10-10
Published:
2023-10-16
Contact:
LI Xue
E-mail:1304167440@qq.com;ltmlx@163.com
CLC Number:
LIU Yue, ZHENG Qiang, XING Jiabin, XING Run, MA Yali, JIA Songyan, LI Xue. Study on process and application of high-performance calcium hydroxide prepared by dry digestion from limestone[J]. Inorganic Chemicals Industry, 2023, 55(10): 42-49.
Table 4
Effect of reaction time on calcium hydroxide index"
编 号 | 水灰 比 | 温度/ ℃ | 反应时 间/min | CaO水 化率/% | Ca(OH)2 纯度/% | 比表面积/ (m2∙g-1) | 气孔容量/ (cm³∙g-1) |
---|---|---|---|---|---|---|---|
1 | 0.5 | 25 | 20 | 81.13 | 83.31 | 33.48 | 0.117 |
2 | 0.5 | 25 | 30 | 81.58 | 84.01 | 34.36 | 0.121 |
3 | 0.5 | 25 | 40 | 82.69 | 84.21 | 34.54 | 0.121 |
4 | 0.5 | 25 | 50 | 82.74 | 84.23 | 34.65 | 0.120 |
5 | 0.5 | 25 | 60 | 82.96 | 84.33 | 35.35 | 0.117 |
6 | 0.5 | 25 | 70 | 82.87 | 83.96 | 34.56 | 0.115 |
7 | 0.5 | 25 | 80 | 82.35 | 83.64 | 33.06 | 0.117 |
8 | 0.5 | 25 | 90 | 81.84 | 84.05 | 33.75 | 0.118 |
Table 6
Effects of additive and digestion method on indexes of calcium hydroxide"
编号 | 添加剂 | 添加量/% | 消化 方式 | CaO水化率/% | Ca(OH)2 纯度/% | 比表面积/ (m2∙g-1) | 气孔容量/ (cm³∙g-1) |
---|---|---|---|---|---|---|---|
1 | 无 | 0 | 1次消化 | 92.81 | 92.21 | 41.91 | 0.146 |
2 | PEG400 | 2 | 1次消化 | 94.39 | 93.31 | 43.17 | 0.147 |
3 | PEG400 | 3 | 1次消化 | 94.11 | 93.08 | 45.37 | 0.150 |
4 | PEG400 | 4 | 1次消化 | 94.92 | 93.86 | 46.61 | 0.151 |
5 | PEG400 | 5 | 1次消化 | 94.97 | 93.47 | 47.72 | 0.149 |
6 | 无 | 0 | 2次消化 | 95.01 | 93.52 | 43.69 | 0.148 |
7 | PEG400 | 2 | 2次消化 | 95.31 | 93.37 | 46.67 | 0.153 |
8 | PEG400 | 3 | 2次消化 | 95.41 | 93.67 | 47.39 | 0.154 |
9 | PEG400 | 4 | 2次消化 | 95.52 | 93.86 | 48.89 | 0.157 |
10 | PEG400 | 5 | 2次消化 | 95.57 | 94.06 | 50.81 | 0.153 |
11 | PEG400 | 2 | 3次消化 | 95.34 | 93.78 | 48.42 | 0.154 |
12 | PEG400 | 4 | 3次消化 | 95.28 | 93.91 | 52.62 | 0.163 |
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