| 柠檬酸法脱硫中硫酸根的树脂吸附研究 |
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| 引用本文： | 朱航,洪涛,高萌.柠檬酸法脱硫中硫酸根的树脂吸附研究[J].有色金属(冶炼部分),2015(8):62-66. |
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| 作者姓名： | 朱航 洪涛 高萌 |
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| 作者单位： | 西安建筑科技大学,西安建筑科技大学,西安建筑科技大学 |
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| 基金项目： | 国家自然科学基金青年科学基金项目（51104115） |
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| 摘 要： | 采用静态法研究D301R、D301G、D370和D315四种弱碱性阴离子交换树脂吸附柠檬酸法脱除SO2的解吸贫液中硫酸根的效果,分析吸附时间、柠檬酸浓度、树脂用量、pH等对硫酸根吸附量的影响,解吸时间、解吸碱液浓度对树脂解吸效果的影响,及多次吸附解吸循环再生对树脂吸附活性的影响。结果表明,D315在高浓度柠檬酸钠溶液(1.0 mol/L)中对SO42-有较好的脱除效果,当氢氧化钠浓度为1.5mol/L时,3min即可将SO42-解吸完全,在经过10轮吸附解吸循环再生后其活性下降,吸附能力降低约15%。
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| 关 键 词： | 烟气脱硫 柠檬酸 弱碱性阴离子树脂 硫酸根 |
| 收稿时间： | 3/8/2015 12:00:00 AM |
| 修稿时间： | 2015/3/12 0:00:00 |
Adsorption and Desorption of Resin for Sulfate in FGD with Sodium Citrate Buffer Solution |
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| ZhuHang,HongTao and GaoMeng.Adsorption and Desorption of Resin for Sulfate in FGD with Sodium Citrate Buffer Solution[J].Nonferrous Metals(Extractive Metallurgy),2015(8):62-66. |
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| Authors: | ZhuHang HongTao and GaoMeng |
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| Abstract: | D301R, D301G, D370 and D315 weak base anion exchange resins were selected to investigate their effects on desorption of sulfate from desorption lean solution by static method. The effects of adsorption time, citric acid concentration, resin dosage and pH value on sulfate adsorption capacity; desorption time and concentration of alkali liquor on resin desorption; and effect of cyclic regeneration of adsorption and desorption on activity of resin adsorption were analyzed. The results show that D315 resin has bigger effect on desorption of sulfate in high concentration sodium citrate solution (1.0 mol/L). SO42- ions can be completely desorbed within 3 min by concentration of sodium hydroxide of 1.5 mol/L. Adsorption capacity drops by 15% after ten rounds adsorption and desorption recycling. |
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| Keywords: | flue gas desulfurization(FGD) citric acid weak base anion resin sulfate |
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