| 盐水杂质对胺法制碱碳化及结晶的影响 |
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| 引用本文： | 许振良,黄颂安,施亚钧,杨波涛.盐水杂质对胺法制碱碳化及结晶的影响[J].华东理工大学学报(自然科学版),1991(2). |
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| 作者姓名： | 许振良 黄颂安 施亚钧 杨波涛 |
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| 作者单位： | 华东化工学院化学工程研究所
(许振良，黄颂安，施亚钧)，谷城化肥厂(杨波涛) |
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| 摘 要： | 在搅拌鼓泡反应器中进行胺法制碱的碳化试验,探讨了盐水中其它物质:CaCl_2、MgCl_2、KCl、Na_2SO_4、CaCO_3、MgCO_3对NaCl溶液碳化的影响,其碳化能力顺序为:CaCl_2>MgCl_2>NaCl>KCl。考察了温度对海盐溶液与纯氯化钠溶液碳化和重碱粒度的影响,讨论了硅油消除液液两相界面气泡的可能性,从而提出了胺法制碱中必须去除Ca~(2+)和Mg~(2+)。
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| 关 键 词： | 叔胺 碳化 碳酸氢钠 结晶 氯化钠 |
Effects of Brine Impurities on Carbonation and Crystallization of Soda Manufactured by Amine Method |
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| Xu Zhenliang,Wang Song''''an and Shi Yajun.Effects of Brine Impurities on Carbonation and Crystallization of Soda Manufactured by Amine Method[J].Journal of East China University of Science and Technology,1991(2). |
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| Authors: | Xu Zhenliang Wang Song'an and Shi Yajun |
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| Abstract: | The carbonation experiments of soda manufactured by amine method were made in a stirring and bubbling reactor. The effects of other substances of brine such as CaCl_2, MgCl_2, KCl, Na_2SO_4, CaCO_3 and MgCO_3 on the carbonation of sodium chloride solution were discussed. The sequence of carbonation was obtained as follows: CaCl_2>MgCl_2>NaCl>KCl. The temperature effects on the carbonation of brine and pure sodium chloride solution and on the sizes of sodium bicarbonate were investigated. The possibility of eliminating the gas bubbles at the liquid-liquid interface by silicon oil was discussed. It was pointed that Ca~(2+) and Mg~(2+) must be removed in the manufacturing of soda by amine method. The theoretical basis was provided for improving sodium bicarbonate crystals. |
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| Keywords: | tertiary amine carbonation sodium bicarbonate crystallization sodium chloride |
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