| 萃取净化盐酸法制备磷酸工艺研究 |
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| 引用本文： | 杨站平,闫小玲,张树帜,王长锐.萃取净化盐酸法制备磷酸工艺研究[J].化肥工业,2014(1):12-14. |
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| 作者姓名： | 杨站平 闫小玲 张树帜 王长锐 |
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| 作者单位： | [凯恩德利 [北京]科贸有限公司,北京101100 |
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| 摘 要： | 以盐酸酸解磷矿粉制得粗磷酸为基础,采用磷酸三丁酯和煤油混合溶剂萃取与化学沉淀法相结合的工艺对粗磷酸进行净化处理,通过精制、浓缩、除杂、脱色后可制得食品级磷酸产品。研究结果表明:试验制得的产品磷酸质量分数为85.2%,各项指标不仅达到了工业级磷酸标准要求,而且达到了食品级磷酸标准要求。
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| 关 键 词： | 盐酸法 磷矿粉 溶剂萃取 |
Study of Preparation Phosphoric Acid Process by Extraction and Purification of Hydrochloric Acid Process |
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| Yang Zhanping,Yan Xiaoling,Zhang Shuzhi,Wang Changrui.Study of Preparation Phosphoric Acid Process by Extraction and Purification of Hydrochloric Acid Process[J].Journal of the Chemical Fertilizer Industry,2014(1):12-14. |
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| Authors: | Yang Zhanping Yan Xiaoling Zhang Shuzhi Wang Changrui |
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| Affiliation: | (Kindly [Beijing] Tech Trading Co., Ltd. Beijing 101100) |
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| Abstract: | Based on preparation crude phosphoric acid by acid hydrolysis of ground phosphate rocks with hydrochloric acid , using process of combination of tributyl phosphate and kerosene mixed solvent extraction with chemical precipitation process to carry out purification treatment for crude phosphoric acid , after refine , concentration , removal of impurities and decolorization , food grade phosphoric product is obtained . Research results show that mass fraction of prepared product phosphoric acid is 85.2%, all indicators achieved not only meet standard requirements of industrial grade phosphoric acid , but also reach qualifications of food grade phosphoric acid . |
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| Keywords: | hydrochloric acid process ground phosphate rock solvent extraction |
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