| 低品位磷钾矿与磷酸共浸提取磷和钾工艺研究 |
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| 引用本文： | 孙雪飞,王为国,王存文. 低品位磷钾矿与磷酸共浸提取磷和钾工艺研究[J]. 化工矿物与加工, 2011, 40(1): 6-10 |
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| 作者姓名： | 孙雪飞 王为国 王存文 |
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| 作者单位： | 武汉工程大学化工与制药学院,湖北,武汉,430074 |
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| 摘 要： | 用反浮选法预处理磷钾矿,使得磷和钾的品位得到一定程度提高.建立磷钾矿与磷酸共浸反应体系,将低温磷酸酸解反应与中温离子交换反应分开进行,考察了影响该体系钾溶出率的各种因素.用过0.074mm标准筛的磷钾矿为原料,最适宜反应条件为:酸解反应温度80℃,反应时间5 d,磷酸(24.56%)用量12 mL(/3 g磷钾矿);离...
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| 关 键 词： | 反浮选 磷钾矿 离子交换 反应机理 热力学 |
Extraction of phosphate and potassium from leaching solution of low grade phosphate and potassium ore with phosphoric acid |
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| SUN Xue-fei,WANG Wei-guo,WANG Cun-wen. Extraction of phosphate and potassium from leaching solution of low grade phosphate and potassium ore with phosphoric acid[J]. Industrial Minerals and Processing, 2011, 40(1): 6-10 |
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| Authors: | SUN Xue-fei WANG Wei-guo WANG Cun-wen |
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| Affiliation: | SUN Xue-fei,WANG Wei-guo,WANG Cun-wen(Wuhan Iustitute of Technology,Wuhan Hubei 430074,China) |
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| Abstract: | The phosphate-potassium ore was preprocessed by means of reverse floatation process to get a higher grade of phosphate and potassium.A mineral-phosphoric acid co-impregnation reaction system was built to separate the low temperature acid decomposition reaction of phosphoric acid from the middle temperature ion exchange reaction,and influence factors like potassium apparent dissolution rate were also investigated.For the 0.074 mm standard sieve processed mineral,the best reaction conditions were considered t... |
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| Keywords: | reverse flotation phosphate-potassium ore ion exchange reaction mechanism thermodynamic |
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