| 盐酸分解精选磷铁矿制磷酸工艺研究 |
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| 引用本文： | 龙飞,石书敬,应建康. 盐酸分解精选磷铁矿制磷酸工艺研究[J]. 化工矿物与加工, 2009, 38(3) |
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| 作者姓名： | 龙飞 石书敬 应建康 |
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| 作者单位： | 四川大学化学工程学院,四川,成都,610065;四川大学化学工程学院,四川,成都,610065;四川大学化学工程学院,四川,成都,610065 |
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| 摘 要： | 盐酸法制取饲钙大致分3部分:浸取、脱氟、中和.本文主要涉及浸取工段实验研究.采用冀辽内三省交界处精选磷铁矿[w(P2O5)=34%,w(F)=2.65%]和工业盐酸作原料,进行正交实验,得出最优化反应条件为:盐酸质量分数24%.过量系数1.05,反应温度40℃,反应时间30min.照此优化条件进行实验,可以得到99%以上磷矿分解率,所得磷酸溶液含P2O58.7%,含F0.67%.
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| 关 键 词： | 盐酸法 饲钙 浸取 精选磷铁矿 |
Study on process of decomposition of selected phosphate iron ore for phosphate acid preparation by industrial hydrochloric acid |
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| LONG Fei,SHI Shu-jing,YING Jian-kang. Study on process of decomposition of selected phosphate iron ore for phosphate acid preparation by industrial hydrochloric acid[J]. Industrial Minerals and Processing, 2009, 38(3) |
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| Authors: | LONG Fei SHI Shu-jing YING Jian-kang |
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| Affiliation: | Department of Chemical Engineering of Sichuan University;Chengdu Sichuan 610065;China |
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| Abstract: | Leaching,defluorination and neutralization are involved in production of feed-grade calcium hydrogen phosphate by hydrochloric acid method.This paper mainly deals with research and experiment of leaching part.Take phosphate iron ore from the boundary areas of Hebei,Liaoning and Inner Mongolia provinces which is composed of 34% P2O5,2.56% F and so on,and industrial hydrochloric acid as materials,orthogonal experiment was carried out,with the optimum conditions of concentration of 24%,excessive coefficient of... |
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| Keywords: | hydrochloric acid method feed-grade calcium hydrogen phosphate leaching selected phosphate iron ore |
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