Inorganic Chemicals Industry >
Removal of calcium chloride from crude phosphoric acid by hydrochloric acid method
Received date: 2020-02-14
Online published: 2020-08-12
Phosphoric acid is an important raw material of chemical industry,which is widely used in many fields.The traditional sulfuric acid process will produce a large amount of phosphogypsum. The utilization of phosphogypsum is lack of mature technology and low utilization rate. It is easy to cause environmental pollution and bring cost pressure to enterprises. More- over,the sulfuric acid process has certain requirements for the grade of phosphate rock.Compared with sulfuric acid process,the hydrochloric acid method has unique advantages. The main components of crude phosphoric acid by hydrochloric acid method are phosphoric acid and calcium chloride. The removal technology and comprehensive utilization for calcium chloride are the key factors hindering the large-scale industrial application of hydrochloric acid method. The removal technologies for calcium chloride, such as melamine method,ion exchange method,liquid membrane method and the present situation of comprehensive utilization of calcium chloride waste liquor were introduced respectively. Aiming at the problems existing in the hydrochloric acid process,some suggestions were put forward. It was pointed out that economic and efficient removal of calcium chloride from crude phosphoric acid by hydrochloric acid process and its effective utilization are the key to the popularization and application of wet process phosphoric acid by hydrochloric acid method.
Xiaoxiong Wang , Jiangang Zhang , Wenjing Zhang , Ye Chen . Removal of calcium chloride from crude phosphoric acid by hydrochloric acid method[J]. Inorganic Chemicals Industry, 2020 , 52(8) : 17 -19 . DOI: 10.11962/1006-4990.2019-0461
| [1] | Zafa Z I, Ashraf M. Selective leaching kinetics of calcareous phosphate rock in lactic acid[J]. Chemical Engineering Journal, 2007,131(1):41-48. |
| [2] | 刘代俊, 蒋绍志, 罗洪波, 等. 中国磷矿资源贫化危机与挑战[J]. 无机盐工业, 2005,37(5):1-4. |
| [3] | 黄雷, 王君, 廖宗文, 等. 中低品位磷矿直接利用技术研究进展[J]. 化工矿物与加工, 2012,41(4):32-37. |
| [4] | 杨兆娟, 向兰. 磷石膏综合利用现状评述[J]. 无机盐工业, 2007,39(1):8-10. |
| [5] | 李鑫, 丁一刚, 杨昌炎, 等. 萃取剂在湿法磷酸净化中的选择性研究[J]. 化工矿物与加工, 2010,39(3):6-7,41. |
| [6] | 张志强, 张彩棉, 孙滢博, 等. 甲基异丁基酮净化湿法磷酸的研究[J]. 无机盐工业, 2014,46(7):20-22. |
| [7] | 张志强, 刘海洋, 邢英, 等. 磷酸三丁酯和二异丙醚溶剂萃取体系净化湿法磷酸的研究[J]. 无机盐工业, 2012,44(9):42-44. |
| [8] | 李军, 金央罗, 建洪, 等.盐酸分解中低品位磷矿制备工业级和食品级磷酸的方法:中国,101774556[P]. 2010-07-14. |
| [9] | 侯长军, 霍丹群, 党洁修. 磷酸三聚氰胺复盐结晶法净化湿法磷酸技术进展[J]. 化工进展, 1996,13(5):32-35. |
| [10] | 熊祥祖, 徐彪, 王威, 等. 大孔阳离子树脂脱除湿法磷酸中阳离子的研究[J]. 武汉工程大学学报, 2011,33(3):36-38. |
| [11] | 熊祥祖, 王威, 李志保, 等. 离子交换树脂脱除湿法磷酸中金属杂质的研究[J]. 武汉工程大学学报, 2009,31(7):27-28. |
| [12] | 张林锋, 熊祥祖, 魏世辕, 李志保, 李文歆. 离子交换法除去湿法磷酸中钙离子的研究[J]. 磷肥与复肥, 2009,24(6):17-18. |
| [13] | 朱道学. 液膜分离法脱除湿法磷酸中高价金属离子的金属[D]. 武汉:武汉工程大学, 2014. |
| [14] | 郭玉川, 钮敏, 许树琴. 氯化钙废液联产碳酸钙及氯化铵技术[J]. 河北科技大学学报, 2003,24(1):59-64. |
| [15] | 王斌, 张宗凡, 罗康碧, 等. 盐酸法湿法磷酸工艺研究现状[J]. 化学工程师, 2014,21(8) : 46-49. |
| [16] | 王曼莉, 李军, 金央. 硫酸钙晶须的制备工艺研究[J].化工矿物与加工, 2010(10):7-10. |
| [17] | 郭玉川, 钮敏, 许树琴. 氯化钙废液联产碳酸钙及氯化铵技术[J]. 河北科技大学学报, 2003,24(1) : 59-64. |
| [18] | 朱明燕, 薛安, 聂登攀, 等. 磷矿盐酸法副产物氯化钙制备碳酸钙联产工业氯化钠的工艺研究[J].化工矿物与加工, 2016(9):16-19. |
/
| 〈 |
|
〉 |