Inorganic Chemicals Industry >
Study on preparation of phosphoric acid by leaching fluoride residue from wet-process phosphoric acid with organic solvents
Received date: 2021-10-27
Online published: 2022-07-14
The fluoride residue is a solid waste produced in the chemical defluorination process of wet-process phosphoric acid.The effects of leaching time，temperature and liquid-solid ratio on the leaching ratio of P2O5 and F and the phosphor-fluorine ratio［m（P2O5）/m（F）］ were studied by using methanol，ethanol and acetone to leach the fluoride residue for recycling phosphoric acid.The suitable leaching conditions were obtained.After the leaching solution was evaporated and concentrated to recover the leaching agent，the concentrated solution all could meet the requirements of the m（P2O5）/m（F） of wet-process phosphoric acid for producing feed-grade calcium hydrogen phosphate.Considering the cost of the leaching solvents，the leaching ratio of P2O5 and m（P2O5）/m（F），methanol was selected as the optimal leaching solvent，and the leaching conditions of methanol was optimized by response surface methodology.Under the optimized conditions，the leaching ratio of P2O5 was 97.13%，and the m（P2O5）/m（F） of the leaching solution was 51.62.After 5 cycles of solvent recovery and leaching，recovered methanol still had good leaching effect on the fluoride residue.
FU Ziqi , ZHANG Cheng , SHENG Yong , JI Lijun . Study on preparation of phosphoric acid by leaching fluoride residue from wet-process phosphoric acid with organic solvents[J]. Inorganic Chemicals Industry, 2022 , 54(7) : 129 -134 . DOI: 10.19964/j.issn.1006-4990.2021-0654
| 1 | 李维，高辉，罗英杰，等.国内外磷矿资源利用现状、趋势分析及对策建议［J］.中国矿业，2015，24（6）：6-10. |
| LI Wei， GAO Hui， LUO Yingjie，et al.Status，trends and suggestions of phosphorus ore resources at home and abroad［J］.China Mining Magazine，2015，24（6）：6-10. | |
| 2 | 谢晓霞，陈春光，徐建，等.我国湿法磷酸工艺路线发展趋势［J］.当代化工，2014，43（11）：2350-2354. |
| XIE Xiaoxia， CHEN Chunguang， XU Jian，et al.Development trend of the wet phosphoric acid production process in China［J］.Contemporary Chemical Industry，2014，43（11）：2350-2354. | |
| 3 | 杨雄俊，周鑫，谭顺仓，等.湿法磷酸脱氟技术研究［J］.磷肥与复肥，2017，32（8）：8-9. |
| YANG Xiongjun， ZHOU Xin， TAN Shuncang，et al.Study on technology of fluoride removal from wet-process phosphoric acid［J］.Phosphate & Compound Fertilizer，2017，32（8）：8-9. | |
| 4 | 张团慧，向鹏，李国斌，等.湿法磷酸净化技术的研究进展［J］.材料导报，2015，29（15）：113-117. |
| ZHANG Tuanhui， XIANG Peng， LI Guobin，et al.Researches of purification technology for wet-process phosphoric acid［J］.Materials Review，2015，29（15）：113-117. | |
| 5 | AMIN M I， ALI M M， KAMAL H M，et al.Recovery of high grade phosphoric acid from wet process acid by solvent extraction with aliphatic alcohols［J］.Hydrometallurgy，2010，105（1/2）：115-119. |
| 6 | JIN Yang， MA Yujing， WENG Yanling，et al.Solvent extraction of Fe3+ from the hydrochloric acid route phosphoric acid by D2EHPA in kerosene［J］.Journal of Industrial and Engineering Chemistry，2014，20（5）：3446-3452. |
| 7 | 周权宝，李步通，左林桂，等.湿法磷酸中金属离子净化技术研究进展［J］.应用化工，2017，46（7）：1417-1423. |
| ZHOU Quanbao， LI Butong， ZUO Lingui，et al.Research progress on purification technology of metal ions in wet process phosphoric acid［J］.Applied Chemical Industry，2017，46（7）：1417-1423. | |
| 8 | 李燕凤.生产饲料级磷酸氢钙用湿法磷酸净化技术探讨［J］.硫磷设计与粉体工程，2020（4）：22-26，6. |
| LI Yanfeng.Review of technology for purification of wet-process phosphoric acid for production of feed grade calcium hydrogen phosphate［J］.Sulphur Phosphorus & Bulk Materials Handling Related Engineering，2020（4）：22-26，6. | |
| 9 | ELLEUCH M B C， AMOR M B， POURCELLY G.Phosphoric acid purification by a membrane process：Electrodeionization on ion-exchange textiles［J］.Separation and Purification Technology，2006，51（3）：285-290. |
| 10 | 李自炜，周萌，吴宁兰，等.全球饲料磷酸盐生产技术与发展趋势［J］.无机盐工业，2016，48（4）：6-12. |
| LI Ziwei， ZHOU Meng， WU Ninglan，et al.Globe production technology and development trend of feed-grade phosphate［J］.Inorganic Chemicals Industry，2016，48（4）：6-12. | |
| 11 | 霍云飞，陈俊.二水物法、半水物法、半水和二水物再结晶法湿法磷酸工艺的应用比较［J］.磷肥与复肥，2013，28（4）：32-36. |
| HUO Yunfei， CHEN Jun.Comparison of application of dihydrate method，hemihydrate method，hemihydrate and dihydrate recrystallization method for WPA production［J］.Phosphate & Compound Fertilizer，2013，28（4）：32-36. | |
| 12 | 钟文婧，纪利俊，付全军，等.湿法磷酸脱氟渣回收技术研究［J］.化学工程，2019，47（1）：70-73，78. |
| ZHONG Wenjing， JI Lijun， FU Quanjun，et al.Study on recycling of the fluoride residue from wet-process phosphoric acid［J］.Che- | |
| Engineering（China） mical，2019，47（1）：70-73，78. | |
| 13 | 张程，钟文婧，纪利俊，等.湿法磷酸脱氟渣中磷和氟的浸取回收［J］.化学工程，2019，47（8）：1-5，21. |
| ZHANG Cheng， ZHONG Wenjing， JI Lijun，et al.Recovery of phosphorus and fluorine in defluorination sludge from wet-process phosphoric acid by leaching［J］.Chemical Engineering（China），2019，47（8）：1-5，21. | |
| 14 | 李莉，张赛，何强，等.响应面法在试验设计与优化中的应用［J］.实验室研究与探索，2015，34（8）：41-45. |
| LI Li， ZHANG Sai， HE Qiang，et al.Application of response surface methodology in experiment design and optimization［J］.Research and Exploration in Laboratory，2015，34（8）：41-45. | |
| 15 | 钟文婧.湿法磷酸脱氟渣回收工艺研究［D］.上海：华东理工大学，2018. |
| ZHONG Wenjing.Study on recovery technology of fluoride residue from wet process phosphoric acid［D］.Shanghai：East China University of Science and Technology，2018. |
/
| 〈 |
|
〉 |