The recovery of rare earths (RE) during the wet processing of phosphoric acid is very important, the method of emul-sion liquid membrane (ELM) with di(2-ethylhexly) phosphate (D2EHPA) as carrier has the high selectivity while cannot provide a satisfactory extraction rate. Here novel method of emulsion liquid membrane (ELM) using Aniline as carrier to extract RE from the feed solution was proposed. The method could increase the extraction rate of RE in the real sample to 93%. The effects of dif-ferent parameters such as type and concentration of carrier and surfactant, hydrochloric acid concentration, organic to internal phase volume ratio, membrane to external phase volume ratio on extraction of RE3+ were investigated. Quantitative extraction (>93%) of RE3+ was observed with 6 vol.% Aniline and 4 vol.% T154 liquid membrane at external to internal phase volume ratio of 10 for the feed solution. The proposed method of ELM using Aniline as carrier can be expected to provide a practical, efficient, and economical method for extracting RE from phosphate leach solution with high acidity in the industry of wet process phospho-ric acid.
参考文献
| [1] | Koen Binnemans;Peter Tom Jones;Bart Blanpain;Tom Van Gerven;Yongxiang Yang;Allan Walton;Matthias Buchert.Recycling of rare earths: a critical review[J].Journal of cleaner production,2013Jul.15(Jul.15):1-22. |
| [2] | Koopman C.;Witkamp G.J..Extraction of lanthanides from the phosphoric acid production process to gain a purified gypsum and a valuable lanthanide by-product[J].Hydrometallurgy,20001(1):51-60. |
| [3] | C.Koopman;G.J. Witkamp.Ion exchange extraction during continuous recrystallization of CaSO_4 in the phosphoric acid production process: lanthanide extraction efficiency and CaSO_4 particle shape[J].Hydrometallurgy,20022(2):137-147. |
| [4] | Shaohua Yin;Wenyuan Wu;Xue Bian.Solvent Extraction of La(lll) from Chloride Medium in the Presence of Two Water Soluble Complexing Agents with di-(2-ethylhexyl) Phosphoric Acid[J].Industrial & Engineering Chemistry Research,201325(25):8558-8564. |
| [5] | Kartikey K. Yadav;D.K. Singh;M. Anitha.Studies on separation of rare earths from aqueous media by polyethersulfone beads containing D2EHPA as extractant[J].Separation and Purification Technology,2013:350-358. |
| [6] | Dai L.M.;Minh D.V..Solvent extraction of lanthanides with triisoamylphosphate and di-(2-ethylhexyl)phosphoric acid from trichioroacetic acid and nitric acid solutions[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,20001(1):46-52. |
| [7] | Raju Banda;Ho Seok Jeon;Man Seung Lee.Solvent extraction separation of La from chloride solution containing Pr and Nd with Cyanex 272[J].Hydrometallurgy,2012:74-80. |
| [8] | Junlian Wang;Shengming Xu;Linyan Li.Synthesis of organic phosphinic acids and studies on the relationship between their structure and extraction-separation performance of heavy rare earths from HNO_3 solutions[J].Hydrometallurgy,2013:108-114. |
| [9] | Yang Liu;Ho Seok Jeon;Man Seung Lee.Solvent extraction of Pr and Nd from chloride solution by the mixtures of Cyanex 272 and amine extractants[J].Hydrometallurgy,2014:61-67. |
| [10] | M. Rajasimman;R. Sangeetha, P. Karthik.Statistical optimization of process parameters for the extraction of chromium(VI) from pharmaceutical wastewater by emulsion liquid membrane[J].Chemical engineering journal,20092/3(2/3):275-279. |
| [11] | Wei Peng;Hongpu Jiao;Haochun Shi.The application of emulsion liquid membrane process and heat-induced demulsification for removal of pyridine from aqueous solutions[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2012:372-378. |
| [12] | M.G. Garcia;A.O. Acosta;J. Marchese.Emulsion liquid membrane pertraction of Cr(IIl) from aqueous solutions using PC-88A as carrier[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2013:88-96. |
| [13] | Tatsuo Maruyama;Hironari Matsushita;Jun-ichi Uchida;Fukiko Kubota;Noriho Kamiya;Masahiro Goto.Liquid Membrane Operations in a Microfluidic Device for Selective Separation of Metal Ions[J].Analytical chemistry,200415(15):4495-4500. |
| [14] | Tahereh Kaghazchi;Ali Kargari;Reza Yegani;Abbas Zare.Emulsion liquid membrane pertraction of L-lysine from dilute aqueous solutions by D2EHPA mobile carrier[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,20061/3(1/3):161-171. |
| [15] | Anitha, M.;Ambare, D. N.;Singh, D. K.;Singh, H.;Mohapatra, P. K..Extraction of neodymium from nitric acid feed solutions using an emulsion liquid membrane containing TOPO and DNPPA as the carrier extractants[J].Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers,2015Jun.(Jun.):89-95. |
| [16] | Chaouchi, Sarah;Hamdaoui, Oualid.Extraction of endocrine disrupting compound propylparaben from water by emulsion liquid membrane using trioctylphosphine oxide as carrier[J].Journal of industrial and engineering chemistry,2015:296-305. |
| [17] | Jun Ya;Rajinder Pal.Osmotic swelling behavior of globules of W/O/W emulsion liquid membranes[J].Journal of Membrane Science,20011(1):79-91. |
| [18] | Recep Ali Kumbasar.Selective transport of cobalt (II) from ammoniacal solutions containing cobalt (II) and nickel (II) by emulsion liquid membranes using 8-hydroxyquinoline[J].Journal of industrial and engineering chemistry,20121(1):145-151. |
| [19] | Othman N;Mat H;Goto M.Separation of silver from photographic wastes by emulsion liquid membrane system[J].Journal of Membrane Science,20061/2(1/2):171-177. |
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