Investigating the best mixture extraction systems in the separation of rare earth elements from nitric acid solution using Cyanex272, D2EHPA, and 8-Hydroxyquinoline

다국어 초록 (Multilingual Abstract)

This study is aimed at determining the optimum mixing ratio and solvent group to extract REEs from nitric leach solution, and the efficiency was tested using three different kinds of extractants, which were prepared to mix three different solvents of Cyanex272, D2EHPA, and HQ. In order to select the best mixture system, different volumes (ml) of solvent extractions were used under optimum conditions (.05 M concentration and pH of 2). The result indicated that the mixture system of Cyanex272 (8 ml) and D2EHPA (2 ml) had the highest separation factor and enrichment ratio in the separation of rare earth element, especially dysprosium. The degree of performance of mixture systems in separation of the rare earth elements indicated that the best extraction systems were in the order of Cyanex272 (8 ml) and D2EHPA (2 ml) > HQ (2 ml) and D2EHPA (8 ml) > Cyanex272 (8 ml) and HQ (2 ml).

참고문헌 (Reference)

1 Wei, D. L., "Thermochemical study on coordination complex of samarium with salicylic acid and 8-hydroxyquinoline" 25 : 253-256, 2007

2 Li, Q. G., "Thermochemical study on coordination complex of neodymium trichloroacetic acid with 8-hydroxyquinoline" 20 : 443-448, 2002

3 Wang, X. L., "The extraction of rare earths using mixtures of acidic phosphorus-based reagents or their thio-analogues" 81 : 761-766, 2006

4 Wu, D. B., "The extraction and separation of Ho, Y, and Er(III)with the mixtures of Cyanex 302 and another organic extractant" 42 : 847-864, 2007

5 Wang, X., "Synergistic extraction study of samarium(III)from chloride medium by mixtures of bis(2, 4, 4-trimethylpentyl)phosphinic acid and 8-hydroxyquinoline" 93 : 48-51, 2012

6 Reddy, M. L. P., "Synergistic extraction of rare earths with bis(2, 4, 4-trimethyl pentyl)dithiophosphinic acid and trialkyl phosphine oxide" 50 : 79-85, 1999

7 Sun, X. B., "Synergistic extraction of rare earths by mixture of bis(2, 4, 4-trimethylpentyl)phosphinic acid and sec-nonylphenoxy acetic acid" 50 : 30-34, 2006

8 Han, W. H., "Synergistic extraction of lanthanide by bis(1-phenyl-3-methyl-5-pyrazolone-4-yl)butanedione-[1, 4] and 8-hydroxyquino line" 24 : 11-14, 2003

9 Zhou, Q. F., "Synergistic extraction of Nd(III)with 1-phenyl-3-methyl-4-benzoyl-5-phrazolone and 8-hydroquiloline" 6 : 42-45, 1994

10 Sun, X. B., "Synergistic extraction and separation of yttrium from heavy rare earths using mixture of sec-octylphenoxy acetic acid and bis(2, 4, 4-trimethylpentyl)phosphinic acid" 533 : 83-88, 2005

11 Wu, D. B., "Synergistic effects in extraction and separation of praseodymium(III)and neodymium(III)with 8-hydroxyquinoline in the presence of 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester" 46 : 6320-6325, 2007

12 Zhou, Q. F., "Synergic extraction of lanthanum(III)with 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone and 8-hydroxyquinoline" 14 : 42-45, 1994

13 Joshi, J. M., "Study on synergistic carriers facilitated transport of uranium(VI)and europium(III)across supported liquid membrane from phosphoric acid media" 96 : 117-122, 2009

14 Jia, Q., "Studies on the solvent extraction of rare earths from nitrate media with a combination of di-(2-ethylhexyl)phosphoric acid and sec-octylphenoxyacetic acid" 84 : 565-569, 2009

15 Miaomiao, T., "Studies on synergistic solvent extraction of rare earth elements from nitrate medium by mixtures of 8-hydroxyquinoline with Cyanex 301 or Cyanex 302" 31 : 604-608, 2013

16 Tong, S. S., "Solvent extraction study of rare earth elements from chloride medium by mixtures of sec-nonylphenoxy acetic acid with Cyanex301 or Cyanex302" 100 : 15-19, 2009

17 Belova, V. V., "Solvent extraction of some lanthanides from chloride and nitrate solutions by binary extractants" 97 : 198-203, 2009

18 Song, N. Z., "Solvent extraction of rare earths with mixtures of di-(2-ethylhexyl)phosphoric acid and sec-nonylphenoxy acetic acid" 37 : 1633-1637, 2009

19 Xu, G. X., "Solvent extraction of rare earths" Science Press 5-, 1987

20 Jia, Q., "Solvent extraction of rare earth elements with mixtures of sec-octylphenoxy acetic acid and bis(2, 4, 4-trimethylpentyl)dithiophosphinic acid" 64 : 345-350, 2009

21 Saleh, M., "Solvent extraction of lanthanum(III)from acidic nitrate-acetato medium by Cyanex 272 in toluene" 63 : 75-84, 2002

22 Yin, S., "Solvent extraction of lanthanum ion from chloride medium by di-(2-ethylhexyl)phosphoric acid with a complexing method" 2 : 75-79, 2013

23 Wu, D. B., "Solvent extraction of Pr and Nd(III)from chloride-acetate medium by 8-hydroquinoline with and without 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester as an added synergist in heptane diluent" 88 : 210-215, 2007

24 Bhattacharyya, A., "Separation of Americium(III)and Europium(III)from nitrate medium using a binary mixture of Cyanex‐301with N‐donor ligands" 24 : 1-17, 2006

25 Wang, X. H., "Separation of Am from macro amount of lanthanides by a countercurrent multistage extraction with purified Cyanex 301 and TBP" 19 : 1007-1015, 2001

26 Wang, X. H., "Separation of Am from lanthanides by a synergistic mixture of purified Cyanex 301 and TBP" 251 : 487-492, 2002

27 Wu, W. Y., "Rare earth metallurgy" Chemical Industry Press 71-, 2005

28 Mathur, J. N., "Mixture of trivalent actinides and lanthanides" 1 : 349-412, 1983

29 Ionova, G., "Mechanism of trivalent actinide/lanthanide separation using synergistic mixtures of di(chlorophenyl)dithiophosphinic acid and neutral O-bearing co-extractants" 25 : 491-501, 2001

30 Ionova, G., "Mechanism of trivalent actinide/lanthanide separation using bis(2, 4, 4-trimethylpentyl)dithiophosphinic acid(Cyanex 301)and neutral O-bearing co-extractant synergistic mixtures" 19 : 391-414, 2001

31 Coupez, B., "Importance of interfacial phenomena and synergistic effects in lanthanide cation extraction by dithiophosphinic ligands : A molecular dynamics study" 107 : 9484-9490, 2003

32 Gupta, C. K., "Extractive metallurgy of rare-earths" CRC Press 2004

33 Qiong Jia, "Extraction of rare earths using mixtures of sec-octylphenoxy acetic acid and organophosphorus acids" 한국화학공학회 27 (27): 1258-1261, 2010

34 Zhang, Q., "Extraction of praseodymium and neodymium with 8-ydroxyquinoline" 25 : 609-612, 2008

35 Zhang, Q., "Extraction of lanthanum with 8-hydroxyquinoline" 14 : 190-193, 2008

36 Bari, M. F., "Extraction mechanism of Gd3+ by BTMPPA" 436 : 187-194, 2007

37 Wang, X. L., "Extraction and stripping of rare earths using mixtures of acidic phosphorus-based reagents" 29 : 413-415, 2011

38 Atanassova, M., "Effect of the 18-crown-6 and benzo-18-crown-6 on the solvent extraction and separation of lanthanide(III) ions with 8-hydroxyquinoline" 52 : 1304-1311, 2007

39 Atanassova, M., "Crown ethers as synergistic agents in the solvent extraction of trivalent lanthanides with 8-hydroxyquinoline" 73 : 29-39, 2008

40 Tian, M., "Applications of the binary mixture of secoctylphenoxyacetic acid and 8-hydroxyquinoline to the extraction of rare earth elements" 111–112 : 109-113, 2012

41 Wang, Y., "A solvent extraction process with mixture of CA12 and Cyanex272 for the preparation of high purity yttrium oxide from rare earth ores" 82 : 197-201, 2011