鹽酸溶液에서 LIX 63 및 Cyanex 301에 의한 지르코늄과하프늄의 溶媒抽出
Solvent Extraction of Zirconium and Hafnium from Hydrochloric Acid solution by LIX 63 and Cyanex 301
0
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
염산용액에서 지르코늄과 하프늄을 분리하기 위해 LIX63과 Cyanex301을 단독 또는 혼합하여 용매추출실험을 수행했다. 상기 추출제를 단독으로 사용하는 경우 염산용액의 pH 1에서 4사이의 범위에서 두 금속은 양이온 추출반응에 의해 추출되었으며, 추출율이 비슷하여 분리가 어렵다. LIX63과 TBP, Cyanex301과 TBP의 혼합용매를 사용하는 경우 본 실험범위에서 역상승효과가 나타났다. Cyanex301과 TBP의 혼합용매의 경우에 염산농도가 증가함에 따라 지르코늄보다 하프늄의 추출율이 급격히 감소하여 분리가능성이 존재하였다. 한편 Cyanex301과 LIX63의 혼합용매의 경우 두 금속의 분리에 효과가 없었다.
Abstract
Solvent extraction experiments have been conducted to separate Zr(IV) and Hf(IV) from chloride solutions by using LIX63and Cyanex301. Zr and Hf were extracted by cation exchange reaction in the pH range from 1 to 4 by the extratants. Since the extraction percentage of the two metals was similar to each other, it was difficult to separate the two metals by using LIX63or Cyanex301. Use of a mixture of LIX63/TBP or Cyanex301/TBP resulted in antagonism in our experimental ranges. Our data showed that there is some possibility of separating the two metals by the mixture of Cyanex301 and TBP because the extraction percentage of Hf decreased more rapidly than that of Zr as HCl concentration was decreased. The mixture of LIX63 and Cyanex301 had little effect on the separation of the two metals.
참고문헌 (16)
- Elvers, B., "Ulmann’S Encyclopedia of Industrial Chemistry" (1989), VCH, Weinhein, Federal Republic of Germany
- Park, P.J., "Nonferrous Metallurgy Engineering", pp.586~594 (1980), Hee Jung Dang
- Taghizadeh, M., "Separation of zirconium and hafnium by solvent extraction using mixture of TBP and Cyanex923", J. of Nuclear Materials, 412, pp.334~337 (2011)
- Nam, C.W., "Status of Zirconium Resources and Processing", Trends in Metals & Materials Engineering, 21, pp.4~14 (2008)
- Taghizadeh, M., "Determination of optimum process conditions for the extraction and hafnium by solvent extraction", Hydrometallurgy, 90, pp.115~120 (2008)
- Kim, S. K., "A Study on the Separation of Hafnium from Zirconium with Versatic Acid-10", J. of Korean Inst. of Metals & Materials, 33(4) (1995)
- Taghizadeh, M, "Separation of zirconium and hafnium by solvent extraction using mixture of TBP and Cyanex923", Journal of Nuclear Materials, 412, pp.334~337 (2011)
- Taghizadeh, M., "Stoichiometric relation for extraction of zirconium and hafnium from acidic nitrate solutions with Cyanex272", Hydrometallurgy, 96, pp.77~80 (2009)
- Smolik, M., "Separation of zirconium and hafnium using Diphonix chelating ion-exchange resin", Hydrometallurgy, 95, pp.350~353 (2009)
- Ramachandra R. B., "Solvent Extraction of zirconium from acid chloride solutions using LIX 84-IC", Hydrometallurgy, 74, pp.173~177 (2004)
- Raju, B., "Separation of Zr from Hf in Hydrochloric Acid Solution Using Amine Based Extractants", IECR, 51(28), pp.9652~9660 (2012)
- Raju, B., "Separation of Zr and Hf from strong hydrochloric acid solution by solvent extraction with TEHA", JRNC, 295(2), pp.1537~1543 (2012)
- Cheng, C.Y., "Solvent extraction of nickel and cobalt with synergistic systems consisting of carboxylic acid and aliphatic hydroxyoxime", Hydrometallurgy, 84, pp.109~117 (2006)
- Biswas, R.K., "Solvent extraction of zirconium(Ⅳ) from chloride media by D2EHPA in kerosene", Hydrometallurgy, 63, pp.149~158 (2002)
- 이만승, "水溶液에서 지르코늄이온의 濃度分布", 자원리싸이클링, 20(6), pp.56~62 (2011), 한국자원리싸이클링학회
- Rajesh, K., "Liquid-Liquid Extraction of Tetravalent Hafnium from Acidic Chloride Solutions using Bis(2,4,4- trimethylpentyl) Dithiophosphinic Acid (Cyanex301)", Separation Science and Technology, 42, pp.865~877 (2007)