염화철 에칭폐액의 용매추출공정 최적화에 관한 연구 = The Optimization of Solvent Extraction Process of Iron Chloride Etching Waste Solution

다국어 초록 (Multilingual Abstract)

In this study, a new organophosphorus acid-based solvent (KMC-P) from KMC Co., Ltd. was used for the recovery of the iron chloride etching waste solution. In order to increase the extraction efficiency for the new solvent in the solvent extraction process, we selected the process variables and conducted the optimization experiment according to the DOE to investigate the correlation between the variables. Solvent concentration, pH, and O/A ratio were found to be factors affecting extraction and stripping efficiency. The optimum stripping efficiency was 69.7% when the solvent concentration was 29.4 wt%, the HCl addition amount was 0 mL, and the O/A ratio was 7, and the reliability was more than 86%.

국문 초록 (Abstract)

본 연구에서는 염화철 에칭폐액 재생을 위하여 ㈜케이엠씨에서 조합한 organophosphorus acid계의 신규용매(KMC-P)를 사용하였으며, 용매추출공정에서 신규 용매에 대한 추출효율을 증가시키기 위해 공정변수를 선정하고 변수간의 상관관계를알아보기 위해서 DOE에 따른 최적화실험을 진행하였다. 용매 농도, pH, O/A ratio가 추출, 탈거효율에 영향을 미치는 인자로 나타났으며 최적의 탈거효율을 갖는 공정조건은 용매 농도 29.4 wt%, HCl 첨가량 0 mL, O/A ratio 7일 때, 최대 69.7%의탈거효율을 기대할 수 있는 결과를 얻었으며 신뢰 수준은 86% 이상인 것을 확인하였다.

참고문헌 (Reference)

1 安鍾寬, "염산용액에서 Alamine336에 의한 니켈과 코발트의 분리" 대한금속·재료학회 40 (40): 799-804, 2002

2 Reddy, B. R, "Solvent Extraction of Ni(II)from Sulfate Solutions with LIX84I: Flow-Sheet for the Separation of Cu(II), Ni(II) and Zn (II)" 20 : 1737-1740, 2004

3 Preston, J. S, "Solvent Extraction of Cobalt and Nickel by Oraganophosphorus Acids I. Comparison of Phosphoric, Phosphonic and Phosphinic Acid Systems" 9 : 115-133, 1982

4 Sole, K. C, "Solvent Extraction Characteristic of Thiosubstituted Organophosphorus Acid Extractants" 30 : 345-364, 1992

5 Sayar, N. A, "Simulation- and Optimisation-Oriented Modelling Considerations for the Extraction of Ni(II) from Its Acidic Aqueous Chloride Solutions into Alamine 336-m-xylene Systems" 95 : 280-284, 2009

6 Komasawa, I, "Separation of Cobalt and Nickel using Solvent Extraction with Acidic Organophosphorus Compounds" 16 : 384-388, 1983

7 Cerpa, A, "Separation of Cobalt and Nickel from Acidic Sulfate Solutions using Mixtures of di(2-ethylhexyl)phosphoric Acid (DP-8R) and Hydroxyoxime (ACORGA M5640)" 79 : 455-460, 2002

8 Lewis, R. J. Sr, "Sax's Dangerous Properties of Industrial Materials" Van Norstrand Reinhold 1992

9 Nan, J, "Recovery of Metal Values from a Mixture of Spent Lithium-Ion Batteries and Nickel-Metal Hydride Batteries" 84 : 75-80, 2006

10 Kyung-Ho Park, "Process for Cobalt Separation and Recovery in the Presence of Nickel from Sulphate Solutions by Cyanex 272" 대한금속·재료학회 12 (12): 441-446, 2006

11 Pashkov, G. L, "Nickel(II) Extraction from Sulphate Media with bis (2,4,4‐Trimethylpentyl)Dithiophosphinic Acid Dissolved in Nonane" 26 (26): 749-763, 2008

12 Huang, T. C, "Extraction of Nickel from Sulfate Solutions by (2-ethylhexyl) Phosphoric Acid Dissolved in Kerosene" 28 : 1557-1561, 1989

13 Singh, R, "Extraction and Separation of Nickel(II) using bis (2,4,4-Trimethyl Pentyl)Dithiophosphinic Acid (CYANEX 301) and Its Recovery from Spent Catalyst and Electroplating Bath Residue" 17 (17): 367-390, 1999

14 Sarangi, K, "Extraction Studies of Cobalt(II) and Nickel(II) from Chloride Solutions using Na-Cyanex 272. Separation of Co(II)/Ni(II) by the Sodium Salts of D2EHPA, PC88A and Cyanex272 and their Mixtures" 52 : 253-265, 1999

15 Koladkar, D. V, "Cobalt-Nickel Separation:The Extraction of Cobalt (II) and Nickel (II) with bis (2-ethylhexyl)phosphonic Acid (PIA-8) in Toluene" 19 (19): 1059-1071, 2001