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1 Ambe rlite IRC 718 Study on the Separation of Platium Elements by Ambe rlite IRC 7 18 Che lating Res in

2 Ambe rlite IRC 718 Study on the Separation of Platium Elements by Ambe rlite IRC 7 18 Che lating Res in

4 Abstract ph Pt(IV),Au(III) Pd(II)

5 Au(III), Pt(IV) Pd(II) Amberlite IRC M HCl 1M HCl 0.3M Thiourea.

6 Abs tra c t The s e pa ration method of Au(III), Pt(IV) a nd Pd(II) we re studied by a che lating res in, Ambe rlite IRC The s e pa ration of thos e e le me nts was carried out with 1M HCl and 0.3M thiourea in 1M HCl the mixed solution of HCl and thiourea as eluents.

7 .,., (complexing res in) (s e lective res in),.,.. (crown compound) (Crypta nds, Crown Ether )

8 Amberlite IRC- 718 Au(III), Pt(IV) Pd(II) ( ), ph.,

9 Ta lio Urey, 1938 Zeolite 100 Li K. O. Sa muelson., Oak Ridge, 1944 Spedding gr. gr

10 . (stationa ry phase), (mobile phase).. (paper chromatography), (thin layer plate chromatography).,, - capilla ry chromatography, 1mm. tubler chromatography (high performance chromatography)., -. (s ize exclus ion chromatogra rhy).,. - 4-

11 3.. Talior Urey, 1938 Zeolite 100 Li + K SO3 - - COOH, - NH3 + - N(CH3) +. R - H + R + Cl -. R H Cl.. R - H + + Na + R - Na + + H +. R + Cl - + NO3 - R + NO3 - + Cl

12 ,... (diffus ion theory). film diffus ion pa rticle diffus ion, Boyd 0.003M film. 4..,, ph. Amberlite IRC N(CH2COOH)2.. ph. Table

13 Table 1. Typical phys ical properties of Amberlite IRC-718 res in. Appea ra nce Hydrated, opaque beads Shipping Weight 421 bs. / ft 3 ( Na form ) Scree n Grading (wet) Moisture Content 16 to 50 mes h ( U.S. Standa rd Screen ) 62 to 68 % ( Na form) Swelling 40% H Na Cation excha nge ca pacity 1.1 meq/ml wet res in - 7-

14 Amberlite IRC- 718,. ph, EDTA background compos ition. Table 2. Ta ble 2. Suggested ope rating conditions for Ambe rlite IRC ph (minium ph depe nds on application ) 1.5 to 14.0 Maximum Te mpe rature 190 O F ( 90 o C ) ( Na ) 160 o F ( 70 o C ) ( H ) Se rvice Flow Rate Rege ne ration 1.0 to 4.0 gpm / ft 3 ( 8.0 to 32.0 BV / hr ) 5 to 15% HCl or H2SO to 0.50 gpm / ft. ( 2.0 to 4.0 BV /hr ) Ne utra lization ( if necessa ry ) 1 to 3 % Sodium hydroxide or ammonium hydroxide 0.25 to 0.50 gpm / ft. 3 ( 2.0 to 4.0 BV /hr. ) - 8-

15 1. J unsei,. 1.1meq/mL wet res in Amberlite IRC- 718, Au(III),Pt(IV), Pd(II) Jobin Yvon JV 24, ph meter NOVA : Amberlite IRC , 2.5 cm 30 cm, 1.0 M HCl HCl 8cm. - 9-

16 : 105 Amberlite IRC g 100 ml 1000ppm 1.0 ml, ph 1 3 ph 3 6 ph 50mL 24. :, 1.0 ml/min mL (ICP)

17 1. p H ph ph 1-6 Fig. 1. Fig. 1, ph. ph (- CH3COOH). Fig.1 ph 4., Au(III), Pt(IV) Pd(II) ph ph 95%. ph 1.0 Au(III), Pt(IV) Pd(II)., ph Batch Table 3. Table 3 ph 1.0 Pt(IV),Au(III) Pd(II)

19 Table 3. Meta l sorption capacity va lues ( mmol g - 1 ) of different meta l ions in va rious buffer solutions ph Pt(IV) Au(III) Pd(II) Ti(IV) Fe(III) Cu(II) Pb(II)

20 2... Table 4 Au(III) 10 60%, 20., ph 1.0 Cu(II) Pb(II)

21 Ta ble 4. Effect of s ha king time on the sorption ca pacities of the Amberlite IRC 718 res in. Sha king Time ( min ) Sorption Percent ( % ) Au(III) Pt(IV) Pd(II) Cu(II) Pb(II) Res in ta ken : 1g, matrix : ph 1.0 Co nce ntratio n of Meta l io n : 1.0mg/50mL - 15-

22 3.. Amberlite IRC- 718 Pt(IV), Au(III) Pd(II). Table 5 (Amberlite IRC- 7 18) Pt(IV), Au(III) Pd(II) 0.1M, 0.25M, 0.5M 1.0M Batch %. Table 5 Thiourea Pt(IV), Au(III) Pd(II) 100%. ph 1.0 Pt(IV), Au(III) Pd(II) Thiourea. NH4NO3, KSCN

23 Ta ble 5. Desorption perce nt of Pt(IV), Au(III) a nd Pd(II) on Ambe rlite IRC Chelating res in. D e s o r p t i o n Solution NH4NO3 Sulfosa licylic acid KSCN Sodium Sulfide Ma lonic Acid Thiourea Res in take n : 0.2g, Concentration of desorption solution Desorption pe rce nt (%) Au(III) Pt (IV) Pd (II) 0.1 M M M M M M M M M 0 precipitation precipitation 0.25 M M M M M M M M M M M M M M M Conce ntration of meta l ions : 1.0mg/50mL - 17-

24 4. %. Amberlite IRC Pt(IV), Au(III) Pd(II). Table 6 (Amberlite IRC- 718) Pt(IV), Au(III) Pd(II) 0.1M, 0.25M, 0.5M 1.0M Batch. Table 6 HCl Pt(IV), Au(III) Pd(II), HNO3 H2SO4 Pt(IV), Au(III) Pd(II). thiourea %

25 Ta ble 6. Desorption perce nt of Pt(IV), Au(III) a nd Pd(II) on Ambe rlite IRC Chelating res in. D e s o r p t i o n Solution Concentration Desorption pe rce nt (%) Au(III) Pt (IV) Pd (II) 0.1 M H2SO M M M M HNO M M M M HCl 0.25 M M M Res in ta ke n : 0.2g, Conce ntration of meta l ions : 1.0mg/50mL - 19-

26 5. Pt(IV), Au(III) Pd (II). Amberlite IRC- 718 Pt(IV), Au(III) Pd(II) 0.1mg 1L 10cm 0.3M thiourea 20-30mL.(Table 7) Amberlite IRC Pt(IV), Au(III) Pd(II)

27 Table 7. Preconcentration factors for Au(III), Pt(IV) and Pd(II). Metal ion Volume ( ml ) Conce ntration ( ppm ) ph Desorption Solution Recovery (%) preconcentration factor * Au (III) M Thiourea Pt (IV ) M Thiourea P d (II) M Thiourea * One lite r sample solutions conta ining 0.1 mg meta l ion we re loaded on the column a nd e luted with 20mL of 0.3M Thiourea Column : 3.14 X 0.5cm 2 X 10cm

28 6... 1mL/min.. Fig.2 25mL 2.5mg Au(III) 5.0mg Fe(III) Cu(II), 1M HCl 0.25M thiourea+1.0m HCl., Au(III)., Fig.3, 1M HCl 0.3M thiourea + 0.1M HCl., Au(III), Pt(IV) Pd(II)

31 Amberlite IRC thiourea HCl, thiourea. 3. Amberlite IRC

32 1. Schmuckler, G. Talanta. 1963, 10, Myasoedova, G. V. ; Antokol's kava, I. I. ; Savvin, S. B. Talanta. 1985, 32, Pa i, S. C. Anal. Chem. 1988, 211, Pa i, S. C. Anal. Chem. 1988, 211, Stracha n, D. M. ; Tymochowicz, S. ; Schube rt, P.; Kingstone, H. M. Anal. Chim. Acta. 1989, 220, Philips, R. J. ; Fritz, J. S. Chim. Acta. 1982, 193, Sha h, A. ; Devi, S. Analys t. 1985, 110, Moha mmed, D. M. Analys t. 1987, 112, Ueda, K. ; Sa ro, Y. ; Yos homura, O. ; Ya mamoto, Y. Analyst. 1988, 113, Iss hiki, K. ; Na kaya ma, E. Anal. Chem. 1987, 59,

33 .,...,,,

表紙（化学）

表紙（化学） 수험 번호 성 명 2013년 일본 공과대학 학부 유학생 파견 선발 시험 화 학 (90분 100점) 주 의 1 시험시작의 지시가 있을 때까지 열지 마시오. 2 해답은 해답용지의 지정된 난 안에 알아보기 쉽게 기입하시오. 3 해답에 한글이 포함되면 채점되지 않습니다. 필요한 경우, 아래의 값을 사용하시오. 원자량 H 1.0, C 12, N 14, O 16, Cu