| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.2627 |
| 발표분야 |
환경 |
| 제목 |
Recovery of gold from chloride solutions using lipid-containing alginate capsule |
| 초록 |
Gold is one of the precious metals having great demand. The present study investigates the advantage of hollow alginate capsule containing lipid (phosphatidylcholine, derived from egg yolk) for the sorption and recovery of gold from their secondary sources like electronic scrap. Sorption process was carried out in 0.1M HCl solutions where the effect of pH was negligible. Langmuir and Freundlich adsorption isotherms were constructed from equilibrium adsorption results. The maximum adsorption capacity of 259 mg/g was observed. Pseudo-second- order kinetic model was better to fit the kinetic results than pseudo-first-order kinetic model. Desorption studies were successfully carried out using 5% thiourea in 2M HCl to recollect the gold from gold-sorbed capsules. The regenerated sorbent can be reused 4-5 times. |
| 저자 |
Prtatap Kotte1, Munagapati Venkata Subbaiah2, 김 석3, 윤영상4
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| 소속 |
1전북대, 2Department of BIN Fusion Technology, 3WCU Project, 4Department of Chemical Engineering |
| 키워드 |
Gold recovery; Lipid capsule
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| E-Mail |
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| 원문파일 |
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