화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2013년 가을 (10/30 ~ 11/01, 대전컨벤션센터)
권호 17권 2호
발표분야 포스터-환경.에너지
제목 Adsorption characteristics for gold-cyanide complex from industrial wastewater using Dowex 21K XLT resin
초록 The Dowex 21K XLT resin which is a strong basic resin was used to selectively adsorb gold-cyanide complex only, in the actual waste rinse water which coexisted with lead-cyanide complexes. The maximum removal efficiency value for gold-cyanide complex was about 93% for 10g/L of resin concentration while adsorption for lead-cyanide complexes did not almost happen at pH 13. The adsorption capacity of Dowex 21K XLT resin for gold and lead-cyanide complexes was about 32 and 0.8 mg/g-dry mass, respectively. Also, most of adsorption process for gold-cyanide complex was completed within 1h. The exothermic nature of gold-cyanide complex adsorption onto the Dowex 21K XLT resin was revealed because the removal efficiency for gold-cyanide somewhat decreased as temperature increased.
저자 전충
소속 강릉원주대
키워드 Dowex 21K XLT resin; Gold-cyanide complex; Adsorption; Removal
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