화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2014년 봄 (04/23 ~ 04/25, 창원컨벤션센터)
권호 20권 1호, p.159
발표분야 공정시스템
제목 Introduction of the extraction of nickel from lateritic ore by sulphatization using sulphuric acid
초록 Experimental method were designed to optimize the sulphatization of a mechanical mixture of chemically pure nickel and iron oxide and a lateritic ore using sulphuric acid. The significance of various parameters and their selectivity for nickel extraction over iron have been established. The interaction among the operating parameters has been introduced using statistically designed experimental method and the data, thus obtained for the pure system, was correlated with that for the lateritic ore. Regression equations were formulated for both systems and the extraction was represented as a function of response variables. The accuracy of the equation has been verified by Fisher’s adequacy test. It was observed that the coefficient of temperature was the most dominant, followed by acid concentration. Interestingly, the time factor induces a small effect on extraction. The process has been further optimised using the steepest ascent method.
저자 황규석1, 박명호1, 정영수2, 김동희2, 안대명1
소속 1부산대, 2에너텍
키워드 leaching
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