Removal of Copper from Roasted Molybdenite Concentrate by Sulfuric Acid

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2007 Vol.44, Issue 3 Preview Page Next Page

Removal of Copper from Roasted Molybdenite Concentrate by Sulfuric Acid 황산에 의한 휘수연석의 배소정광으로부터 동의 제거: 김병수.Manis Kumar Jha.유경근.정진기.이재천
Byung-Su Kim, Manis Kumar Jha, Kyoungkeun Yoo, Jinki Jeong and Jae-chun Lee

30 June 2007. pp. 244-251

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Abstract

It is very important to remove copper from roasted molybdenite concentrate for making molybdenum oxide which is required for the production of alloyed steel. In the paper, a study for removing copper from roasted molybdenite concentrate by sulfuric acid leaching was carried out. From the experiments, it was found that the optimum condition for removing copper is the sulfuric acid of 1.5 vol.%, the leaching temperature of 25℃, the S/L ratio of 1,000 g/L, and the leaching time of 30 minutes. It was also verified that the recovery efficiency of molybdenum was improved by holding the leach liquor up to 30 minutes after leaching. The leach residue obtained at the optimum condition contains over 80% MoO3 and below 0.5% Cu, which could be used for the production of alloyed steel. At the optimum condition, the recovery ratio of molybdenum was 98～99%. Also, copper could be recovered from the leach liquor by cementation method using iron sheets as a reducing agent.

Keywords

Molybdenite

Sulfuric acid leaching

Molybdenum oxide

Molybdenum

Cementation

휘수연석의 배소정광으로부터 제강용 산화몰리브덴(MoO3) 분말을 제조하기 위해서는 동을 제거하는 것이 매우 중요하다. 본 연구에서는 황산침출에 의하여 휘수연석의 배소정광으로부터 동을 침출, 제거하는 연구를 수행하였다. 실험 결과 휘수연석의 배소정광으로부터 동을 효과적으로 침출, 제거하기 위한 최적침출조건은 황산농도 1.5 vol.%, 침출온도 25℃, 고액비 1,000 g/L, 침출시간 30분인 것으로 나타났다. 또한 침출반응 종료 후 30분 이상 정치함으로서 몰리브덴의 회수율이 향상되는 것으로 나타났다. 최적조건에서 침출잔사로 회수된 산화몰리브덴의 분말은 80% 이상 MoO3, 0.5% 미만 Cu를 함유함으로서 제강용 합금원소로 사용이 가능한 것으로 분석되었다. 최적조건에서 침출잔사로 회수된 Mo의 회수율은 98～99%이였으며, 침출액에 존재하는 동은 철을 환원제로 사용하는 시멘테이션 방법으로 회수할 수 있었다.

키워드

휘수연석

황산침출

산화몰리브덴

몰리브덴

시멘테이션

References

Barry, H.F., Hallada, C.J., and McConnel, R.W., 1972, U.S. Patent 3,656,88, April 18, 1972.
Burkin, A.R., 1997, “Molybdenum,” in Handbook of Extractive Metallurgy, Edited by Habashi, Fathi, WILEY-VCH, Germany, pp. 1363.
Bhappu, R.B., 1979, Hydrometallurgy, in International Molybdenum Encyclopaedia 1778-1978, Vol. 2, Processing and Metallurgy, Edited by Sutulov, A., Intermet Publications, Santiago, Chile, pp. 241.
Bhappu, R.B., Reynolds, D.H., Roman, R.J., and Schwab, D.A., 1965, Hydrometallurgical Recovery of Molybdenum from the Quest Mine, Circular 81, New Mexico Institute of Mining and technology, State Bureau of Mines and Minerals Resources, Campus Station, Socorro, NM, pp. 22.
Burley, J., 1978, “Mineralogy,” in International Molybdenum Encyclopaedia, Vol. 1, Resources and Production, Edited by Sutulov, A., Intermet Publications, Santiago, Chile, pp. 228.
Dorfler, R.R. and Laferty, J.M., 1981, “Review of molybdenum recovery processes”, J. Met., Vol. 33(4), pp. 48-54.
Dresher, W.H., Wadsworth, M.E., and Fassel, W.M., Jr., 1956, “A kinetic study of the leaching of molybdenite,” J. Met., Vol. 8(6), pp. 794-800.
Guccione, E., 1967, “First chemical route for molybdenum processing,” Chem. Eng., Vol. 16(January), pp. 140.
Gupta, C.K., 1992a, “Resources and Processing,” in Extractive Metallurgy of Molybdenum, CRC Press, Inc., N.Y., USA, pp. 76-78.
Gupta, C.K., 1992b, “Properties and Applications of Molybdenum,” in Extractive Metallurgy of Molybdenum, CRC Press, Inc., N.Y., USA, pp. 55-58.
Jennings, P.H., Stanley, R.W., and Ames, H. L., 1973, “Development of a process for purifying molybdenite,” in Proceedings of International Symposium on Hydrometallurgy, Chicago, IL, March 1973, pp. 868-883.
Juneja, J.M., Singh, S., and Bose, D.K., 1996, “Investigation on the extraction of molybdenum and rhenium values from low grade molybdenite concentrate,” Hydrometallurgy, Vol. 41(2-3), pp. 201-209.
Kerfoot, D.G.E., and Stanley, R.W., 1976, “Hydrometallurgical production of technical grade molybdic oxide from molybdenite,” U.S. Patent 3,988,418, 1976.
King, R.U., Shawe, D.R., and Mackevett, E.M., Jr., 1973, “Molybdenum,” in U.S. Minreal Resources, U.S. Geol. Surv. Prof. Paper. 820, pp. 425.
Leichteried, G., 1997, “Molybdenum,” in Handbook of Extractive Metallurgy, Edited by Habashi, Fathi, WILEYVCH, Germany, pp. 1374-1375.
Lowell, D.J., 1978, “Porphyry model,” in International Molybdenum Encyclopaedia, Vol. 1, Resources and Production, Edited by Sutulov, A., Intermet Publications, Santiago, Chile, pp. 261.
Magyar, M.J., 2005, “Molybdenum,” in Minerals Yearbook, Volume 1, Metals and Minerals, U.S. Geo;ogical Survey, U.S. Department of the Interior, Washington D.C., USA. pp. 51.1.-51.11.
Peters, E., 1976, “Direct leaching of sulfides: chemistry and applications,” Metall. Trans., 7B(4), pp. 505-517.
Scheiner, B.J., Pool, D.L., and McClelland, G.E., 1979, “Prototype commercial electrooxidation cell for the recovery of molybdenum and rhenium from molybdenite concentrates,” U. S. Bur. Mines Rep. Invest., No. 8145. Bureau of Mines, Reno, NV, USA.
Sutulov, A., 1976, Molybdenum and Rhenium 1778-1977, University of Concepcion, Chile, pp. 153.
Tytko, K.-H. and Trobisch, U, 1986, “Molybdenum oxide hydrates, Oxomolybdenum species in aqueous solution,” Molybdenum Supplement Vol. B 3a, in Gmelin Handbook of Inorganic Chemistry, 8th Edition, Springer-Vertag, Berlin, Germany, pp. 1-39.
Van den Berg, J.A.M., Yang, Y., Nauta, H.H.K., van Sandwijk, A., and Reuter, M.A., 2002, “Comprehensive processing of low grade sulphidic molybdenum ores,” Mineral Engineering, Vol. 15(11), pp. 879-883.
Vizsolyi, A., and Peters, E., 1980, “Nitric acid leaching of molybdenite concentrates,” Hydrometallurgy, Vol. 6(1-2), pp. 103-119.
Warren, I.H., Ismay, A., and King, J., 1977, “The leaching of molybdenite with sodium hypochlorite solutions,” Can. Metall. Q., Vol. 16, pp. 11.
Woodcock, J.R. and Hollister, V.F., 1978, “Porphyry molybdenite deposits of the Western Hemisphere,” Miner. Sci. Eng., Vol. 10(1), pp. 3-18.
Zelikman, A.N., Krein, O.E., and Samsonov, G.V., 1966, “Molybdenum,” in Metallurgy of Rare Metals, 2nd ed., Israel Program for Scientific Translations, Jerusalem, Israel, pp. 60. (available from the U.S. Dept. of Commerce, Clearinghouse for Federal Scientific and Technical Information, Springfield, VA., USA)

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society for Geosystem Engineering
Journal Title(Ko) :한국지구시스템공학회지
Volume : 44
No :3
Pages :244-251

[1] Barry, H.F., Hallada, C.J., and McConnel, R.W., 1972, U.S. Patent 3,656,88, April 18, 1972.

[2] Burkin, A.R., 1997, “Molybdenum,” in Handbook of Extractive Metallurgy, Edited by Habashi, Fathi, WILEY-VCH, Germany, pp. 1363.

[3] Bhappu, R.B., 1979, Hydrometallurgy, in International Molybdenum Encyclopaedia 1778-1978, Vol. 2, Processing and Metallurgy, Edited by Sutulov, A., Intermet Publications, Santiago, Chile, pp. 241.

[4] Bhappu, R.B., Reynolds, D.H., Roman, R.J., and Schwab, D.A., 1965, Hydrometallurgical Recovery of Molybdenum from the Quest Mine, Circular 81, New Mexico Institute of Mining and technology, State Bureau of Mines and Minerals Resources, Campus Station, Socorro, NM, pp. 22.

[5] Burley, J., 1978, “Mineralogy,” in International Molybdenum Encyclopaedia, Vol. 1, Resources and Production, Edited by Sutulov, A., Intermet Publications, Santiago, Chile, pp. 228.

[6] Dorfler, R.R. and Laferty, J.M., 1981, “Review of molybdenum recovery processes”, J. Met., Vol. 33(4), pp. 48-54.

[7] Dresher, W.H., Wadsworth, M.E., and Fassel, W.M., Jr., 1956, “A kinetic study of the leaching of molybdenite,” J. Met., Vol. 8(6), pp. 794-800.

[8] Guccione, E., 1967, “First chemical route for molybdenum processing,” Chem. Eng., Vol. 16(January), pp. 140.

[9] Gupta, C.K., 1992a, “Resources and Processing,” in Extractive Metallurgy of Molybdenum, CRC Press, Inc., N.Y., USA, pp. 76-78.

[10] Gupta, C.K., 1992b, “Properties and Applications of Molybdenum,” in Extractive Metallurgy of Molybdenum, CRC Press, Inc., N.Y., USA, pp. 55-58.

[11] Jennings, P.H., Stanley, R.W., and Ames, H. L., 1973, “Development of a process for purifying molybdenite,” in Proceedings of International Symposium on Hydrometallurgy, Chicago, IL, March 1973, pp. 868-883.

[12] Juneja, J.M., Singh, S., and Bose, D.K., 1996, “Investigation on the extraction of molybdenum and rhenium values from low grade molybdenite concentrate,” Hydrometallurgy, Vol. 41(2-3), pp. 201-209.

[13] Kerfoot, D.G.E., and Stanley, R.W., 1976, “Hydrometallurgical production of technical grade molybdic oxide from molybdenite,” U.S. Patent 3,988,418, 1976.

[14] King, R.U., Shawe, D.R., and Mackevett, E.M., Jr., 1973, “Molybdenum,” in U.S. Minreal Resources, U.S. Geol. Surv. Prof. Paper. 820, pp. 425.

[15] Leichteried, G., 1997, “Molybdenum,” in Handbook of Extractive Metallurgy, Edited by Habashi, Fathi, WILEYVCH, Germany, pp. 1374-1375.

[16] Lowell, D.J., 1978, “Porphyry model,” in International Molybdenum Encyclopaedia, Vol. 1, Resources and Production, Edited by Sutulov, A., Intermet Publications, Santiago, Chile, pp. 261.

[17] Magyar, M.J., 2005, “Molybdenum,” in Minerals Yearbook, Volume 1, Metals and Minerals, U.S. Geo;ogical Survey, U.S. Department of the Interior, Washington D.C., USA. pp. 51.1.-51.11.

[18] Peters, E., 1976, “Direct leaching of sulfides: chemistry and applications,” Metall. Trans., 7B(4), pp. 505-517.

[19] Scheiner, B.J., Pool, D.L., and McClelland, G.E., 1979, “Prototype commercial electrooxidation cell for the recovery of molybdenum and rhenium from molybdenite concentrates,” U. S. Bur. Mines Rep. Invest., No. 8145. Bureau of Mines, Reno, NV, USA.

[20] Sutulov, A., 1976, Molybdenum and Rhenium 1778-1977, University of Concepcion, Chile, pp. 153.

[21] Tytko, K.-H. and Trobisch, U, 1986, “Molybdenum oxide hydrates, Oxomolybdenum species in aqueous solution,” Molybdenum Supplement Vol. B 3a, in Gmelin Handbook of Inorganic Chemistry, 8th Edition, Springer-Vertag, Berlin, Germany, pp. 1-39.

[22] Van den Berg, J.A.M., Yang, Y., Nauta, H.H.K., van Sandwijk, A., and Reuter, M.A., 2002, “Comprehensive processing of low grade sulphidic molybdenum ores,” Mineral Engineering, Vol. 15(11), pp. 879-883.

[23] Vizsolyi, A., and Peters, E., 1980, “Nitric acid leaching of molybdenite concentrates,” Hydrometallurgy, Vol. 6(1-2), pp. 103-119.

[24] Warren, I.H., Ismay, A., and King, J., 1977, “The leaching of molybdenite with sodium hypochlorite solutions,” Can. Metall. Q., Vol. 16, pp. 11.

[25] Woodcock, J.R. and Hollister, V.F., 1978, “Porphyry molybdenite deposits of the Western Hemisphere,” Miner. Sci. Eng., Vol. 10(1), pp. 3-18.

[26] Zelikman, A.N., Krein, O.E., and Samsonov, G.V., 1966, “Molybdenum,” in Metallurgy of Rare Metals, 2nd ed., Israel Program for Scientific Translations, Jerusalem, Israel, pp. 60. (available from the U.S. Dept. of Commerce, Clearinghouse for Federal Scientific and Technical Information, Springfield, VA., USA)

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