부유선별법에 의한 제련용 몰리브덴 정광의 회수

박철현; 전호석; 김병곤; 한오형; Chul-Hyun Park; Ho-Seok Jeon; Byoung-Gon Kim; Oh-Hyung Han

Korean Journal of Materials Research, Vol.19, No.12, 661-666, December, 2009

DOI10.3740/MRSK.2009.19.12.661 Export Citation

부유선별법에 의한 제련용 몰리브덴 정광의 회수

Recovery of Roasting-Molybdenite Concentrate by Froth Flotation

박철현, 전호석^†, 김병곤, 한오형¹

한국지질자원연구원
¹조선대학교

Chul-Hyun Park, Ho-Seok Jeon^†, Byoung-Gon Kim, and Oh-Hyung Han¹

Korea Institute of geoscience and material resources, Gwahang-no 92, Yuseong-gu, Daejeon, 305-350 Korea
¹Chosun University, 375 Seosuk-dong, Dong-gu, Gwangju, 501-759, Korea

E-mail:

Froth flotation has been carried out in order to produce roasting-molybdenite concentrate from molybdenite ore in the Shin-yeomi mine. In our study, roasting-molybdenite (Mo 0.43%) from Shin-yeomi mine was recovered by varying the conditions of regrinding time, dosage of collector and alkalinity. Liberation and flotation efficiency more were effective at regrinding time of six minutes than at single grinding. Mo recovery curves increased considerably as dosage of kerosene increased, whereas Mo grade curves decreased gradually. The separation efficiency of molybdenite was effective when the dosage of collector (kerosene) was adjusted to 300 g/t. The molybdenite concentrate was agglomerated in the range of pH 5-7 and its separation efficiency increased to pH 9-10. The concentrate of 49.5% Mo grade (MoS2, 82.6%) with 81.5% recovery from Shin-yeomi molybdenite ores was obtained under conditions of 20% pulp concentration, 300 g/t kerosene 325 g/t frother (AF65), 2.5 kg/t depressant (Na2SiO3), pH 9-10 and four cleaning times. In the future, a trial run that can separate up to 50% Mo grade from Shin-yeomi molybdenite ores will be performed.

Keywords:molybdenite;MoS2;froth flotaion;regrinding;collector;pH

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[1] Kim BS, Jha MK, Yoo KK, Jeong JK, Lee JC, Kor. Soc. Geosys. Eng., 44(3), 244 (2007)

[2] Jeon HS, Park CH, Han OH, Proceedings of Korean Society for Geosystem Engineering (Sseoul National University, Seoul, April, 2009, in Korean). p. 97. (2009)

[3] Kim BS, Sohn JS, Lee JC, Jeon HS, Trends Met. & Mater. Engineering, (in Korean), 21(4), 20 (2008)

[4] Chander S, Fuerstena DW, Trans. SME, 252, 62 (1972)

[5] Gupta CK, Extractive Metallurgy of Molybdenum, p.404, CRC press, India, 404 (1992). (1992)

[6] Ronzio RA, J. Am. Oil Chem. Soc., 47, 504 (1970)

[7] Zanin M, Ametov I, Grano S, Zhou L, Skinner W, Int. J. Miner. Process., 93(3-4), 256 (2009)

[8] Smit FJ, Bhasina K, Int. J. Miner. Process, 15, 19 (1985)

[9] Bulatovic SM, Handbook of flotation reagents, p.446, Elsevier, Netherlands (2007). (2007)

[10] Joo ES, Ahn BL, Lee KS, J. Mater. Res., 4(3), 364 (1994)