Exploring the Influences on Entrainment of Serpentines by Grinding and Reagents
This paper presents the influences on the entrainment
of serpentines by grinding and reagents during copper–nickel sulfide
flotation. The previous bench flotation tests were performed to extract
the metallic values from the ore in Yunnan Mine, China and the
relatively satisfied results with recoveries of 86.92% Cu, 54.92% Ni,
and 74.73% Pt+Pd in the concentrate were harvested at their grades of
4.02%, 3.24% and 76.61 g/t, respectively. However, the content of
MgO in the concentrate was still more than 19%. Micro-flotation tests
were conducted with the objective of figuring out the influences on the
entrainment of serpentines into the concentrate by particle size,
flocculants or depressants and collectors, as well as visual
observations in suspension by OLYMPUS camera. All the tests results
pointed to the presences of both “entrapped-in” serpentines and its
coating on the hydrophobic flocs resulted from strong collectors
(combination of butyl xanthate, butyl ammonium dithophosphate,
even after adding carboxymethyl cellulose as effective depressant.
And fine grinding may escalate the entrainment of serpentines in the
concentrate.
[1] Y. Lu, M. Zhang, Q.Feng, T. Long, L. Lou and G. Zhang, “Effect of
sodium hexametaphosphate on separation of serpentine from pyrite.”
Trans. Nonferrous Metals Soci. China, vol. 21, 2011, pp. 208-213.
[2] E.J.Wellham, L.ElberandS.Yand, “The role of carboxy methyl cellulose
in the flotation of a nickel sulfide transition ore,”Miner. Eng.,vol. 5, 1992,
pp. 381-395.
[3] J.Y.Witney and D.S. Yan , “Reduction of magnesia in nickel concentrates
by modification of the froth zone in column flotation.” Miner. Eng., vol.
10, 1997, pp. 139-154.
[4] S.M.Bulatovic, “Use of organic polymers in the flotation of polymetallic
ores: a review,” Miner. Eng., vol. 12, 1999, pp. 341-354.
[5] S.M.Bulatovic, “Evaluation of alternative reagent schemes for the
flotation of platinum group mineralsfrom various ores,” Miner. Eng., vol.
16, 2003, pp. 931-939.
[6] K.E.Bremmell, D.Fornasiero and J. Ralston, “Pentlandite-lizardite
interactions and implications for their separation by flotation,” Colloids
Surf. A: Physicohem Eng. Aspects, vol. 252, 2005, pp. 207-212.
[7] G. R. Edwards, W.B.Kipkie and G. E. Agar, “The effect of slime coatings
of the serpentine minerals, chrysotile and lizardite on pentandite
flotation,” Int. J Miner. Process. vol. 7, 1980, pp. 33-42.
[8] M.C.Pietrobon, S.R.Grano, S.Sobieraj and J. Ralston, “Recovery
mechanisms for pentlandite and MgO-bearing gangue minerals in nickel
ores from Western Australia,” Miner. Eng., vol. 10, 1997, pp. 775-786.
[9] G.V.Rao, “Nickel and cobalt ores: flotation,” Encyclopedia of Separation
Science, 2007, pp.3491-3500.
[10] V.Kirjavainen, and K.Heiskanen, “Some factors that affect beneficiation
of sulfide nickel-copper ores,” Miner. Eng. vol. 20, 2007, pp. 629-633.
[11] G.D.Senior, L.K.Shannon, and W.J.Trahar,“The flotation of pentlandite
from pyrrhotite with particular reference to the effects of particle size,”
Int. J Miner. Process. Vol. 42, 1994, pp. 169-190.
[12] V.Malysiak, C.T.O’Connor and J. Ralston, “Pentlandite-feldsapr
interaction and its effect on separation by flotation,” Int. J Miner. Process.
vol. 66, 2002, pp. 89-106.
[13] V.Bozkurt, Z.Xu and J.A. Finch, “Pentlandite/pyrrhotiite interaction and
xanthate adsorption,” I Int. J Miner. Process.vol. 52, 1998, pp. 203-214.
[14] G.D. Senior and S.A. Thomas, “Development and implementation of a
new flowsheet for the flotation of a low grade nickel ore,” Int. J Miner.
Process.vol. 78, 2005, pp. 49-61.
[15] G.Chen, S.Grano, S.SobierajandJ.Ralson, “The effect of high intensity
conditioning on the flotation of a nickel ore, paper 2: mechanisms,” Miner.
Eng., vol. 12, 1999, pp. 1359-1373.
[16] J.Wiese, P.HarrisandD.Bradshaw, “The response of sulphide and gangue
minerals in selected Merensky ores to increased depressant dosages,”
Miner. Eng., vol. 20, 2007, pp. 989-995.
[17] J.G.Wiese, P.J.Harris and D.J.Bradshaw, “The use of very low molecular
weight polysaccharides as depressant in PGM flotation,” Miner.Eng.,vol.
21, 2008, pp. 471-482.
[18] G.P.Gallios, E.A.Deliyannie, E.N.PelekaandK.A.Matis, “Flotation of
chromite and serpentine,”Sep. Purif. Technol,.vol. 55, 2007, pp. 232-237.
[19] S.M.Bulatovic, “16-Flotation of nickel and nickel-copper ores, in the
handbook of flotation Reagent,” S.M.Bulatovic, Ed, 2007,pp.401-442.
[20] R.H.Xu, “Studies on behavior of serpentines in low-grade Pt-Pd ore of
Jinabaoshan by flotation,” Master Dissertation, Kunming University of
Science and Technology, July, 1999.
[1] Y. Lu, M. Zhang, Q.Feng, T. Long, L. Lou and G. Zhang, “Effect of
sodium hexametaphosphate on separation of serpentine from pyrite.”
Trans. Nonferrous Metals Soci. China, vol. 21, 2011, pp. 208-213.
[2] E.J.Wellham, L.ElberandS.Yand, “The role of carboxy methyl cellulose
in the flotation of a nickel sulfide transition ore,”Miner. Eng.,vol. 5, 1992,
pp. 381-395.
[3] J.Y.Witney and D.S. Yan , “Reduction of magnesia in nickel concentrates
by modification of the froth zone in column flotation.” Miner. Eng., vol.
10, 1997, pp. 139-154.
[4] S.M.Bulatovic, “Use of organic polymers in the flotation of polymetallic
ores: a review,” Miner. Eng., vol. 12, 1999, pp. 341-354.
[5] S.M.Bulatovic, “Evaluation of alternative reagent schemes for the
flotation of platinum group mineralsfrom various ores,” Miner. Eng., vol.
16, 2003, pp. 931-939.
[6] K.E.Bremmell, D.Fornasiero and J. Ralston, “Pentlandite-lizardite
interactions and implications for their separation by flotation,” Colloids
Surf. A: Physicohem Eng. Aspects, vol. 252, 2005, pp. 207-212.
[7] G. R. Edwards, W.B.Kipkie and G. E. Agar, “The effect of slime coatings
of the serpentine minerals, chrysotile and lizardite on pentandite
flotation,” Int. J Miner. Process. vol. 7, 1980, pp. 33-42.
[8] M.C.Pietrobon, S.R.Grano, S.Sobieraj and J. Ralston, “Recovery
mechanisms for pentlandite and MgO-bearing gangue minerals in nickel
ores from Western Australia,” Miner. Eng., vol. 10, 1997, pp. 775-786.
[9] G.V.Rao, “Nickel and cobalt ores: flotation,” Encyclopedia of Separation
Science, 2007, pp.3491-3500.
[10] V.Kirjavainen, and K.Heiskanen, “Some factors that affect beneficiation
of sulfide nickel-copper ores,” Miner. Eng. vol. 20, 2007, pp. 629-633.
[11] G.D.Senior, L.K.Shannon, and W.J.Trahar,“The flotation of pentlandite
from pyrrhotite with particular reference to the effects of particle size,”
Int. J Miner. Process. Vol. 42, 1994, pp. 169-190.
[12] V.Malysiak, C.T.O’Connor and J. Ralston, “Pentlandite-feldsapr
interaction and its effect on separation by flotation,” Int. J Miner. Process.
vol. 66, 2002, pp. 89-106.
[13] V.Bozkurt, Z.Xu and J.A. Finch, “Pentlandite/pyrrhotiite interaction and
xanthate adsorption,” I Int. J Miner. Process.vol. 52, 1998, pp. 203-214.
[14] G.D. Senior and S.A. Thomas, “Development and implementation of a
new flowsheet for the flotation of a low grade nickel ore,” Int. J Miner.
Process.vol. 78, 2005, pp. 49-61.
[15] G.Chen, S.Grano, S.SobierajandJ.Ralson, “The effect of high intensity
conditioning on the flotation of a nickel ore, paper 2: mechanisms,” Miner.
Eng., vol. 12, 1999, pp. 1359-1373.
[16] J.Wiese, P.HarrisandD.Bradshaw, “The response of sulphide and gangue
minerals in selected Merensky ores to increased depressant dosages,”
Miner. Eng., vol. 20, 2007, pp. 989-995.
[17] J.G.Wiese, P.J.Harris and D.J.Bradshaw, “The use of very low molecular
weight polysaccharides as depressant in PGM flotation,” Miner.Eng.,vol.
21, 2008, pp. 471-482.
[18] G.P.Gallios, E.A.Deliyannie, E.N.PelekaandK.A.Matis, “Flotation of
chromite and serpentine,”Sep. Purif. Technol,.vol. 55, 2007, pp. 232-237.
[19] S.M.Bulatovic, “16-Flotation of nickel and nickel-copper ores, in the
handbook of flotation Reagent,” S.M.Bulatovic, Ed, 2007,pp.401-442.
[20] R.H.Xu, “Studies on behavior of serpentines in low-grade Pt-Pd ore of
Jinabaoshan by flotation,” Master Dissertation, Kunming University of
Science and Technology, July, 1999.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:70789", author = "M. Tang and S. M. Wen and D. W. Liu", title = "Exploring the Influences on Entrainment of Serpentines by Grinding and Reagents", abstract = "This paper presents the influences on the entrainment
of serpentines by grinding and reagents during copper–nickel sulfide
flotation. The previous bench flotation tests were performed to extract
the metallic values from the ore in Yunnan Mine, China and the
relatively satisfied results with recoveries of 86.92% Cu, 54.92% Ni,
and 74.73% Pt+Pd in the concentrate were harvested at their grades of
4.02%, 3.24% and 76.61 g/t, respectively. However, the content of
MgO in the concentrate was still more than 19%. Micro-flotation tests
were conducted with the objective of figuring out the influences on the
entrainment of serpentines into the concentrate by particle size,
flocculants or depressants and collectors, as well as visual
observations in suspension by OLYMPUS camera. All the tests results
pointed to the presences of both “entrapped-in” serpentines and its
coating on the hydrophobic flocs resulted from strong collectors
(combination of butyl xanthate, butyl ammonium dithophosphate,
even after adding carboxymethyl cellulose as effective depressant.
And fine grinding may escalate the entrainment of serpentines in the
concentrate.", keywords = "Serpentine, copper and nickel sulfides, flotation,
entrainment.", volume = "8", number = "6", pages = "602-5", }
