Results 201 to 210 of about 29,443 (238)

Cationic starches as flocculants of iron ore tailing slime

Minerals Engineering, 2020
Abstract This study aimed to evaluate the use of cross-linked cationic starch and pregelatinized cationic starch as flocculants in the sedimentation of iron ore tailing slime seeking a less toxic and less expensive alternative when compared with the use of polyacrylamide. The characterization of a sample from the slimes thickener’s feed indicated the
Aline da Mata Chiacchio Leite, Érica Linhares Reis   +1 more
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Optimisation of selective flocculation of ultrafine iron ore

International Journal of Mineral Processing, 1994
Abstract A laboratory scale selective flocculation process capable of recovering iron oxide from a sample of ultrafine (less than 10 μm) iron ore tailings containing kaolinite as the main gangue mineral has been developed. Experiments were carried out (i) to select the most appropriate flocculant from a large range of commercially available starches ...
P.K. Weissenborn, L.J. Warren, J.G. Dunn
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Magnetic seeding flocculation of weakly magnetic iron minerals

International Journal of Mineral Processing, 1992
Abstract Magnetic seeding flocculation (MSF) has been proven as a successful pretreatment for High Gradient Magnetic Separation (HGMS) of weakly magnetic, finely-sized oxidized iron minerals such as specularite, limonite, and siderite. The utilization of an anionic polymer with an optimal molecular weight and degree of hydrolysis, sodium silicate ...
Q.Y. Song, F. Xu, S.C. Tsai
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Rheology and Structure of Flocculated Iron Oxide Suspensions

Journal of Colloid and Interface Science, 1996
This paper focuses on the relation between structure and rheology of flocculated suspensions. Rheological measurements were taken both in shear and nearly extensional flows. The structures of magnetic iron oxide suspensions were visualized using cryogenic scanning electron microscopy (Cryo-SEM) and video-enhanced light microscopy (VELM) under shear ...
Reinaldo C. Navarrete, L.E. Scriven, Christopher W. Macosko   +2 more
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Coagulation and Flocculation Study of Iron Ore Fines

Separation Science and Technology, 1999
A comparative study of the flocculation and coagulation response of an iron ore fines suspension has been carried out, and the extent of flocculation has been assessed by measurement of electrophoretic mobility, supernatant clarity, and settling rate. Of the several commercial flocculants and polyelectrolyte studied, the combination of medium molecular
BIMAL SINGH, L. BESRA, A. PRASAD
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Selective flocculation applied to Barsuan iron ore tailings

International Journal of Mineral Processing, 1985
Abstract Experiments have shown that it is possible to obtain a concentrate containing 65% iron, 1.8% alumina and 1.4% silica with an iron recovery of 80% from the tailings of Barsuan iron ore plant containing 52.5% iron, 7.4% alumina and 7.8% silica through selective flocculation employing starch.
K. Hanumantha Rao, K.S. Narasimhan
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A STUDY OF THE FLOCCULATION OF PURE GOETHITE, QUARTZ, AND KAOLINITE AND THE SELECTIVE FLOCCULATION OF AGBAJA IRON ORE. PART III. SELECTIVE FLOCCULATION OF AGBAJA IRON ORE

Journal of Dispersion Science and Technology, 1996
A study of the selective flocculation of Agbaja iron ore with starch and nonionic polyacrylamide flocculants has been conducted to determine the effect of flocculant type. The results indicate that corn starch and cassava starch are effective flocculants for Agbaja iron ore.
C.O. Nebo, L.O. Asuquo, C.K. Nworu, M.C. Fuerstenau   +3 more
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Removal of lead, zinc and iron by coagulation–flocculation

Journal of the Taiwan Institute of Chemical Engineers, 2011
Abstract Aluminium sulfate (alum), polyaluminium chloride (PACl) and magnesium chloride (MgCl 2 ) have been used as coagulants with Koaret PA 3230 as the polyelectrolyte to determine the effectiveness of coagulation method for the removal of heavy metals (Pb, Zn and Fe). The maximum removal of Pb(II) was observed in different distinctive pH ranges: 6.
Fong Moi Pang, Pradeep Kumar, Tjoon Tow Teng, A.K. Mohd Omar, Kailas L. Wasewar   +4 more
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Application of iron flocculation to concentrate white spot syndrome virus in seawater

Journal of Virological Methods, 2022
The iron flocculation method, which comprises the Fe-virus flocculate formation-filtration-resuspension steps, is extensively used to concentrate and precipitate viruses distributed in water. To apply this method to concentrate white spot syndrome virus (WSSV) in seawater, viral genomic and infective recovery yields were compared between polyethylene ...
Min Jae, Kim, Eun Jin, Baek, Kwang Ii, Kim   +2 more
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Photochemical flocculation of terrestrial dissolved organic matter and iron

Geochimica et Cosmochimica Acta, 2013
Abstract Dissolved organic matter (DOM) rich water samples (Great Dismal Swamp, Virginia) were 0.1-μm filtered and UV-irradiated in a solar simulator for 30 days. During the irradiation, pH increased, particulate organic matter (POM) and particulate iron formed.
John R. Helms, Jingdong Mao, Klaus Schmidt-Rohr, Hussain Abdulla, Kenneth Mopper   +4 more
openaire   +1 more source