Assessment and Mechanism Investigation of Selective Flocculation Process for Ultrafine Chromite Particle

During beneficiation of low-grade chromite ore, huge amounts of ultrafine tailings are generated and contain substantial metal values which need to be recovered. Selective flocculation technique is one of the processes for beneficiation of ultrafine particles. Here an attempt was made to establish selective flocculation process by using two types of synthetic mixtures. In addition to this, selective flocculation was also attempted on natural tailings. It was found that it is possible to enrich the chromite value using the selective flocculation process. The selectivity of the wheat starch to the chromite mineral was also investigated using image analysis, FTIR analysis, and zeta potential analysis.

[1]  N. Mandre,et al.  Artificial neural network approach to assess selective flocculation on hematite and kaolinite , 2014, International Journal of Minerals, Metallurgy, and Materials.

[2]  S. K. Biswal,et al.  Performance evaluation for selectivity of the flocculant on hematite in selective flocculation , 2013, International Journal of Minerals, Metallurgy, and Materials.

[3]  F. Farzaneh.  SYNTHESIS AND CHARACTERIZATION OF CR2O3 NANOPARTICLES WITH TRIETHANOLAMINE IN WATER UNDER MICROWAVE IRRADIATION , 2011 .

[4]  S. K. Biswal,et al.  Beneficiation of Synthetic Iron Ore Kaolinite Mixture Using Selective Flocculation , 2010 .

[5]  B. Saikia,et al.  Fourier Transform Infrared Spectroscopic Characterization of Kaolinite from Assam and Meghalaya, Northeastern India , 2010 .

[6]  N. Aslan,et al.  BENEFICIATION OF CHROMITE CONCENTRATION WASTE BY MULTI-GRAVITY SEPARATOR AND HIGH- INTENSITY INDUCED-ROLL MAGNETIC SEPARATOR , 2009 .

[7]  Yue-hua Hu,et al.  Beneficiation of diasporic-bauxite ore by selective flocculation with a polyacrylate flocculant , 2008 .

[8]  Yue-hua Hu,et al.  FTIR analysis of adsorption of poly diallyl-dimethyl-ammonium chloride on kaolinite , 2008 .

[9]  W. Yuhua,et al.  Removal of aluminosilicates from diasporic-bauxite by selective flocculation using sodium polyacrylate , 2008 .

[10]  Sun Wei.  FTIR analysis of adsorption of poly diallyl-dimethyl-ammonium chloride on kaolinite , 2008 .

[11]  A. El-Midany,et al.  Statistical optimisation of some parameters affecting flocculation of Egyptian iron ore , 2007 .

[12]  O. K. Abubakre,et al.  Characterization and Beneficiation of Anka Chromite Ore Using Magnetic Separation Process , 2007 .

[13]  N. D. Rao,et al.  The feasibility of a slip velocity model for predicting the enrichment of chromite in a Floatex density separator , 2007 .

[14]  B. Ipekoglu,et al.  Concentration Studies on Chromite Tailings by Multi Gravity Separator , 2006 .

[15]  A. Arol,et al.  SELECTIVE FLOCCULATION BEHAVIOR OF CHROMITE AND SERPENTINE , 2004 .

[16]  Yue-hua Hu,et al.  Role of crystal structure in flotation separation of diaspore from kaolinite, pyrophyllite and illite , 2003 .

[17]  K. Birdi,et al.  Handbook of Surface and Colloid Chemistry , 2002 .

[18]  P. Schroeder.  INFRARED SPECTROSCOPY IN CLAY SCIENCE , 2002 .

[19]  T. Çiçek,et al.  Applicability of Mozley multigravity separator (MGS) to fine chromite tailings of Turkish chromite concentrating plants , 2002 .

[20]  Ali Güney,et al.  New aspect of chromite gravity tailings re-processing , 2001 .

[21]  M. Çelik,et al.  A new flowsheet for processing chromite fines by column flotation and the collector adsorption mechanism , 1999 .

[22]  Ü. Akdemir,et al.  Selective shear flocculation of chromite from chromite-serpentine mixtures , 1998 .

[23]  L. Warren,et al.  Selective flocculation of ultrafine iron ore. 1. Mechanism of adsorption of starch onto hematite , 1995 .

[24]  P. Weissenborn,et al.  Optimisation of selective flocculation of ultrafine iron ore , 1994 .

[25]  S. Petit,et al.  ESR and IR Evidence for Chromium in Kaolinites , 1993, Clay Minerals.

[26]  S. Ryu,et al.  Preparation and characterization of chromium oxide supported on zirconia , 1993, Journal of Materials Science.

[27]  G. Özbayoǧlu,et al.  Beneficiation and Agglomeration of Chromite—Its Application in Turkey , 1992 .

[28]  P. S. R. Reddy,et al.  Recovery of chromite values from chromite ore beneficiation plant tailings , 1987 .

[29]  R. Smith,et al.  Effects of pretreatment and aging on chromite flotation , 1983 .