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selective flocculation iron ore

(PDF) Selective Flocculation of Dilband Iron Ore, Pakistan

PDF | Selective flocculation for long is known as one of the beneficiation techniques applicable to the concentration of finely disseminated ores. The success of this technique is based on the ...

Selective flocculation studies on iron ore minerals - CORE

Selective flocculation studies on iron ore minerals . By S Subramanian and KA Natarajan. Abstract. Selective flocculation was studied for binary combinations of artificial mixtures of hematite, corundum, and quartz and on a ternary system containing hematite, corundum, and quartz by using starch as the selective flocculant. The important ...

SELECTIVE FLOCCULATION OF FINES - Columbia University

Selective flocculation, followed by a conventional mineral processing technique such as flotation, e1utriation, or sedimentation, is a promising technique for the beneficiation of mineral slimes.

Metallurgical Testing for Iron Ore - sgs.com

metallurgical pilot plants on iron ores, including extremely large plants treating up to 1,000 tonnes of ore and lasting for 6 months. Many complex circuits using autogenous grinding, de-sliming, magnetic separation, gravity separation, selective flocculation, and flotation have been run in …

v117n4a12 Recovery of iron from iron ore slimes by ...

The beneficiation of iron ore slimes by selective flocculation was studied. Polyacrylamide (PAM) and guar gum were used as flocculant, along with sodium hexametaphosphate (SHMP) as a dispersant. The samples collected were initially subjected for chemical and mineralogical studies.

Open Access Selective Flocculation of Banded Hematite ...

Fe with 71% recovery. The overall results indicate that separation of very fine grained hematite present in the BHQ iron ore is feasible by selective flocculation. Keywords: BHQ ore, Selective flocculation, Potato starch, XRD, FTIR, SEM. INTRODUCTION Selective flocculation is …

Selective Flocculation of Iron Ore Slimes: Results of ...

driving the iron ore industry towards finding appropriate strategies for the beneficiation and utilization of alumina rich iron ore slimes. Selective dispersion-flocculation is a commercially proven technology option for the beneficiation of slimes [1–5]. The beneficiation flowsheet being practiced at the

Enhanced recovery of low grade iron ore by selective ...

ABSTRACTBeneficiation of low grade iron ore was carried out by selective flocculation process using different flocculants namely starch amylopectin (AP) and grafted copolymer of amylopectin (GAP). The iron ore used in the investigation was containing 56.98% Fe, 5.45% Al2O3 and 4.22% SiO2. Flocculant dosage, number of floc washing and pH were considered as variable parameters to analyse their ...

Characterization and Beneficiation of Iron Ore Tailings by ...

Abstract. In the present paper, an attempt has been made to beneficiate iron ore tailings by selective flocculation using guar gum and starch as flocculants along with sodium hexametaphosphate (SHMP) as the dispersant.

Selective Flocculation of Iron Ore Slimes: Results of ...

Our earlier work in TRDDC laboratories has demonstrated that selective flocculation with starch and guar gum is sufficiently selective for the reduction of alumina contents and thus this process should be scaled up for the processing of alumina rich Indian iron ore slimes.

THE DISPERSION AND SELECTIVE FLOCCULATION OF …

THE DISPERSION AND SELECTIVE FLOCCULATION OF HEMATITE ORE By Howard James Haselhuhn III A DISSERTATION Submitted in partial fulfillment of the requirements for the ...

US4274945A - Iron ore beneficiation by selective ...

Selective flocculation of iron ores is accomplished through the employment of partially carboxylated polyacrylamides as the selective flocculant. The partially carboxylated polyacrylamides employed in the selective flocculation contain from about 20-65% carboxyl groups and are of a molecular weight in excess of one million.

Selective Flocculation of Zinc Concentrate to Reduce ...

Selective flocculation was used to produce superclean zinc concentrate with minimized silica contamination. Research was carried out on a flotation concentrate from the Jersey Miniere Zinc Company (JMZ) in Gordonsville, Tennessee. The material was first dispersed with sodium silicate and then causticized tapioca starch was used to selectively flocculate the sphalerite, leaving the silica in ...

"THE DISPERSION AND SELECTIVE FLOCCULATION OF HEMATITE ORE ...

Beneficiation of any ore with this fine of a liberation size requires advanced processing methods and is seldom pursued. A single process, known as selective flocculation and dispersion, has been successfully implemented at a plant scale for the beneficiation of fine liberation size hematite ore.

Selective flocculation of low grade iron ore slimes using ...

A study on selective flocculation of low grade iron ore slimes employing carboxymethyl cellulose (CMC) and starch as flocculants and sodiumhexameta phosphate (SHMP) as dispersant has been carried out. The mineralogical studies reveal that the presence of hematite and goethite as major iron …

Selective flocculation of ultrafine iron ore 2. Mechanism ...

The mechanisms involved in the selective flocculation of hematite from kaolinite, using starch as the flocculant, have been investigated. Adsorption isotherms of starch on hematite and kaolinite were measured by a thermogravimetric method, supported by infrared analysis of the adsorbed species and zeta-potential changes on adsorption of starch.

Selective Flocculation and Flotation

The sample contained 35.3 pct iron and represented approximately 2 billion tons of crude material. Selective flocculation and flotation were evaluated in a pilot plant with a feed rate of 900 lb/hr. Concentrates averaging 61. 7 pct iron and 5.1 pct silica were obtained, with an accompanying iron recovery of 67.2 pct.

US4298169A - Selective flocculation, magnetic separation ...

Low-grade, finely disseminated, ores that are not readily amenable to conventional flotation can be upgraded by a selective flocculation-magnetic separation-flotation process. Non-magnetic particles in such an ore can be selectively flocculated either by iron particles in the ore that contain residual magnetite or by the addition of a finely ground magnetic concentrate to the ore.

SELECTIVE DISPERSION FLOCCULATION OF ALUMINA RICH …

Paper No. 6 SELECTIVE DISPERSION – FLOCCULATION OF ALUMINA RICH IRON ORE SLIMES . Venugopal Tammishetti. 1, *, Kaustubh Joshi. 2, Beena Rai. 3. …

Beneficiation of Synthetic Iron Ore Kaolinite Mixture ...

beneficiating the fines, slimes and tailing by selective flocculation, which is defined as the selective agglomeration of iron ore particles using flocculant. In the present study an attempt has been taken to study the applicability of selective flocculation to Indian iron ore using corn starch as flocculant.

Flocculation, filtration and selective flocculation ...

The flocculation and filtration characteristics of typical Indian iron ore fines have been studied using starch as flocculant in the presence of an inorganic electrolyte, namely calcium chloride. The effect of various parameters such as pH, starch and calcium chloride concentrations and pulp density on the settling and filtration rates, turbidity of the supernatant and on residual starch and ...