24/7 Phone Services 555 666 99 00
[email protected] 27 Division, mirpur-12, pallbi.

direct flotation of iron ore slimes

Iron ore slimes flotation ScienceDirect

Oct 01, 2010The cleaning flotation stage brought the silica grade in the concentrate down to 1% (within the direct reduction specification). Oliveira (2006) investigated the concentration of the underflow of a slimes thickener via a combination of WHIMS and reverse flotation. Flotation was impaired by slimes coating caused by kaolinite particles.

get price
Cited by: 55

Iron ore slimes flotation ScienceDirect

This investigation addressed the processing of ultrafine tailings (slimes) from an iron ore concentrator via reverse cationic flotation to produce pellet feed fines, despite the traditional view that ultrafine particles do not float.

get price
Cited by: 55

Processing of high alumina iron ore slimes using

Feb 01, 2012Iron ore flotation is generally concerned with the separation of the iron oxide minerals from those containing silica. For these ores the flotation method employed may be that which recovers iron minerals in the froth (direct flotation), or alternatively, that by which the siliceous gangue is contained in the froth product (reverse flotation).

get price
Cited by: 58

Improving recovery of iron using column flotation of iron

In general, the industrial flowsheets for the beneficiation of itabirite iron ores from the Quadrilátero Ferrífero (Minas Gerais state) in Brazil invo

get price
Author: Elves Matiolo, Hudson Jean Bianquini Couto, Neymayer Lima, Klaydison Silva, Amanda Soares de Freitas

(PDF) The Characteristics of Iron Ore Slimes and Their

Jul 30, 2020The flotation has been successfully applied to process the iron ore for the particle size (Ps) from 10 µm up to 150 µm. The presence of the slimes

get price

Processing of high alumina iron ore slimes using

High alumina iron ore slimes from Joda, India are processed using classification with hydrocyclone and flotation. Slimes are characterized using QEMSCAN, SEM and XRD. The effect of hydrocyclone design variables on grade and recovery is investigated. Flotation of hydrocyclone underflow using amines and fatty acid as collector is studied.

get price

(PDF) Effect of Slimes on Iron Ores Flotation

The presence of slimes is, in general, harmful to the flotation of iron ores, affecting the selectivity and the quality of the concentrates, besides

get price

The Characteristics of Iron Ore Slimes and Their Influence

The flotation has been successfully applied to process the iron ore for the particle size (Ps) from 10 µm up to 150 µm. The presence of the slimes (Ps < 10 µm) is harmful on the reverse flotation of quartz, so they are usually prior removed by hydrocyclones.

get price

Magnetic seeding depression in flotation of hematite ore

As mentioned above, reverse flotation of iron ore slimes consumes too much caustic starch due to large amount of fine minerals, and new methods should be introduced to strengthen the adsorption of starch onto iron mineral particles and reduce the dosage of starch. Song (1992) reported ‘magnetic

get price

Froth Flotation of Iron Ores Publications

The history of iron ore flotation started with direct flotation of iron oxides using anionic collectors such as petroleum sulphonate, fatty acids and hydroxamates.

get price

iron ore reverse flotation

Froth Flotation of Iron Ores sapub. 02/01/2012 Although the reverse cationic flotation route has become the most popular flotation route in iron ore industry, the direct flotation of iron oxides still appears desirable for some low grade iron ores that contain a vast amount of quartz.

get price

(PDF) Effect of Slimes on Iron Ores Flotation

The flotation has been successfully applied to process the iron ore for the particle size (Ps) from 10 µm up to 150 µm. The presence of the slimes (Ps < 10 µm) is harmful on the reverse

get price

Reverse flotation studies on an Indian low grade iron ore

The present investigation deals with the recovery of iron values from the screw classifier overflow slimes from an iron ore washing plant by means of reverse cationic flotation as an alternate to direct anionic flotation. Selectivity index, an

get price

Iron ore slimes flotation Request PDF

This investigation addressed the processing of ultrafine tailings (slimes) from an iron ore concentrator via reverse cationic flotation to produce pellet feed fines, despite the

get price

Reverse flotation studies on an Indian low grade iron ore

CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The present investigation deals with the recovery of iron values from the screw classifier overflow slimes from an iron ore washing plant by means of reverse cationic flotation as an alternate to direct anionic flotation. Selectivity index, an indicator of separation efficiency, was chosen as the response

get price

Environmental Problems With Iron Ore Flotation

Flotation Reagents Mineral ProcessingMetallurgy. Consequently, aside from a few fundamental principles regarding flotation and the use of reagents, it is generally agreed each ore must be considered a problem for the metallurgist to solve before any attempt is made to go ahead with the selection and design of a flotation plant.

get price

Reverse flotation studies on an Indian low grade iron ore

Froth flotation is an important process to recover iron values from slimes, ore fines to meet the rapidly growing demand of quality iron ore concentrate for

get price

Effect of Slimes on Iron Ores Flotation sapub

Jan 02, 2012The presence of slimes is, in general, harmful to the flotation of iron ores, affecting the selectivity and the quality of the concentrates, besides causing an increase in reagents consumption. This work describes the behavior of different iron ore types from the Iron Quadrangle, Brazil, with respect to desliming in hydrocyclones and flotation, including a study

get price

(PDF) Role of Surfactants in Mineral Processing: An Overview

Flotation studies of quartz at natural pH indicate ∼100% quartz recovery at a TOMAS concentration of 8 * 10−5 M. Flotation of the natural occurring BHQ iron ore

get price

Froth Flotation of Iron Ores

Jan 02, 2012With the depleting reserves of high-grade iron ore in the world, froth flotation has become increasingly important to process intermediate- and low-grade iron ore in an attempt to meet the rapidly growing demand on the international market. In over half a century’s practice in the iron ore industry, froth flotation has been established as an efficient method to remove impurities from iron ore.

get price

Flotation efficiency of different iron ore size classes

1. The flotation efficiencies of the individual size classes of iron ores are determined by the technological procedures employed. Under all the investigated conditions and for ores from different deposits maximum efficiency is observed for the −50+20 μ classes. 2. The use of petroleum products under direct flotation conditions greatly increases the beneficiation

get price

Utilization of Iron Ore Slimes: A Future Prospective

During the washing and processing of iron ores, slimes less than 0.15 mm are generated and discarded into the tailing pond. These slimes need processing as they cannot be used directly in blast furnaces. In the present investigation, a typical iron ore slime sample containing 59.22% Fe, 4.76% SiO 2, and 4.57% Al 2 O 3 was taken. The desliming

get price

The Characteristics of Iron Ore Slimes and Their Influence

The flotation has been successfully applied to process the iron ore for the particle size (Ps) from 10 µm up to 150 µm. The presence of the slimes (Ps < 10 µm) is harmful on the reverse flotation of quartz, so they are usually prior removed by hydrocyclones. The main effects of the presence of slimes on the flotation are related to the increase on reagents consumption, the froth

get price

RECOVERING IRON VALUES FROM IRON ORE SLIMES USING

Size wise chemical analysis of iron ore slime from Joda, India is presented in Table 1. From the Table 1, D50 of the slime is around 25-20 microns, which is very fine. Around 50% of the slimes are present in <25 Micron fractions having 58.28 % Fe and 4.76% SiO 2 and 3.43% Al2O3. Table 1: Size wise chemical analysis of Joda iron ore slimes

get price

Reverse flotation studies on an Indian low grade iron ore

The present investigation deals with the recovery of iron values from the screw classifier overflow slimes from an iron ore washing plant by means of reverse cationic flotation as an alternate to direct anionic flotation. Selectivity index, an

get price

Reverse flotation studies on an Indian low grade iron ore

CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The present investigation deals with the recovery of iron values from the screw classifier overflow slimes from an iron ore washing plant by means of reverse cationic flotation as an alternate to direct anionic flotation. Selectivity index, an indicator of separation efficiency, was chosen as the response

get price

Reverse flotation studies on an Indian low grade iron ore

The present investigation deals with the recovery of iron values from the screw classifier overflow slimes from an iron ore washing plant by means of reverse cationic flotation as an alternate to direct anionic flotation. Selectivity index, an indicator of separation efficiency, was chosen as the response parameter for optimizing the quantity

get price

Reverse flotation studies on iron ore slime by the

Objective of this study is to investigate the synergistic effect of dodecylamine kerosene as a collector in the reverse cationic flotation of iron ore slime. The hematite slime used in the investigation contains 56.32% Fe, 5.3% SiO 2, and 5.79% Al 2 O 3. Iron recovery could be enhanced to 64.58% by the mixed dodecylamine-kerosene collector at

get price

Effectiveness of sodium silicate as gangue depressants in

Abstract. The recovery of iron from the screw classifier overflow slimes by direct flotation was studied. The relative effectiveness of sodium silicates with different silica-to-soda mole ratios as depressants for silica and silicate bearing minerals was investigated.

get price

The Characteristics of Iron Ore Slimes and Their Influence

The Characteristics of Iron Ore Slimes and Their Influence on The Flotation Process Neymayer Pereira Lima 1, The tests of direct flotation were carried out using a pulp with 10% of solids (w/w), sodium silicate as depressant, MIBC as the by-pass on the reverse flotation of quartz for samples with different mineralogical compositions [6].

get price

The Characteristics of Iron Ore Slimes and Their Influence

The flotation has been successfully applied to process the iron ore for the particle size (Ps) from 10 µm up to 150 µm. The presence of the slimes (Ps < 10 µm) is harmful on the reverse flotation of quartz, so they are usually prior removed by hydrocyclones. The main effects of the presence of slimes on the flotation are related to the increase on reagents consumption, the froth

get price

Utilization of Iron Ore Slimes: A Future Prospective

During the washing and processing of iron ores, slimes less than 0.15 mm are generated and discarded into the tailing pond. These slimes need processing as they cannot be used directly in blast furnaces. In the present investigation, a typical iron ore slime sample containing 59.22% Fe, 4.76% SiO 2, and 4.57% Al 2 O 3 was taken. The desliming

get price

RECOVERING IRON VALUES FROM IRON ORE SLIMES USING

Size wise chemical analysis of iron ore slime from Joda, India is presented in Table 1. From the Table 1, D50 of the slime is around 25-20 microns, which is very fine. Around 50% of the slimes are present in <25 Micron fractions having 58.28 % Fe and 4.76% SiO 2 and 3.43% Al2O3. Table 1: Size wise chemical analysis of Joda iron ore slimes

get price

Flotation efficiency of different iron ore size classes

1. The flotation efficiencies of the individual size classes of iron ores are determined by the technological procedures employed. Under all the investigated conditions and for ores from different deposits maximum efficiency is observed for the −50+20 μ classes. 2. The use of petroleum products under direct flotation conditions greatly increases the beneficiation

get price

Upgrading Sishen Iron Ore Slimes by Reverse Cationic Flotation

Batch flotation tests were conducted on a haematite-bearing Sishen iron ore slimes sample from South Africa using reverse cationic flotation. The effect of grinding on flotation performance, the flotation response of various key impurities in the sample, and the feasibility of increasing metal recovery by refloating tailings in a scavenger flotation step were investigated.

get price

Recovery of Iron Ore Tailings byColumn Flotation

The exploration of iron ore in small mining companies results in a large amount of unrecovered fine material, representing 35% of the run of mine. Millions of tons of useful minerals are discarded every year into tailings, incurring operation costs, raising production losses and environmental impact. In addition to the disposal of 300 t/h of this material, millions of tons are

get price

FLOTINOR® 5530 clariant

Apr 27, 2020Iron ore concentration processes requires the step of desliming in order to remove ultrafine particles that damages conventional flotation performance. However, at this fraction there are still high contents of valuable iron minerals that, in most of the processes, are sent to the tailings dam as waste material.FLOTINOR® 5530 is a collector developed for iron ore slimes flotation.

get price

Fine particle processing of iron ore slimes from Orissa, India

Fine particle processing of iron ore slimes from Orissa, India unsuitable for direct use in the blast furnace [1-3] and need washing prior to industrial use. Alternatively, the iron ore either inverse cationic column flotation or HGMS. Bonai Iron ore range of Orissa is the largest (34%) Indian iron ore resource and producer [1]

get price
Ready to get started?

Get in touch