Ether Amine Flotation Iron Ore

Ether amine greases are commonly used in the flotation of iron ore and after use are discarded in the tailings dams The aim of this work was to quantify a commercial ether amine using the bromocresol green dye in chloroform The statistical data obtained show that the method is characterized by satisfactory accuracy and precision with a detection limit below 1 mg/L The recovery obtained was

(PDF) Cationic flotation of iron ores: Amine

The study of quartz and South African iron ore flotation has also shown that, ether diamine 1 and the ether monoamine, both with chain lengths of between 8 and 10 carbon atoms, performed better...

US4319987A Branched alkyl ether amines as iron ore

The use of primary aliphatic ether amines as silica collectors in the concentration of minerals by the froth flotation process. More specifically, the use of mixtures of primary methyl branched aliphatic ether amines and the partially-neutralized salts thereof as flotation reagents. In further aspect, the use of mixtures of 3-isooctoxypropyl monoamine and 3-isodecoxypropyl monoamine and/or the partially

Differences in Etheramines Froth Properties and the

02/04/2021 Etheramines are quartz collectors and also play a role as frothers in cationic reverse flotation of iron ores. While the adsorption of this surfactant on quartz surface has been widely...

Reagents in iron ores flotation ScienceDirect

01/02/2005 The flotation performance of certain iron ore types is enhanced with the use of ether di-amines in combination with ether mono-amines. Amine is partially replaced by some kind of fuel oil in some concentrators. The emulsification of the fuel oil plays a relevant role in the process. The price of fuel oil is lower than that of amine and no significant environmental impact was detected. Amine plays also the role of frother in iron ore flotation. Considering that frothers cost less than amines

An overview of the beneficiation of iron ores via reverse

10/03/2014 The flotation of silicates from iron ores (or magnetic and gravity concentrates) is mainly conducted using primary ether monoamine or primary ether diamines with hydrocarbon chain lengths of 10–16 carbon atoms, or mixtures of two ether amines. Alkali-gelatinised corn starch is often used as a depressant for iron oxides. Several studies have confirmed that the partial replacement of starch with a type of CMC or

Improving recovery of iron using column flotation of iron

01/11/2020 Primary ether-amines and etherdiamines have been the dominant collectors for the flotation of iron ore since their introduction in the 6s (Houot, 1983, Araujo et al., 2005). Quartz is floated with ether amines (R– (OCH2)3–NH2) partially neutralized with acetic acid. The degree of neutralization is an important parameter.

An overview of the beneficiation of iron ores via reverse

Research regarding iron ore flotation began in 1931, demonstrating that reverse cationic flotation is a very efficient method for beneficiating oxidised iron ores. This method can also be applied to reduce the silica content in magnetite concentrates obtained using wet low-intensity magnetic separation.

Differences in Etheramines Froth Properties and the

02/04/2021 Abstract The present work relates to the design, synthesis and analysis of amine based reagents for enhanced iron ore-gangue separation using the adsorption (or interaction) energy and flotation

Colorimetric determination of ether amine greases utilized

Ether amine greases are commonly used in the flotation of iron ore, and after use are discarded in the tailings dams. The aim of this work was to quantify a commercial ether amine using the bromocresol green dye in chloroform. The statistical data obtained show that the method is characterized by satisfactory accuracy and precision with a detection limit below 1 mg/L.

Branched alkyl ether amines as iron ore flotation aids

Branched alkyl ether amines as iron ore flotation aids . Sep 9, 1980 Exxon Research & Engineering Co. The use of primary aliphatic ether amines as silica collectors in the concentration of minerals by the froth flotation process. More specifically, the use of mixtures of primary methyl branched aliphatic ether amines and the partially-neutralized salts thereof as flotation reagents. In

ether amine flotation iron ore krupskaskola.cz

Branched alkyl ether amines as iron ore flotation aids What is claimed is: 1. A froth flotation process for separating silica from iron ore, which comprises frothing said ore in an aqueous medium in the presence of 0.1 to 2 pounds per ton of said ore of a water dispersible, liquid mixture of aliphatic ether amines having the general formula: R--O--CH 2--CH 2--CH 2--NH 2. wherein R is a

Iron ore beneficiation technology, reverse flotation

Flotation of quartz gangue with amine collectors (ether amine is the best and fatty amine second). The advantages of the cationic collector reverse flotation method are: (one of the new red iron ore beneficiation technologies) (1)Flotation can be carried out under the condition of coarse grinding. As long as the monomer is separated by

Cationic flotation of iron ores: amine characterization

This peak is probably due to the proximity of the N-H amine groups and C=O carbonyl groups in the amide portion of the condensate’s molecule and by different and better-defined bands in the 1,800- to 1,500-cm−1 range. The flotation performance of these amines was evaluated by means of the laboratory-scale flotation of an itabirite ore. The

IJREAT International Journal of Research in Engineering

various ether amines for iron ore beneficiation was reviewed and recommended partial substitution of amine with non polar oils [1]. It was reported that iron ore concentrates assaying less than 1% silica could be obtained from iron ore tailings/rejects with iron recoveries of around 60% [9]. The effect of amine type and pH on quartz flotation was studied and found that the ether di-amine was

Iron Ore Clariant Ltd.

The FLOTIGAM® series includes ether amines, ether diamines and other cationic collectors for every iron ore flotation challenge. Our FLOTIGAM® collectors are able to produce iron ore concentrate with low silica content by froth flotation, resulting in high purity concentrate, which is needed for steel production. Clariant’s iron ore technical experts and flotation specialists can work with

University of Cape Town OpenUCT Home

Brazilian iron ore although it failed to perform in the flotation of the South African iron ore. A hematite concentrate with an iron grade of 65% and a quartz grade less of 1.5% was attained. At the same collector dosage of 125 g/t, the superiority of alky ether amines over the

Degradation of ether amines used in reverse cation

Degradation of ether amines used in reverse cation

Branched alkyl ether amines as iron ore flotation aids

Branched alkyl ether amines as iron ore flotation aids . Sep 9, 1980 Exxon Research & Engineering Co. The use of primary aliphatic ether amines as silica collectors in the concentration of minerals by the froth flotation process. More specifically, the use of mixtures of primary methyl branched aliphatic ether amines and the partially-neutralized salts thereof as flotation reagents. In

Iron ore beneficiation technology, reverse flotation

Flotation of quartz gangue with amine collectors (ether amine is the best and fatty amine second). The advantages of the cationic collector reverse flotation method are: (one of the new red iron ore beneficiation technologies) (1)Flotation can be carried out under the condition of coarse grinding. As long as the monomer is separated by

Cationic flotation of iron ores: amine characterization

This peak is probably due to the proximity of the N-H amine groups and C=O carbonyl groups in the amide portion of the condensate’s molecule and by different and better-defined bands in the 1,800- to 1,500-cm−1 range. The flotation performance of these amines was evaluated by means of the laboratory-scale flotation of an itabirite ore. The

Role of Water Structure-Making/Breaking Ions in the

5, a). Because ether diamine is a strong collector in iron ore flotation, its capability to induce such aggregation is also stronger than ether monoamine[7], which is responsible for the poor flotation in the presence of ether diamine. 100 (a) (b) Figure 5. Schematic description of the kaolinite-amines

IJREAT International Journal of Research in Engineering

various ether amines for iron ore beneficiation was reviewed and recommended partial substitution of amine with non polar oils [1]. It was reported that iron ore concentrates assaying less than 1% silica could be obtained from iron ore tailings/rejects with iron recoveries of around 60% [9]. The effect of amine type and pH on quartz flotation was studied and found that the ether di-amine was

Iron Ore Clariant Ltd.

The FLOTIGAM® series includes ether amines, ether diamines and other cationic collectors for every iron ore flotation challenge. Our FLOTIGAM® collectors are able to produce iron ore concentrate with low silica content by froth flotation, resulting in high purity concentrate, which is needed for steel production. Clariant’s iron ore technical experts and flotation specialists can work with

Common method of anti-flotation treatment of iron ore

24/09/2013 Using cationic collector reverse flotation method is adjusted with sodium carbonate slurry pH = 8-9, with starch, dextrin, tannin inhibition of iron minerals, with the amine flotation collector gangue of quartz, in which the ether amine preferably, fatty amines, followed by

University of Cape Town OpenUCT Home

Brazilian iron ore although it failed to perform in the flotation of the South African iron ore. A hematite concentrate with an iron grade of 65% and a quartz grade less of 1.5% was attained. At the same collector dosage of 125 g/t, the superiority of alky ether amines over the

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 stability

Degradation of ether amines used in reverse cation

Degradation of ether amines used in reverse cation