ether amine flotation iron ore

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 ...

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Colorimetric determination of ether amine greases utilized ...

Apr 08, 2009  高达10%返现  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.

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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 mixture of methyl branched aliphatic radicals having ...

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Improving recovery of iron using column flotation of iron ...

Nov 01, 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.

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Reagents in iron ores flotation - ScienceDirect

Feb 01, 2005  The role of reagents utilised in iron ores flotation is reviewed. Desliming and flotation stages should be performed at pH levels as low as possible to reduce the expenses with caustic soda. Ether amines are by far the mostly utilised class of collector. The degree of neutralisation of the ether amine is an important process parameter.

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(PDF) Reagents in iron ores flotation - ResearchGate

Ether amines are by far the mostly utilised class of collector. The degree of neutralisation of the ether amine is an important process parameter. ... Iron ore froth flotation has recently been ...

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ether amine flotation iron ore

USA 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 partiallyneutralized salts thereof as flotation reagents In further aspect, the use of mixtures of 3isooctoxypropyl monoamine ...

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Flotation of Iron Ore: A Brief Review - MDPI

Jul 30, 2020  iron ores [15–17]. The most popular flotation route in the iron ore industry worldwide is reverse cationic flotation [1,17,18]. The cationic collectors have evolved from fatty amines in the early industrial applications to ether amines with relatively high

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(PDF) The nature of hematite depression with corn starch ...

Apr 01, 2018  The function of corn starch and the significance of the order of addition of corn starch and mono ether amine in the reverse flotation of iron ore has been investigated.

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Froth Flotation of Iron Ores

Jan 02, 2012  With 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.

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Colorimetric determination of ether amine greases utilized ...

Apr 08, 2009  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.

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Recycling of éther-amines, used in iron ore flotation, by ...

The present work has the objective of investigating the possible recycling route for ether-amines, used for improving the efficiency of the process of iron ore’s reverse flotation. A physical-chemical separation method has been studied using TANFLOC as flocculant. The wastewater contains, mainly, amine and silica, and the objective of this ...

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ether amine flotation iron ore - krupskaskola.cz

Dec 18, 2020  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 mixture of methyl branched aliphatic

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Ether Amine Flotation Iron Ore

Ether Amine Flotation Iron Ore larenardiere-ardenne.be. Ether amine flotation iron ore. 2018-1-18 ether amine is obtained by introducing ether group into the hydrocarbon of an aliphatic amine so it is easier to disperse in the pulp due to the lower melting point and higher solubility ge609 is a kind of alkyl diamine ether and it has been...

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Ether Amine Flotation Iron Ore

Ether amine is obtained by introducing ether group into the hydrocarbon of an aliphatic amine, so it is easier to disperse in the pulp due to the lower melting point and higher solubility.Ge609 is a kind of alkyl diamine ether, and it has been successfully applied in the flotation practice of iron ore 20,21.Compared with the common.

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(PDF) The nature of hematite depression with corn starch ...

Apr 01, 2018  The function of corn starch and the significance of the order of addition of corn starch and mono ether amine in the reverse flotation of iron ore has been investigated.

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ether amine flotation iron ore

USA 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 partiallyneutralized salts thereof as flotation reagents In further aspect, the use of mixtures of 3isooctoxypropyl monoamine ...

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Iron Ore - Clariant

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

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Understanding the Environmental Impact of a Mine Dam ...

Reverse cationic flotation is the most widely used flotation . technique in the iron ore industry worldwide (Ma et al., 2011), Abbreviations ... flotation, such as ether amine and Na. The aim of this study was to assess the physical, chemical, and biological nature of the envi -

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Minerals Free Full-Text Collecting Agent–Mineral ...

Froth flotation has been widely used in upgrading iron ores. Iron ore flotation can be performed in two technical routes: direct flotation of iron oxides and reverse flotation of gangue minerals with depression of iron oxides. Nowadays, reverse flotation is the most commonly used route in iron ore flotation. This review is focused on the reverse flotation of iron ores, consisting of reverse ...

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Ether Amine Flotation Iron Ore - trinitytrade

Ether Amine Flotation Iron Ore . Reagents In Iron Ores Flotation Sciencedirect. Papini et al 2001 performed a large number of rougher only bench scale flotation experiments of an iron ore from the iron quadrangle brazil different cationic collectors were selected fatty monoamine fatty diamine ether monoamine ether diamine condensate and kerosene combined with amine.

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Polysaccharide Depressants for the Reverse Flotation of ...

Dec 12, 2015  Review of reverse flotation of iron ore is presented with a focus on the polysaccharide depressants used and the corresponding adsorption phenomena. Iron oxide minerals have a special affinity for starch and other polysaccharides, and this special property facilitates their depression during the reverse cationic flotation of silica with ether amines in Brazil (Peres and Correa, in Miner Eng 9 ...

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US Patent Application for AMINE AND DIAMINE COMPOUNDS

Apr 10, 2012  U.S. Pat. No. 4,422,928 (Exxon Research and Engineering, publication date 27 Dec. 1983) reveals a froth flotation process for separating silica from iron ore employing a liquid aliphatic ether amine of the formula R—O—(R 1 —O) z —CH 2 —CH 2 —CH 2 —NH 2 in which R is an aliphatic methyl branched radical having nine carbon atoms, R ...

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Froth Flotation of Iron Ores - Publications

the most popular flotation route in iron ore industry, the direct flotation of iron ox ides still appears desirable for some low grade iron ores that contain a vast amount of quartz. For example, at Republic Mine, Michigan, U.S.A., a hematite ore is upgraded from 36.5% Fe to 65.4% Fe with a Fe recovery of 82.5% using the direct flotation route.

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ether amine flotation iron ore - eiscafe-meffert.de

ether amine flotation iron ore_Colorimetric determination of ether amine greases 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 w

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Ether Amine Flotation Iron Ore

The flotation of most of the low grade iron ores containing quartz as the major impurities is being carried out by using several cationic collectors like DDA, coco amine, tallow amine, and ether.The most popular flotation route in iron ore industry, the direct flotation of iron ox ides still appears desirable for some low grade iron ores that ...

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Ether Amine Flotation Iron Ore

Ether Amine Flotation Iron Ore larenardiere-ardenne.be. Ether amine flotation iron ore. 2018-1-18 ether amine is obtained by introducing ether group into the hydrocarbon of an aliphatic amine so it is easier to disperse in the pulp due to the lower melting point and higher solubility ge609 is a kind of alkyl diamine ether and it has been...

Read More
Ether Amine Flotation Iron Ore

Ether amine is obtained by introducing ether group into the hydrocarbon of an aliphatic amine, so it is easier to disperse in the pulp due to the lower melting point and higher solubility.Ge609 is a kind of alkyl diamine ether, and it has been successfully applied in the flotation practice of iron ore 20,21.Compared with the common.

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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

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Froth Flotation of Iron Ores - Publications

the most popular flotation route in iron ore industry, the direct flotation of iron ox ides still appears desirable for some low grade iron ores that contain a vast amount of quartz. For example, at Republic Mine, Michigan, U.S.A., a hematite ore is upgraded from 36.5% Fe to 65.4% Fe with a Fe recovery of 82.5% using the direct flotation route.

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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

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Understanding the Environmental Impact of a Mine Dam ...

Reverse cationic flotation is the most widely used flotation . technique in the iron ore industry worldwide (Ma et al., 2011), Abbreviations ... flotation, such as ether amine and Na. The aim of this study was to assess the physical, chemical, and biological nature of the envi -

Read More
US Patent Application for AMINE AND DIAMINE COMPOUNDS

Apr 10, 2012  U.S. Pat. No. 4,422,928 (Exxon Research and Engineering, publication date 27 Dec. 1983) reveals a froth flotation process for separating silica from iron ore employing a liquid aliphatic ether amine of the formula R—O—(R 1 —O) z —CH 2 —CH 2 —CH 2 —NH 2 in which R is an aliphatic methyl branched radical having nine carbon atoms, R ...

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Understanding the Environmental Impact of a Mine Dam ...

Mar 01, 2019  After the flotation process of iron ore beneficiation, ether amines and Na are released to the dam tailings, where they are expected to remain (Araujo et al., 2010). However, when dam failure exposes the environment to these substances, the consequences are unknown.

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Laboratory Column flotation studies for reduction of ...

Similarly, iron ore flotation and application of column flotation for improvement of grade of the fines / slimes of different origin, mineral compositions and under different physico-chemical environments was studied by several investigators (Araujo et al., 2005; Eisele and ... but are said to be ether amine based. Their performance was

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Iron ore beneficiation technology, reverse flotation ...

Aug 31, 2020  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

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Scientific Academic Publishing: The article detailed ...

Jan 01, 2012  Such aggregation exposes the hydrophilic alumina planes towards the liquid phase (Figure 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.

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Branched alkyl ether amines as iron ore flotation aids is ...

Branched alkyl ether amines as iron ore flotation aids is a Patent located in USA, in Classifying, separating, and assorting solids, Fluid suspension, Liquid. Search LandOfFree for the USA inventors and patents. Rate them and share your experience with other people.

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