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ether amine flotation iron ore

Recycling of theramines used in iron ore flotation by

Recycling of theramines used in iron ore flotation by

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 mgL The recovery obtained was 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 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 1Flotation can be carried out under the condition of

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Understanding the Environmental Impact of a Mine Dam

Understanding the Environmental Impact of a Mine Dam

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 Understanding hematite depression with starch and the corresponding hydrophilic state involves consideration of adsorption with amine as well as flocculation of fine hematite 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 etherThe 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 The present invention describes the iron oxide reverse cationic flotation method using an ether diamine admixed with an ether monoamine in a ratio of ether diamine to ether monoamine of 51 to 991 preferably of 91 to 191 as a way of optimising the selectivity of the method in order to maximise the weight and metal recovery of iron while reducing the SiO 2 content in the concentrate

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Cationic flotation of iron ores amine characterization

Cationic flotation of iron ores amine characterization

Nov 01 2020 Primary etheramines 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 ROCH23NH2 partially neutralized with acetic acid The degree of neutralization is an important parameter Nov 01 2017 Shaw et al 1982 equally demonstrated that some branched alkyl ether amines were superior to linear chain alkyl ether amines in the flotation of some iron ores 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 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 01 to 2 pounds per ton of said ore of a water dispersible liquid aliphatic ether amine having the general formula ROR 1O zCH 2CH 2CH 2NH 2 where R is an aliphatic methyl branched radical having 9 carbon atoms R 1

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Role of Water StructureMakingBreaking Ions in the

Role of Water StructureMakingBreaking Ions in the

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 Aug 15 2018 An increase in the concentration of mono ether amine shows that higher concentrations of amine could be deleterious to the separation and should be avoided in the reverse flotation of iron ore It seems that starch acts both as a depressant and as a flocculant in the reverse flotation of iron ore and fine hematite particle aggregation due to The present work has the objective of investigating the possible recycling route for etheramines used for improving the efficiency of the process of iron ores reverse flotation A physicalchemical 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

Ether Amine Flotation Iron Ore

Ether amines are by far the mostly utilised class of collector The reverse flotation of the iron ore with etheramine collector is significantly impacted when the ironbearing silicates and flotation of iron ore emulsified with fatty acids Glembotsky 1963 It is reported that Pereira 2003 reported the possibility of a partial replacement of ether amine with nonpolar oils during reverse cationic flotation Emulsification of the oil phase in the amine solution was a key technology The best results were obtained with 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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The nature of hematite depression with corn starch in the

The nature of hematite depression with corn starch in the

Jan 01 2012 5 a Because ether diamine is a strong collector in iron ore flotation its capability to induce such aggregation is also stronger than ether monoamine7 which is responsible for the poor flotation in the presence of ether diamine 100 a b Figure 5 Schematic description of the kaoliniteamines interactions a Ether Amine Flotation Iron Ore 2018118 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 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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PDF Study on regulators of purifying magnesite ore by

PDF Study on regulators of purifying magnesite ore by

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 Mar 10 2014 The main routes of iron ore flotation were reviewed Reverse cationic flotation is the most used flotation method of iron ore beneficiation Ether amines and starches are usually used as collectors and depressant respectively Selective depressants Jan 02 2012 With the depleting reserves of highgrade iron ore in the world froth flotation has become increasingly important to process intermediate and lowgrade iron ore in an attempt to meet the rapidly growing demand on the international market In over half a centurys 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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Iron ore beneficiation technology reverse flotation

Iron ore beneficiation technology reverse flotation

Jul 30 2020 iron ores 1517 The most popular otation route in the iron ore industry worldwide is reverse cationic otation 11718 The cationic collectors have evolved from fatty amines in the early industrial applications to ether amines with relatively high Nov 25 1998 We claim 1 A process for enriching an iron mineral from a silicatecontaining iron ore by carrying out at a pH of 811 a froth flotation in the presence of a silicate collecting agent containing an ether amine and a depressing agent for the iron mineral wherein the collecting agent comprises a combination of at least one primary ether monoamine and at least one primary ether polyamine 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 physicochemical 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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