ether amine flotation iron ore

RECYCLING OF PROCESS WATER CONTAINING AMINES IN
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The ether group introduction and the amines partial neutralization using acetic acid and hydrochloric acid cause the amine solubility increase The adsorption of etheramine acetate on to hematite and quartz surfaces at pH 105 happens by Present process of reverse iron ore flotation including the feasible process of amine recycling...

Investigation on Collector Optimisation in the Reverse
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The reverse iron ore flotation in Brazil mainly constituted by haematite and quartz uses ether amines as collector for silica minerals and caustic corn starch as depressor for haematite The process selectivity is highly impacted by the features of the etheramine such as...

IJREAT International Journal of Research in Engineering
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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...

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

Iron ore beneficiation technology reverse flotation
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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...

Reprocessing of Sangan iron ore tailings by flotation
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iron ore Hence the iron ore minerals with lower magnetic susceptibility or interlocked with gangue minerals have no opportunity for upgradation and proceed to the tailing dam Flotation is a powerful technique for upgradation of these materials and it is the focus of this research work A sample of 4309 Fe and 121 FeO was taken from the...

Recycling of éther
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text new page beta Portuguese pdf Article in xml format How to cite this article SciELO Analytics Curriculum ScienTI Automatic translation...

University of Cape Town
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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 15 was attained At the same collector dosage of 125 g/t the superiority of alky ether amines over the...

Optimization of Flotation pH for the Reverse Flotation of
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Jan 01 2016 0183 32 This article presents laboratory test work conducted on an African haematite ore to determine the influence of the flotation pulp pH on the final iron grade and recovery Results show that a combination of an isodecyl ether propylene amine/amino acetate and 1 3-propanediamine N- 3- C10-C16-alkyloxy propyl -derivatives collector is suitable...

Influence of Temperature Water Quality and Collector
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ether amine Table 2 The mechanisms which make amido amines to behave better than ether amines and other cationic surfactants in the seawater environment are the subject of current research at the University of Sao Paulo Table 2 Flotation performance of ether amine versus amido amine with water Piura-I-A Collector Final concentrate...

PDF Cationic flotation of iron ores Amine
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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...

Reagents in iron ores flotation
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Feb 01 2005 0183 32 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...

collectors for iron ore flotation
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collectors for iron ore flotation Feb cationic collectors primary fatty amines utilised in the pioneer usbm process are no longer employed in the flotation of iron ores they were modified with the insertion of the polar group och between the radical r and the polar head nh of the primary amine due to the presence of the covalent bond co characteristic of the organic function ether...

Understanding the Environmental Impact of a Mine Dam
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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...

The Characteristics of Iron Ore Slimes and Their Influence
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The flotation has been successfully applied to process the iron ore for the particle size Ps from 10 181 m up to 150 181 m The presence of the slimes Ps < 10 181 m is harmful on the reverse flotation of quartz so they are usually prior removed by hydrocyclon The main effects of the presence of slimes on the flotation are related to the increase on reagents consumption the froth stability...

Scientific Academic Publishing The article detailed
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Jan 01 2012 0183 32 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...

v116n12a4 Optimization of flotation pH for the reverse
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and ether amine blends as collectors with additional frothing characteristic Araujo et al 2005 Work by Turrer and Peres 2010 shows the possibility of using other depressants successfully as well The main mechanism of the reverse flotation of quartz from iron ore is based on the electrostatic theory of flotation This is due...

Froth Flotation of Iron Ores
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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 USA a hematite ore is upgraded from 365 Fe to 654 Fe with a Fe recovery of 825 using the direct flotation route...

Understanding the Environmental Impact of a Mine Dam
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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 -...

Method of producing iron ore concentrates by froth flotation
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Iron ore concentrates can be obtained by the flotation of iron ores providing mixtures containing at least one ether canine of formula I Rsup1 O-- Csubn Hsub2n suby --NH-- Csubm Hsub2m --NH subx H in which Rsup1 is a linear or branched chain aliphatic hydrocarbon moiety having 6 to 22 carbon atoms and 0 1 2 or 3 double bonds n and m independently of one another represent...

Flotation Reagents for Non
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A FOCUS ON CATIONIC CHEMISTRIES FOR REVERSE FLOTATION OF SILICATES Evonik produces an array of performance chemicals that serve the mining industry At the core of that technical know-how is the production of high-quality reagents for reverse flotation of non-sulfide or Our Tomamine® product line of ether amines is designed specifically for this type of mineral flotation...

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

Role of Water Structure
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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...

floatation of iron ore
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Starch Replacement In Amine Flotation Of Iron Ore Pearl starch a corn starch prepared with a minimum of alteration is a good selective depressant for iron oxide minerals from what is known of the complex chemistry of corn starch there is evidence that it consists of a mixture of saturated giant polymeric molecules both straight and branchchained the constituents consisting of glucose units...

Synergistic effect of a mixture of dodecylamine and
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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 non-polar oils during reverse cationic flotation Emulsification of the oil phase in the amine solution was a key technology The best results were obtained with...

US4319987A
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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...

Process for froth flotation of silicate
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We claim 1 A process for enriching an iron mineral from a silicate-containing iron ore by carrying out at a pH of 8-11 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...

PDF Reagents in iron ores flotation
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Brazil is among the world s largest iron ore producers The standard concentration method is reverse cationic flotation using amines and their derivatives such as quartz collector and corn as...

Simultaneous use of direct and reverse flotation in the
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The cationic reverse flotation of quartz is the most commonly used route quartz is floated with ether amines partially neutralized with acetic acid and the iron ore is depressed by unmodified starches The cationic reverse flotation of quartz is preferred for iron ores due to the high selectivity achieved and the fact that the iron-bearing minerals are in greater portion than the gangue...

NEW ETHERAMINE COLLECTOR FOR THE REVERSE
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present and discuss the flotation and frothing results achieved using the new etheramine based collector Lilaflot 821M developed for the reverse flotation of iron ore Lilaflot 821M has showed a high selectivity towards silica leading to the attainment of final concentrate with a high Fe content gt 68 low silica level...

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