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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 .
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.com for the USA inventors and patents. Rate them and share your experience with other people.
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 .
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 ores 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 .
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
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 ores 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 .
Branched alkyl ether amines as iron ore flotation aids . Mar 16 1982What 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 .
Mar 01 2014 Abstract. Flotation is the most effective solution both technological ly and economically w hen upgrading. iron concentrates. Research regarding iron ore flotation
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 -
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 kaolinite-amines interactions. a
amines alone or mixed with ether amines alkyl phosphonium has drawn great attention in the field of reverse iron ore flotation 26. Concerning Brazilian iron ore recent studies 27 demonstrated the possibility of adopting a specific amidoamine type collector as a new collector reagent for reverse iron ore slimes flotation.
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 Yang 1988 YANG D. C. Reagent in iron ore processing. In SOMASUNDARAN P. MOUDGIL B. M. Reagents in mineral technology.
amines alone or mixed with ether amines alkyl phosphonium has drawn great attention in the field of reverse iron ore flotation 26. Concerning Brazilian iron ore recent studies 27 demonstrated the possibility of adopting a specific amidoamine type collector as a new collector reagent for reverse iron ore slimes flotation.
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 .
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 tailingsrejects with iron recoveries of around 60 9. The effect of amine type and pH on quartz flotation .
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 .
The depletion of high-grade iron ore necessitates an upgrade. Froth flotation has been proven to be one of the most suitable separation methods used to this end 3 5 6. The increased use of iron ore flotation has resulted in the reduction of gangue impurities 7. Flotation has thus produced iron super-concentrates with limited
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
Feb 01 2001 This peak is probably due to the proximity of the N-H amine groups and CO carbonyl groups in the amide portion of the condensates molecule and by different and better-defined bands in the 1800- to 1500-cm −1 range. The flotation performance of these amines was evaluated by means of the laboratory-scale flotation of an itabirite ore.
The flotation performance of these amines was evaluated by means of the laboratory-scale flotation of an itabirite ore. The etherainines proved to be the most effective collectors for this system.
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
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.
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 gt the superiority of alky ether amines over the
Jul 30 2020 iron ores 15–17. The most popular flotation route in the iron ore industry worldwide is reverse cationic flotation 11718. The cationic collectors have evolved from fatty amines in the early industrial applications to ether amines with relatively high
amines alone or mixed with ether amines alkyl phosphonium has drawn great attention in the field of reverse iron ore flotation 26. Concerning Brazilian iron ore recent studies 27 demonstrated the possibility of adopting a specific amidoamine type collector as a new collector reagent for reverse iron ore slimes flotation.
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.
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 .
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 .
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 .
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–OCH23–NH2 partially neutralized with acetic acid. The degree of neutralization is an important parameter.
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 .
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