Humic acid presents the best result regarding silica content and iron recovery on the final product. This compound derivate from organic matter has shown an excellent ability to depress iron oxides
In the present work the utilization of humic acid as a depressant for hematite in the iron ore flotation process was studied taking into consideration its physicochemical properties.
Mar 10, 2014· The direct flotation of iron oxides by anionic collectors such as petroleum sulphonates, fatty acids and hydroxamates was the first to be tested and commissioned in 1950 at several processing plants, including the Humboldt mine and the Republic mine in the USA, as well as the Anshan Iron & Steel Corporation in China (Iwasaki, 1983, Ma, 2012a).
Alternative substances have been investigated as hematite depressants. The research suggested that humic acid might be an alternative for starch in reverse flotation of iron ore [22]. Turrer
Aug 01, 2007· The flotation of the mixture of the two minerals (25% quartz and 75% hematite) was subsequently studied. The hematite recovery was higher than 90% in the depressed concentrate which assayed 86.0% Fe 2 O 3. The results suggest that humic acid could be used as an alternative for starch in the iron ore flotation process.
Froth flotation of iron ores is one of the most widely used methods to upgrade iron ore into highgrade concentrates. In recent years, reverse cationic flotation of iron ores has been specifically
Mar 10, 2014· The reverse flotation of mixtures containing single minerals with 75% hematite and 25% quartz from a deposit in Brazil used dodecylamine as a collector and humic acid as a depressant for the hematite supports, obtaining a concentrate containing 86% of hematite with a 90.7% recovery.
In the present work the utilization of humic acid as a depressant for hematite in the iron ore flotation process was studied taking into consideration its physicochemical properties.
Patent of invention for process of extracting and purifying humic substances from sanitary landfill leachate comprising four steps: 1 st physical-chemical step with the withdrawal of inert solids, 2 nd step of filtration, 3 rd step of purification of the humic substances with ionic exchange column followed by reverse osmosis and 4 th step of catalytic oxidation and ammonolysis by cathodic
2007-10-22 The present work has the objective of investigating the possibility of the reuse of residual amines resulting from the process of reverse flotation of iron ore. Bench-scale flotation tests were performed at pH 10.5 with starch as the depressant of iron oxides and the amines Flotigam EDA 3B and F 2835 as silica collectors.
Froth Flotation of Iron Ores. 02-01-2012· 4.1. Reverse Anionic Flotation Reverse cationic flotation is currently the most widely used flotation route in the world. However, the iron metal loss in the de-sliming stage, which is an essential step in reverse cationic flotation, and the high reagent cost of amine collector are the common problems
Different depressants were studied to replace starch in reverse cationic flotation of Fe ores. • Starch displays high adsorption amount on the Fe-Mg-silicates surface. • Humic acid and dextrin decrease silica content more efficiently than starch.
artical on iron ore reverse floation process artical on iron ore reverse floation process. Froth Flotation of Iron Ores sapub With the depleting reserves of hig. tel:0371-86549132 email: [email HJ series high efficiency jaw crusher is a new modern generation crusher designed by,based on jaw crusher and combined with the design
Dextrin [21,22], humic acid [15] and carboxymethylcellulose polymers [23] have been also researched as depressant in reverse flotation separation of molybdenite and talc with addition of frother
Feb 13, 2009· Competitive adsorption of humic acid and arsenate on nanoscale iron–manganese binary oxide-loaded zeolite in groundwater. Journal of Geochemical Exploration 2014, 144, 220-225. DOI: 10.1016/j.gexplo.2014.02.005. Fan-bao Hu, Yong-feng Lin, Ru Chen, Lei Ding, Wei Jiang.
reagents in iron ores flotation skoly-kurzy. Flotation Reagents Iron Ore « Binq Mining 2013-6-15 froth flotation of iron ores scientific academic publishing. 2 jan 2012 the reagents used in iron ore flotation, including starch, amines and fatty acids, and the mechanisms of their interactions with the minerals in »more detailed.
Keywords: اسید هیومیک; Iron ore; Reverse flotation; Fe-Mg-bearing silicates; Starch; Humic acid; دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2018 سفارش ترجمه
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