patent silica iron flotation
The flotation method most commonly applied is the one that is based on cationic flotation of silica and Flotation of iron ores. Patent 2 389 727 (11/27Get Price How calcite and silica can be depress in froth flotation
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The flotation method most commonly applied is the one that is based on cationic flotation of silica and Flotation of iron ores. Patent 2 389 727 (11/27Get Price How calcite and silica can be depress in froth flotation
The nickel content from low grade nickel lateritic iron ore is upgraded by a combined process of segregation and magnetic separation or flotation. Ground ore is thoroughly mixed with a small quantity of calcium carbonate, calcium sulfate and coke and is sprayed with a solution of sodium chloride to make appropriate pellets. These pellets are gradually heated under a neutral or a slightly ...
The principal separation in iron ore beneficiation, therefore, is between the iron minerals, hematite and/or magnetite, and silica, principally in the form of quartz. The use of flotation, either alone or in combination with magnetic separation, has been well established as an efficient method for rejecting silica from these iron ores.
Flotation response of iron ore depends on its impurities. • Silica rich ores float better compared to alumina rich ores. • Clay and gibbsite coat on hematite and hinder flotation. • SEM studies support less coating of quartz due to coarser size. • Silica in the form of jasper present in BHJ ore is less floatable.
patent silica iron flotation hrwervingenselectienl. Froth flotation of silica from iron ore Free Patents Online Under the conditions of the flotation trials, 105 pounds of lime per ton of 70 feed as used in test 4 was sufficient to yield a substantially saturated pulp, and gave good flotation of the silica and retardation of the iron oxid ...
May 30, 2016· A series of flotation tests on Chador Malu samples were carried out to evaluate the effect of different silicate–metal salts mixtures on the apatite–iron oxides–silica flotation system. Experiments were performed at 800 g/t sodium silicate with modulus of and at the pulp pH of 10, using different silicate–metal mixtures.
The ore is suitably prepared so that the bulk of the silica gangue may be floated away from the iron using a relatively cheap anionic reagent. lTailings from this flotation contain the bulk of the...
Get Price. iron ore beneficiation magnetic separation silica YouTube. Get Price; machine for separation of silica iron and sand. flotation separation of chromite from silica sand, saperator of iron from silica sand,ore crusher plant separation process to remove feldspar and iron from, Flotation reagents for removing iron from silica .
The Brazilian iron ore industry has led the world in adopting column flotation technology for reducing the silica content of iron pellets[5]. Several companies have installed, or are in the process of insta lling column cells into their process flowsheets. Samarco Mineracao, the first Brazilian producer to use column cells, installed
A bulk of silica sand was taken from KowliKosh silica sand mine to reduce its hematite content by reverse flotation. The raw sample consisted of % SiO 2 and % Fe 2 O 3 and traces of Al 2 O 3, CaO, MgO, Na 2 O, K 2 O, TiO 2.
Patent US Flotation process for separating silica The purpose of the following experiment was to study the effect of a standard acid iron flotation procedure Process for purifying silica sand US * Jun 28 flotation of silicasand vibrating sieve separator
In addition, a stabilizing flotation performance was registered by comparing the fed purity dispersions and concentrated purity dispersions for both iron and silica. The fed purity dispersions were considerably large, registering a standard deviation of % for iron and % for silica.
US Patent for Silica flotation collectors derived from This invention relates to the use of a primarybranched aliphatic ether monoamine nonyloxypropylmonoamine its ethoxylated or propoxylated derivatives and partial acid salts thereof as a major or minor constituent in the formulation of superior silica flotation collectors.
Jul 10, 1973· I claim 1. A froth flotation process for separating silica from iron ore which comprises froth flotation of said ore in an aqueous medium containing a mixture of water dispersable acid salts of normalalkyl primary amines having 5 to 12 successive chain lengths including both odd and even numbered carbon chains of 8 to 22 carbon atoms, the major proportion of the constituents being near .
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 century''s practice in the iron ore industry, froth flotation has been established as an efficient method to remove impurities from iron ore.
After preparation, the sample (90%, < 210 μm and 40% < 43 μm) with reactive silica and available alumina contents of and %, respectively, was ground with water in a bar mill up to 210 min.
the current state and use of iron ore flotation methods, as well ... tion commercial introduction in 1905 and patent in 1906 ... cationic flotation for silica removal in the earlier days. Papini ...
Patent Silica Iron Flotation. Jun 23 1992 froth flotation of silica or siliceous gangue united states patent a flotation process for the separation of silica or siliceous gangue from mineral values wherein the silica or siliceous gangue and mineral values in particulate from in an aqueous slurry are subjected to froth flotation in the ...
Separation of silica from bauxite via froth flotation ... 1/3/2009 It contained the gibbsite and the iron and titanium bearing minerals. The concentrate was further upgraded by magnetic separation, leading to % available alumina, with an alumina/insoluble silica mass ratio of at an overall available alumina recovery of % in the final concentrate (nonmagnetic product).
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 ...
silica pulp ore flotation iron Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired Lifetime .
This invention relates to the use of a primarybranched aliphatic ether monoamine, 3nonyloxypropylmonoamine, its ethoxylated or propoxylated derivatives and partial acid salts thereof, as a major or minor constituent in the formulation of superior silica flotation collectors. Such collectors are employed in the separation of silica from iron ore, phosphate, and other valuable ores.
Tolerance to silica and alumina in iron ore depends on the process and ore size. Lump +6mm particles can be fed directly into the blast furnace while fines (generally 6mm) need to be agglomerated ...
patent silica iron flotation US Patent for Silica flotation collectors derived from This invention relates to the use of a primarybranched aliphatic ether monoamine nonyloxypropylmonoamine its ethoxylated or propoxylated derivatives and partial acid salts thereof as a major or minor constituent in the formulation of superior silica flotation ...
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