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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 ...
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.
Silica sand flotation is primarily used to remove the iron bearing heavy minerals and hydroxide coats removed after attrition scrubbing from quartz grains.
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.
Cationic flotation of silica from magnetic ironore concentrates This process is experimental and the keywords may be updated as the learning algorithm flotation separation technique processing the best device configuration and the most considerate turnkey services for the clients.
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 ...
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 ...
Apr 01, 1983· The flotation method most commonly applied is the one that is based on cationic flotation of silica and silicates (reverse flotation), and which is preceded, or not, by desliming or selective flocculation. INTRODUCTION Research on the flotation of iron ore, on either a bench or a pilotplant scale, started towards 1931 (Crabtree and Vincent, 1962).
HERKENHOFF 2,423,022 FROTH FLOTATION OF SILICA''FROM IKRON ORE BY ANIOIC COLLECTORS Filed April 10, 1944 "Mmy sL/MES ATTORNEY Patented June 24, 1947 l FROTH FLOTATION OF `SILICA FROM IRON ORE BY...
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.
Mar 01, 2009· The chemical analysis presented in Table 1 shows a very high content of SiO 2 in the sample (%). Quartz content is represented as insoluble silica (In SiO 2), and SiO 2 in kaolinite is the reactive silica (Re SiO 2).Available Alumina (AA) shows the alumina content in gibbsite, recoverable by the Bayer process: % in the head sample.
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.
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.
separation process to remove feldspar and iron from silica. Patent US Flotation process for separating silica from ... A separation process is provided for treating a feed material comprising silica, feldspar, and metal ... kaolin production dry process.
Metallurgical ContentThe Iron Ore Process FlowsheetCRUSHING AND GRINDINGHYDROCLASSIFICATION AND MAGNETIC FINISHINGCONDITIONING AND FLOTATIONSILICA FLOTATION REAGENTSTHICKENING AND FILTERINGADVANTAGES OF FLOTATION Beneficiation of Iron Ore and the treatment of magnetic iron taconites, stage grinding and wet magnetic separation is standard practice. This also applies to iron .
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 ...
About process of flotation of silicarelated information:reverse flotation with flotigam 2835 2 reduces silica content to improve magnetite quality and increase its . Production of High Grade Iron Ore Concentrates,THE PRODUCTION OF HIGH GRADE IRON ORE CONCENTRATES USING, CPT Inc has developed a flotation process for the production, silica ...
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 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...
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.
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.
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