patent silica iron flotation

Beneficiation of iron ore - United States Steel Corporation

May 06, 2016· Besides, the waste generated once the iron extracted is pretty much only sand (silica), which can be used in the construction of houses, schools, health facilities, and others. Therefore, this ...

flotation process of silica - BINQ Mining

Patent Silica Iron Flotation. Patent US6098810 Flotation process for separating silica from A separation process is provided for treating a feed material comprising silica feldspar and metal impurities including at least one of mica iron impurities or 187More detailed. Send Email: [email protected] Submit Message Free Quotation

Silica flotation collectors derived from isononyl alcohol ...

Dec 28, 2015· The first patent on pelletizing was granted to AG Andersson of Sweden in 1912 (Patent number 35124) and in 1913 to CA Brackelsberg in Germany. ... 325 mesh for liberation, the concentrate containing about 65 % iron and 8 % silica. ... but the iron mineral is recoverable by flotation and gravity methods, rather than by magnetic concentration. ...

(PDF) Reagents used in the flotation of phosphate ores: A ...

After preparation, the sample (90%, < 210 μm and 40% < 43 μm) with reactive silica and available alumina contents of 5.9 and 47.5%, respectively, was ground with water in a bar mill up to 210 min.

Patents Assigned to MagGlobal, LLC - Justia Patents Search

Jan 02, 2012· With the depleting reserves of high-grade iron ore in the world, froth flotation has become increasingly important to process intermediate- and low-grade 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.

Investigation of Adsorption Mechanism of Reagents ...

iron silica flotation Prior art date 1944-04-10 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 Application number US530370A Inventor Herkenhoff Earl Conrad

Role of silica and alumina content in the flotation of ...

Claim cation Date 27.06.91 F AMERICA 1. A froth flotation process for the separation of silica or siliceous ganguie from mineral values wherein the silica or siliceous gangue and mineral values In particulate form in an aqueous slurry are subjected to froth flotation in the presence of an amine collector and an alkanol amine corresponding to the formula NH(3x) wherein x is from 1 to 3 and R is ...

Influence of sodium silicate modulus on iron ore flotation ...

US2419945A US567762A US56776244A US2419945A US 2419945 A US2419945 A US 2419945A US 567762 A US567762 A US 567762A US 56776244 A US56776244 A US 56776244A US 2419945 A US2419945 A US 2419945A Authority US United States Prior art keywords iron flotation silica lime pulp Prior art date 1944-12-11 Legal status (The legal …

Patent Silica Iron Flotation - szkoleniabhpleczyca.pl

iron oxide on the silica grain surface than using of oxalic acid. Chemical leaching of the final sand concentrate, assaying 0.0059% Fe 2 O 3, was conducted using the "D12" flotation

Froth flotation - SlideShare

Role of water structure-making/breaking ions in the cationic flotation of kaolinite: Implications for iron ore processing. International Journal of Mining …

Froth flotation - Wikipedia

Silica Separation From Iron Ore Anhaengerverleih. Silica and iron recovery from a residue of iron ore flotation.A study of silica and iron recovery from the iron ore concentration tailing is.After magnetic separation, the sio2 grade increased from 67.0 to 95.0,.Get quote eco-efficient and cost-effective process design for magnetite iron ore.

Capryl alcohol frother in iron ore flotation process ...

silica sand grinding mill silica sand ball mill silica . Silica sand also known as silica or quartz sand Silica sand is refractory particles with quartz as the main mineral component and particle size of 0 020mm 350mm It is divided into artificial silica sand and washed sand and scrub sand according to different mining and processing methods Natural silica sand such as selected flotation …

Froth flotation of silica or siliceous gangue by ... - Patents

Nov 24, 2012· Patent US6098810 – Flotation process for separating silica from … A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or … »More detailed

Froth flotation - Wikipedia

The Jameson Cell can be used for the reverse flotation of silica from iron ore, where flotation columns have traditionally been used. Phosphate flotation. Phosphate processing operations that use flotation as the principal mechanism to concentrate the phosphate-bearing minerals usually discard particles smaller than 20 μm in diameter.

24 questions with answers in SILICA SAND | Science topic

This invention relates to the use of a primary-branched aliphatic ether monoamine, 3-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. Such collectors are employed in the separation of silica from iron ore, phosphate, and other …

Patents Examined by Robert Halper - Justia Patents Search

Slime flotation Ethomeen HT/40 Slime flotation collector Phospholan PE 65 Slime flotation collector Halite flotation Armoflote 619 Suitable for reverse flotation of carnallite Iron Ore (magnetite, hematite, itabirite) Silica flotation Armoflote 930 New chemistry for silicate removal from iron ores, readily biodegradable and superior ecotoxicity ...

Froth Flotation of Iron Ores

Claim cation Date 27.06.91 F AMERICA 1. A froth flotation process for the separation of silica or siliceous ganguie from mineral values wherein the silica or siliceous gangue and mineral values In particulate form in an aqueous slurry are subjected to froth flotation in the presence of an amine collector and an alkanol amine corresponding to the formula NH(3x) wherein x is from 1 to 3 and R is ...

mining design for silica iron ore - hotel-obrigheim.de

The magnetic concentrate, usually containing from 10% to 30% silica, is passed then to the flotation process, treated with an appropriate flotation agent in a conventional manner to create an iron concentrate in the froth, and the liberated iron particles separated as concentrate are used as the product while the tailings i.e. the unliberated ...

(PDF) High Quality Fused Silica from Egyptian Silica Sand ...

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

The removal of alumina and silica from iron rejects slime ...

After preparation, the sample (90%, < 210 μm and 40% < 43 μm) with reactive silica and available alumina contents of 5.9 and 47.5%, respectively, was ground with water in a bar mill up to 210 min.

Froth Flotation of Iron Ores

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 ...

Beneficiation of iron ore by flotation — Review of ...

Jan 01, 2011· The iron ore slimes were in situ sieved and analysed with 94.4% present as < 25 microns particles. The sub-25 micron fraction contained 58.8% Fe, 5.74% SiO 2, 6.65% Al 2 O 3 and 0.15% P. The bulk mineralogical analysis of iron ore rejects slime is shown in Table 1 which contained about 13% silica and alumina gangue minerals. It was used as ...

Froth flotation - Wikipedia

Aug 03, 2020· After scrubbing,the sand is processed through magnetic separation and floatation to achieve a product containing more than 95% pure silica containing less alumina and iron. View 3 Recommendations

(PDF) Reduction of Reactive Silica from Bauxite

Mar 10, 2016· Iron ores can be concentrated either by direct anionic flotation of iron oxides or reverse cationic flotation of silica. In direct flotation, oleic acid …

US2419945A - Froth flotation of silica from iron ore ...

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 pilot-plant scale, started towards 1931 (Crabtree and Vincent, 1962).

Brazilian company patents innovative dry iron ore ...

Silica Separation From Iron Ore CHN MINING. 2020427&ensp·&enspSilica Separation From Iron Ore Anhaengerverleih. Silica and iron recovery from a residue of iron ore flotation.A study of silica and iron recovery from the iron ore concentration tailing is.After magnetic separation, the sio2 grade increased from 67.0 to 95.0,.Get quote ecoefficient and costeffective process …

Modified hydroxamate collectors for kaolin flotation ...

Nov 07, 2014· These tend to be soluble polymers (such as starch) that selectively coat mineral surfaces and prevent collector from attaching. An example of this is in the "reverse flotation" of silica from iron ore, where the silica tailings are floated using a cationic collector at a pH of 8.5 - 11, leaving behind the iron oxide minerals.

FLOTATION OF SILICA - AKZONA INC,US

Froth flotation is a physico-chemical separation process. Separation is principally based on differences in surface hydrophobicity. However, particle size and density have a significant impact. Initial flotation patent and application was developed for graphite by the Bessel brothers (1877). Similar to graphite, coal is naturally hydrophobic.

US Patent for Upgrading the nickel content from low grade ...

Jul 01, 2018· Iron ore flotation started with direct flotation of iron oxides using selected anionic collectors such as petroleum sulphonates, fatty acids and hydroxamates. Direct flotation route was incorporated in the industries in the 1950s in Humboldt Mine, USA (1954), Republic mines USA (1956), Groveland mine USA and Anshan Iron and Steel corporation ...

(PDF) Reduction of Reactive Silica from Bauxite

What is claimed: 1. In a froth flotation process for separating silica from iron ore, which comprises frothing said ore in an aqueous medium in the presence of a cationic silica collector selected from ether amines of the formula: R--O--CH 2--CH 2--CH 2--NH 2. wherein R--O-- is derived from a mixture of normal alcohols, consisting predominantly of C 8 and C 10 carbon …

The Challenge to Scavenge IRON from Tailings Produced By ...

iron ore reverse flotation. Reverse Flotation with Flotigam 2835-2 reduces silica. Using Clariant's Ether Diamine collector, reverse flotation helps customers to obtain financing for development of a low-grade iron ore mine in Australia's.

Iron Ore Agglomeration Processes and their Historical ...

Tailings recovery has been a constant challenge for most engineers. Along more than five years, GAUSTEC joined major players in the mining Industry to scavenge Iron from tailings produced by flotation making use of WHIMS (Wet High Intensity Magnetic Separation). In the early 1980s, in USA, the US 4,192,738 patent was granted with promising results.

Patent Silica Iron Flotation - szkoleniabhpleczyca.pl

Nov 02, 2016· Justia - Patents - Patents and Patent Application Resources. Abstract: Cationic reverse flotation methods, systems, and processes for producing a marketable iron oxide concentrate from an iron oxide mineral slurry ("treatment slurry"), wherein the iron oxide content of the concentrate is greater than the iron oxide content of the treatment slurry, include introducing the treatment slurry ...

Jameson cell - Wikipedia

Silica Separation From Iron Ore Anhaengerverleih. Silica and iron recovery from a residue of iron ore flotation.A study of silica and iron recovery from the iron ore concentration tailing is.After magnetic separation, the sio2 grade increased from 67.0 to 95.0,.Get quote eco-efficient and cost-effective process design for magnetite iron ore.

Froth flotation of silica or siliceous gangue by ... - Patents

Nov 01, 2020· The first industrial application of flotation columns in this country was silica flotation to concentrate iron ore at Samarco Mineração in the early 90′s and soon a great expansion of the application of this technology was observed in the iron ore flotation …

Developments in the physiochemical separation of iron ore ...

Claim cation Date 27.06.91 F AMERICA 1. A froth flotation process for the separation of silica or siliceous ganguie from mineral values wherein the silica or siliceous gangue and mineral values In particulate form in an aqueous slurry are subjected to froth flotation in the presence of an amine collector and an alkanol amine corresponding to the formula NH(3x) wherein x is from 1 …

EP2998411B1 - Method for processing refuse of flotation ...

Abstract: Disclosed is an improved froth flotation process wherein preselected solid particles are selectively separated under froth flotation conditions as a froth phase from remaining solid feed particles as an aqueous phase in the presence of a collector amine. Such improvement comprises conducting said froth flotation in the presence of an effective proportion of an amine oxide promoter.

Froth flotation of silica or siliceous gangue by ... - Patents

The results of flotation tests showed that sodium silicate performed better as depressant of iron oxide, but had little effect on silica flotation in the apatite- iron oxide- silica flotation system.

Silica Separation From Iron Ore - Libra-NH

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 0.1 to 2 pounds per ton of said ore of a water dispersible, liquid aliphatic ether amine having the general formula: R--O--(R 1--O) z--CH 2--CH 2--CH 2--NH 2. where R-- is an aliphatic methyl branched radical having 9 carbon atoms, R 1 ...

AMIT 145: Lesson 5 Froth Flotation – Mining Mill Operator ...

Minerals Separation's initial flotation patents ended 1923, and new ones for chemical processes gave it a significant position into the 1930s.get price Separation Of Sand And Goethite By Flotation Mechanism of separating muscovite and quartz by Sep 6, 2014 Flotation experiments were performed to investigate the separation of muscovite and ...