patent silica iron flotation

Froth flotationKnow More

Nov 07 2014 0183 32 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 85 - 11 leaving behind the iron oxide minerals...

Iron Ore Flotation ReverseKnow More

Effect of particles size range on iron ore flotation - SciELO In the iron ore industry reverse quartz flotation has been successfully employed for particle sizes below ISOfim after the desliming process...

Influence of sodium silicate modulus on iron ore flotationKnow More

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...

Exploiting the dual functions of polymer depressants inKnow More

Sep 01 2006 0183 32 Fig 1 shows the settling behavior of iron oxide in the presence of three different flotation modifiers As can be seen after adding 50 mg/L sodium metaphosphate to a 250 mL suspension containing 5 g fine iron oxide the amount of iron oxide settled to the bottom 50 mL in 2 min was slightly above 20 in the entire pH range tested from 2 to 12...

US4725351AKnow More

A new froth flotation collecting agent and an improved flotation process for beneficiating silica-containing ores particularly phosphate ores are provided In the process silica particles are selectively separated by froth flotation as a froth phase from mineral particles particularly phosphate particles remaining in an aqueous concentrate phase in the presence of a silica-activating...

US2423022AKnow More

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...

Silica flotation collectors derived from isononyl alcoholKnow More

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 01 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...

Japan 2000t/d Silica Sand quartz sand Mineral ProcessingKnow More

In 1996 the silica quartz sand project controlled by TOMEN and participated by Takasaki Silica Sand from Japan finally chose Xinhai Mining EPC to provide the one-stop service for mining processing plant including engineer design and research manufacturing and procurement installation commissioning after several companies investigation and comparison...

Developments in the physiochemical separation of iron oreKnow More

Jan 01 2015 0183 32 113 Iron ore flotation 1131 Separation of silica from iron ore by flotation In the literature there are several excellent reviews of iron ore flotation with emphasis on the practice in North America by Trahar 1963 Iwasaki 1983 Houot 1983 Nummela and Iwasaki 1986 Uwadiale 1992 Iwasaki 1999 Nummela 1978 and Araujo et al 2005...

Froth flotation of silica or siliceous gangue byKnow More

Claim cation Date 270691 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...

iron ore reverse flotation machineryKnow More

Iron Ore Flotation And Reagents - brand of China mining iron ore flotation process equipment Essentially iron ore flotation System Integration Vintech s reagent used in reverse floatation of silica in iron ore is iron ore crusher machinery - Crusher Equipments...

Investigation of Adsorption Mechanism of ReagentsKnow More

Jul 01 2018 0183 32 Iron ore flotation started with direct flotation of iron oxides using selected anionic collectors such as petroleum sulphonates fatty acids and hydroxamat 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...

Jameson cellKnow More

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...

Good Price Laboratory Flotation Machine SuppliersKnow More

Alibaba offers 482 Good Price Laboratory Flotation Machine Suppliers and Good Price Laboratory Flotation Machine Manufacturers Distributors Factories Compani There are 307 OEM 287 ODM 112 Self Patent Find high quality Good Price Laboratory Flotation Machine Suppliers on Alibaba...

Mining Chemical SolutionsKnow More

Silica flotation Armoflote 930 New chemistry for silicate removal from iron ores readily biodegradable and Dephosphorization Atrac 1563 For hard process water and iron oxides containing phosphate patent infringement incurred in connection with the use of these...

Iron Ore Agglomeration Processes and their HistoricalKnow More

Dec 28 2015 0183 32 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...

Barry Wills Blog Flotation 19 Final ReportKnow More

Dec 09 2019 0183 32 By 1908 4 years after its patent flotation was working well for bulk flotation of zinc tailings but the search was then on for means of treating primary sulphides which led to the development of xanthate collectors selective activators and depressants and still the search goes on for more efficient and environmentally friendly reagents...

Froth flotation of silica or siliceous gangueKnow More

BACKGROUND OF THE INVENTION This invention is related to reverse flotation processes wherein silica or siliceous gangue is floated Flotation is a process of treating a mixture of finely divided mineral solids eg a pulverulent ore suspended in a liquid whereby a portion of the solids is separated from other finely divided mineral solids eg silica siliceous gangue clays and other...

Process for purifying silica sandKnow More

A process of purifying silica sand comprises grinding sandstone washing and desliming the ground sandstone to remove the major part of the clay-type binder attrition-scrubbing the deslimed sand particles to release further amounts of binder therefrom washing and desliming to remove said binder drying and heating the sand particles treating the hot sand with sulfuric acid to convert the...

24 questions with answers in SILICA SAND Science topicKnow More

Aug 03 2020 0183 32 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...

flotation process grinding mesh silica grinding differentKnow More

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 sand...

flotation reagents for removing iron from silica sandsKnow More

patent silica iron flotation It was shown that using sodium silicate at the selected levels of parameters including dosage of 800 g/t pulp pH of 10 sodium silicate modulus of and solution conditioning time of 6 min improved the selectivity of the apatite/iron oxides flotation significantly but the silica content of the iron concentrate was still higher than required...

Froth flotationKnow More

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

PDF Reduction of Reactive Silica from BauxiteKnow More

After preparation the sample 90 < 210 μm and 40 < 43 μm with reactive silica and available alumina contents of 59 and 475 respectively was ground with water in a bar mill up to 210 min...

US4422928AKnow More

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 valuable or...

US6098810AKnow More

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 refractory heavy minerals to form one or more products for use in making glass In the process the feed material is floated in the presence of a depressant to inhibit the flotation of feldspar and thereby form a concentrate...

METHODS DEVICES SYSTEMS AND PROCESSES FOR UPGRADING IRONKnow More

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a non-provisional application of US Provisional Patent Application No 62/250 455 filed Nov 3 2015 and entitled Methods Devices Systems and Processes for Upgrading Iron Oxide Concentrates Using Reverse Flotation of Silica at a Natural pH the disclosure of which is expressly incorporated in its entirety herein by this...

Capryl alcohol frother in iron ore flotation processKnow More

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 number alcohols the...

Patents Examined by Robert HalperKnow More

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...

Brazilian company patents innovative dry iron oreKnow More

May 06 2016 0183 32 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...