patent silica iron flotation
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patent silica iron flotation

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

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 status is an assumption and is not a legal conclusion.

US2423022A - Froth flotation of silica from iron ore by ...

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

US4422928A - Silica flotation collectors ... - Google Patents

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 ores.

US5124028A - Froth flotation of silica or ... - Google Patents

Silica and siliceous gangue are separated from desired mineral values, particularly iron and phosphate, by reverse froth flotation in the presence of amine collectors and effective amounts of alkanol amines such as diethanol amine.

US6098810A - 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 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 ...

Froth flotation of silica from iron ore by anionic ...

Froth flotation of silica from iron ore by anionic collectors . United States Patent 2423022 . Abstract: This invention relates to a pretreating process in the beneficiation of iron ores and constitutes a continuation in part of my copending application for U. S. Letters Patent, Serial No. 468,523, filed December 10, 1942, now Patent No ...

US6076682A - Process for froth flotation of silicate ...

The present invention relates to a process for enriching an iron mineral from a silicate-containing iron ore by carrying out, at a pH of 8-11, a froth flotation in the presence of a depressing agent for the iron mineral and a collecting agent containing a combination of an ether monoamine and an ether polyamine, which contain an aliphatic hydrocarbon group having 6-22 carbon atoms in a weight ...

Froth flotation of silica from iron ore by anionic ...

Froth flotation of silica from iron ore by anionic collectors . United States Patent 2423022 . Abstract: This invention relates to a pretreating process in the beneficiation of iron ores and constitutes a continuation in part of my copending application for U. S. Letters Patent, Serial No. 468,523, filed December 10, 1942, now Patent No ...

US3292780A - Process for improved flotation treatment of ...

flotation iron silica Prior art date 1964-05-04 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 US364861A Inventor Donald W Frommer Arthur F Colombo Original ...

US4529507A - Capryl alcohol frother in iron ore flotation ...

Capryl alcohol is employed as a frother in the froth flotation of silica from iron ore. Capryl alcohol is employed as a frother in the froth flotation of silica from iron ore. ... 1985-07-15 Priority claimed from CN 85105404 external-priority patent/CN85105404A/en 1985-07-16 Application granted granted Critical

EP0463823B1 - Froth flotation of silica or siliceous ...

European Patent Office Prior art keywords amine silica collector flotation alkanol Prior art date 1990-06-28 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 EP91305647A

FLOTATION OF SILICA - AKZONA INC,US

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 normal-alkyl 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 the ...

Capryl alcohol frother in iron ore flotation process ...

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 ...

US Patent Application for Use Of Polyols For Improving A ...

Jun 05, 2019 · The flotation tests were done in laboratory scale using a Denver Flotation Cell D12 apparatus at a temperature of about 25° C. according to the following procedure: A sample with 1.1 kilograms of the respective crude iron ore was charged to the flotation cell of 1.5 l volume and water was added in order to prepare a pulp of 50 wt.-% of solids content.

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

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).

Froth Flotation of Iron Ores

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.

Branched alkyl ether amines as iron ore flotation aids is ...

Patent. active. 043199879. ABSTRACT: The use of primary aliphatic ether amines as silica collectors in the concentration of minerals by the froth flotation process. More specifically, the use of mixtures of primary methyl branched aliphatic ether amines and the partially-neutralized salts thereof as flotation

Process for purifying silica sand - Materias Primas ...

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 ...

Silica depressant in froth flotation of ... - LandOfFree

75 2, 252 61, B03D 102. Patent. active. 047190094. ABSTRACT: Certain water dissipatable polyester materials containing ether groups and metal sulfonate groups are useful as depressants for siliceous gangue in the froth flotation separation of zinc sulfide concentrates from complex ores containing, minerals of other metals such as lead and iron, as well as various silicon compounds.

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

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).

US Patent for Depressants for mineral ore flotation Patent ...

Depressants comprising one or more types of polysaccharides comprising one or more types of pentosan units are provided. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a flotation process in the presence of one or more collecting agents and one or more of the depressants.

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

Froth flotation of silica or siliceous gangue - AU1991079390. AU01 AUSTRALIA CF Dow Case No. 38,666-F Commonwealth of Australia The Patents Act 1952 DECLARATION IN SUPPORT In support of the Convention Application made by: THE DOW CHEMICAL COMPANY 2030 Dow Center, Abbott Road Midland, Michigan 48640, U.S.A. for a patent for an invention entitled ...

Jianjun Liu Inventions, Patents and Patent Applications ...

Apr 30, 2021 · Publication date: May 27, 2021. Inventors: Jianjun Liu, Kevin O'Brien, Paul Wiatr, Daniel N.T. Hay. Functionalized silicones for froth flotation. Patent number: 11014097. Abstract: Improved sparge compositions for froth flotation separation, methods of

Patents Assigned to Jacobs Engineering Group - Justia ...

Apr 11, 2016 · Abstract: A process for recovering phosphate values from phosphate ore containing phosphates and silica in which scrubbed and screened ore is subjected to a flotation process which floats finer silica particles but not heavier silica particles, and which does not tend to float phosphates, and removing the floated material thereby forming a concentrate while discarding silica fines.

Kevin O'Brien Inventions, Patents and Patent Applications ...

Jan 18, 2021 · USPTO patent applications submitted by and patents granted to Kevin O'Brien ... particles. For example, the compositions and methods can be used in the separation of iron oxide beneficiary from iron ores comprising silica, silicates, and the like. ... Sparge compositions and functionalized silicones suitable for the froth flotation of iron ores ...

separation of silica from iron ore

Fine Grinding Iron Ore Silica Separation. ... effective separation of iron ore. 【Live Chat Support】 Patent US2423022. HERKENHOFF 2,423,022 FROTH FLOTATION OF SILICA'FROM IKRON ORE BY, when such methods are applied to low-grade iron or Ordinarily, separation of mineral.

Literature review on the use of natural products in the ...

Jul 01, 2017 · Flotation tests conducted in a 2 L flotation cell on a banded hematite quartzite ore containing 55.5% hematite and 42.5% silica using 32 g/t of dodecylamine and 400 g/t of soluble starch yielded an iron recovery of 89.6% at an iron grade of 63.8%.

1 Froth Flotation – Fundamental Principles

1 Froth Flotation – Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air

Froth flotation - Wikipedia

Froth flotation is a process for selectively separating of 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.

Quality Prediction in a Mining Process | Kaggle

Dec 06, 2017 · From column 9 until column 22, we can see process data (level and air flow inside the flotation columns, which also impact in ore quality. The last two columns are the final iron ore pulp quality measurement from the lab. Target is to predict the last column, which is the % of silica in the iron

185 F.2d 679 - law.resource.org

1. This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the rejection by the Primary Examiner of all the claims — three in number — embraced in appellant's application for patent relating to alleged improvements in the beneficiation of silicious iron-bearing minerals by cationic froth flotation processes.

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

AMIT 145: Lesson 5 Froth Flotation. 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).

Heavy Minerals Of Silica Sand - caesarmachinery

Flotation Of Silica From Heavy Minerals Crusher USA » patent silica iron flotation » heavy mineral extract froth flotation in silica sand » froth flotation of silicate minerals » froth flotation rare earth minerals. removing minerals from glass sand.

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