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sodium sulfate flotation

US3917801A - Flotation of boric acid from sodium sulfate ...

Clean crystalline boric acid is isolated from a slurry, obtained by reaction between a borate ore and sulfuric acid, and seriously contaminated with clay slimes and sodium sulfate, by the steps of adding a crystal modifier to the slurry, stirring said slurry at a temperature from about 55* to about 100*C., cooling said slurry to a temperature near Glauber''s salt transition temperature, adding ...

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Flotation of celestite with the anionic collector sodium ...

Sep 01, 2000  The flotation response of celestite, as a function of pH at various concentrations of the anionic collector sodium dodecyl sulfate, is given in Fig. 2.Flotation increases with collector concentration and is complete at 10 −4 M dodecyl sulfate concentration within the pH range of 3–11 investigated in this study. These results show that long-chain anionic collector of the sulfate type

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Flotation of boric acid from sodium sulfate obtained ...

The Separation of Boric Acid from Anhydrous Sodium Sulfate by Flotation: Boric Acid Produced By Reacting A Boron Ore With Sulfuric Acid Kernite ore was employed in the tests. Kernite, which has the formula Na 2 B 4 O 7 .4H 2 O, is very difficult to dissolve in water and, therefore, cannot be refined as easily by solution-crystallization as ...

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Behavior and mechanism of sodium sulfite depression of ...

Sep 01, 2020  The most routinely used depressants for suppression of gangue minerals in rutile flotation are inorganic reagents such as sodium fluorosilicate, sodium hexametaphosphate, depressant aluminum sulfate, sodium silicate and acidified sodium silicate among others [, , , ].

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Flotation of sphalerite and pyrite in the presence of ...

Jun 01, 2001  The effect of sodium sulfite on pyrite flotation is more pronounced than on sphalerite flotation with flotation recoveries being reduced by half at a sodium sulfite concentration of 2×10 −4 mol dm −3. However, at higher sodium sulfite concentrations, pyrite recovery increases.

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US3917801A - Flotation of boric acid from sodium sulfate ...

Clean crystalline boric acid is isolated from a slurry, obtained by reaction between a borate ore and sulfuric acid, and seriously contaminated with clay slimes and sodium sulfate, by the steps of adding a crystal modifier to the slurry, stirring said slurry at a temperature from about 55* to about 100*C., cooling said slurry to a temperature near Glauber''s salt transition temperature, adding ...

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SODIUM SULPHATE: ITS SOURCES AND USES

Uses. In the form of salt cake sodium sulphate is used in making wood pulp by the sulphate process, plate glass, window glass, and bottles, water glass, sodium sulphide, and precipitated barium sul­ phate (blanc fixe). One of the early patents for ore flotation by the Delprat process was based on the use of acid and salt cake.

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SULFIDE FILMING AND FLOTATION OF CHRYSOCOLLA

the sodium sulfide to sodium sulfate with but little sulfid­ ... Excess sodium sulfide in the flotation" . e pulp had an injurious effect on the character of the froth, either greatly toughening it or eliminating it entirely. Rlekard and Ralston further stated that the poly­ ...

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Removal of sulfate ions by dissolved air flotation (DAF ...

Apr 10, 2016  After flotation, the efficiency was measured in terms of residual sulfate concentration in the treated water as a function of time and polymer flocculant concentration. 2.2.3. Study of micro- and nanobubble DAF of sulfate-bearing precipitates2.2.3.1. Synthetic solutions of sodium sulfate

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Behavior and mechanism of sodium sulfite depression of ...

Selective flotation of rutile from almandine was investigated using sodium sulfite as a regulator and an octadecyl amine polyoxyethylene ether (AC1815) mixed with Styryl phosphonic acid (SPA) as a composite collector. The investigation was conducted through a series of micro-flotation tests of single and artificially mixed minerals.

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Flotation of Silver Bearing Minerals from Sulfide Ores

Mar 19, 2018  Several tests were conducted in sodium sulfate solution in conjuntion with the usual sodium tetraborate electrolyte to improve understanding of flotation in conventional processing mills. Xanthate consumption also was measured using ultraviolet spectrophotometry to better understand the interaction between the collector and the mineral surface.

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The role of oxidizer in the flotation separation of ...

Sep 07, 2021  In this study, the inhibitory effect of a composite depressant consisting of sodium sulfite and sodium lignosulfonate mixed at a molar ratio of 5:1 on Cu–Pb flotation separation was analyzed.

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Potash Flotation Process - Mineral Processing Metallurgy

May 06, 2016  Potash Flotation. The conditioner and reagentized salt-brine slurry is floated in a “Sub-A” Flotation Machine. In the circuit shown, roughing is accomplished in a “Sub-A” Free Flow Flotation Machine with no intermediate weirs or feed pipes. This allows the coarse sodium chloride waste product to flow through the machine unmolested.

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Flotation Reagents - Mineral Processing Metallurgy

Jun 08, 2016  The most widely used sulphidizer is sodium sulphide, which is commonly used in the flotation of lead carbonate ores and also slightly tarnished sulphides such as pyrite and galena. In the sulphidization of ores containing precious metals careful control must be exercised as in some instances sodium sulphide has been known to have a depressing ...

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Microscopic mechanisms of inorganic salts affecting the ...

1 天前  sodium dodecyl sulfate. ... Foams are widely used industrially, in applications as diverse as petrochemicals[1], mineral flotation[2], food processing[3], and fire protection[4]. In the production of natural gas, foam drainage technology (in which aqueous foams play a vital role) has been successfully applied to the elimination of liquid ...

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Improving copper recovery from oxide sources in flotation ...

May 04, 2021  Improving copper recovery from oxide sources in flotation process using sodium dodecyl sulfate modified ZnO nanoparticles as new collector. Mehdi Eskandari 1,2, Zahra Fakhroueian 2, Mehdi Dastjerdi 1, Zahra Bahri 3 Mahsa Kaman 1 Chemical Papers volume 75, pages 4371–4379 (2021)Cite this article

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US3827557A - Method of copper sulfide ore flotation ...

A novel flotation promoter used in the concentration of copper bearing ores for the efficient selective flotation of copper values, including chalcopyrite, with suppression of iron pyrites; the promoter comprising a sodium sulfate of an aliphatic hydrocarbon having a carbon chain in excess of 12 carbons and chemically combined with at least one mole of the C2-C3 alkylene oxides.

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Pyrite depression in coal flotation by the addition of ...

Flotation reagents, kerosene and isohexanol, are added and agitated for 30 seconds before air is added to the cell. Sulfite is added as sodium sulfite at four different concentrations giving 5 pairs of samples at 0, 0.1, 0.25, 0.5 and 1.0 pound of sulfite per ton of coal. Each sample is subjected to flotation until the froth contains no coal.

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Indirect spectrophotometric determination of sodium ...

Indirect spectrophotometric determination of sodium ceftriaxone with n-propyl alcohol-ammonium sulfate-water system by extraction flotation of copper(II). Zhao W(1), Zhang Y, Li Q. Author information: (1)College of Chemistry and Environmental Science, Henan Normal University, The Key Laboratory of Environmental Pollution Control Technology of ...

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Separation of Sodium Sulfate by the Flotation Method

Jun 26, 2017  The flotation characteristics of pure sodium sulfate crystal in the saturated solution with both sodium sulfate and sodium chloride were examined. On the basis of results obtained, separations of sodium sulfate from the recovered salts, which prepared from the imitative electrolyte, were carried out by using a FW-50 type flotation test machine.

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SODIUM SULPHATE: ITS SOURCES AND USES

Uses. In the form of salt cake sodium sulphate is used in making wood pulp by the sulphate process, plate glass, window glass, and bottles, water glass, sodium sulphide, and precipitated barium sul­ phate (blanc fixe). One of the early patents for ore flotation by the Delprat process was based on the use of acid and salt cake.

Read More
SULFIDE FILMING AND FLOTATION OF CHRYSOCOLLA

the sodium sulfide to sodium sulfate with but little sulfid­ ... Excess sodium sulfide in the flotation" . e pulp had an injurious effect on the character of the froth, either greatly toughening it or eliminating it entirely. Rlekard and Ralston further stated that the poly­ ...

Read More
The role of oxidizer in the flotation separation of ...

Sep 07, 2021  In this study, the inhibitory effect of a composite depressant consisting of sodium sulfite and sodium lignosulfonate mixed at a molar ratio of 5:1 on Cu–Pb flotation separation was analyzed.

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US3827557A - Method of copper sulfide ore flotation ...

A novel flotation promoter used in the concentration of copper bearing ores for the efficient selective flotation of copper values, including chalcopyrite, with suppression of iron pyrites; the promoter comprising a sodium sulfate of an aliphatic hydrocarbon having a carbon chain in excess of 12 carbons and chemically combined with at least one mole of the C2-C3 alkylene oxides.

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Flotation of celestite with the anionic collector sodium ...

The flotation of celestite occurs with the anionic collector sodium dodecyl sulfate, but depression was found above pH 10, due to specific adsorption of HCO 3 and CO 3 2species under these ...

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Flotation of Silver Bearing Minerals from Sulfide Ores

Mar 19, 2018  Several tests were conducted in sodium sulfate solution in conjuntion with the usual sodium tetraborate electrolyte to improve understanding of flotation in conventional processing mills. Xanthate consumption also was measured using ultraviolet spectrophotometry to better understand the interaction between the collector and the mineral surface.

Read More
Microscopic mechanisms of inorganic salts affecting the ...

1 天前  sodium dodecyl sulfate. ... Foams are widely used industrially, in applications as diverse as petrochemicals[1], mineral flotation[2], food processing[3], and fire protection[4]. In the production of natural gas, foam drainage technology (in which aqueous foams play a vital role) has been successfully applied to the elimination of liquid ...

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FLOTATION OF ALUMINA FROM GIBBSITE BEARING–SHALE

However, the flotation of gibbsite by using amines as collectors can not be applied for the south western Sinai gibbsite ore because a significant amount of quartz is present. Bulut and Yurtsever [8] found that, sodium dodecyl sulfate, as an alkyl sulfate collector, is effective in the acidic pH range during the flotation of alumina

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The Application of Xanthate in Froth Flotation Process ...

Apr 11, 2019  Xanthate, as the flotation collector with strong collection effect, is mainly used to enhance the hydrophobicity of the mineral surface to meet the requirements of flotation.Xanthate is commonly used in the flotation process of sulfide minerals. Xanthate is a combination of alcohol, sodium hydroxide and carbon dioxide, which is an anionic collector. . It is light yellow, soluble in water and ...

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Role of Sodium Sulfide - Copper Lead Zinc Ore Flotation

Jul 17, 2018  Sodium sulfide is one of the most widely used alkali metal sulfides in the flotation of copper, lead, and zinc minerals in their oxidized form. The sulfidization process, developed in the U.S.A. in 1915-20 for oxide copper minerals flotation, is especially suitable for oxidized lead ores in which the gangue is usually basic.

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Microflotation studies of hexadecyl sulfate flotation of ...

Sodium hexadecyl sulfate is a very specific collector for barite both because a very low concentration of the collector is required and because the flotation is little influenced by pH. The flotation recovery of barite was markedly different for the three size fractions investigated, because of iron impurities.

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Flotation of barium sulfate contaminants soils

sulfate BaSO 4 compounds thus renders the remaining soil clean.4−5 As flotation is a promising method for the removal of hydrophilic minerals compounds from soil, the role of many relevant parameters in soil decontamination is largely unknown. As a result the objective of this study was to test the feasibility of the flotation process for the

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Flotation

A simple flotation device used to measure density is the hydrometer. It is a sealed tube with a narrow part at one end and some very dense material such as lead at the other. Such a tube if made correctly, floats "vertically" so that the narrow part sticks out of the liquid while the heavy end sinks.

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