feldspar flotation silica

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 ...

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Differential Flotation of Some Egyptian Feldspars for ...

2015-11-5  2.3. Direct Cationic Flotation of Feldspar Locally produced quaternary ammonium salt was used to separate the silica impurities from the previously ob-tained flotation concentrate. Hydrofluoric acid was added in this circuit as a silica depressant and a feldspar ac-tivator as well.

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(PDF) Differential Flotation of Some Egyptian Feldspars ...

Cationic flotation of feldspar from this product was then carried out employing a locally produced quaternary ammonium salt in presence of HF acid, as a silica depressant and a feldspar activator ...

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11.27 Feldspar Processing - epa.gov

2015-9-10  present, the first flotation step may be bypassed. Sometimes the final flotation stage is omitted, leaving a feldspar-silica mixture (often referred to as sandspar), which is usually used in glassmaking. From the completed flotation process, the feldspar float concentrate is dewatered to 5 to 9 percent moisture.

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(PDF) Recovery of feldspar and silica sand from arkosic ...

In this study, recovery of feldspar from trachyte by flotation was studied. A feldspar concentrate containing 5.72% K2O, 5.33% Na2O, 0.321% Fe2O3 and 0.080% TiO2

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5 Factors Affecting Silica Sand Flotation - Mining-pedia

2020-11-23  Flotation is one of the commonly used methods for silica sand beneficiation. It is mainly used to remove mica and feldspar minerals that are symbiotic with silica sand. However, in the actual production process, the flotation process will be affected by many factors, including: feed size, slurry temperature, slurry liquid chemical composition, flotation reagents and other flotation conditions.

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SELECTIVE SEPARATION OF Na- AND K-FELDSPAR FROM

2016-4-1  when the froth flotation was supplemented by magnetic separation [8]. The suitability of weathered granitic rocks for the raw material of feldspar and silica sand indicated that granite is more useful than granodiorite as a raw material, because the former is rich in quartz and potash feldspar. Good results of feldspar flotation was

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Separation of silica from bauxite via froth flotation ...

2009-3-1  This flotation was carried out in two steps: the first step was the flotation of gibbsite/kaolinite from quartz at pH 2, using alkyl sulfates as collectors; the second step was the flotation of kaolinite from gibbsite, using amines at pH 8. Liu et al., 2007, Wang et al., 2004, Xu et al., 2004 related the viability of increasing the Al 2 O 3 ...

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Amine–oleate interactions in feldspar flotation ...

2006-1-1  Flotation tests show that the amine concentration ought to be kept lower than 1.47 × 10 −5 mol/l (≈5 ppm) to prevent feldspar loss during metal-oxides flotation stage and hence dewatering/washing operation after mica flotation seems to be a crucial step. Feldspar recovery in the concentrate, being 86.67% without dewatering/washing ...

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(PDF) Differential Flotation of Some Egyptian Feldspars ...

Cationic flotation of feldspar from this product was then carried out employing a locally produced quaternary ammonium salt in presence of HF acid, as a silica depressant and a feldspar activator ...

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KGS--Bull. 96, Pt. 6--Feldspar and Silica from River Sands ...

2008-1-3  The silica sand residue remaining after flotation of the feldspar is capable of being concentrated to an Fe 2 O 3 content of less than 0.03 percent. These tests show that both a silica sand and feldspar product of commercial grade can be produced from the sand sampled at Concordia, Kansas City, and Wichita.

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AP-42 Background Document for Section 11.27 Feldspar ...

2021-6-25  is present, the first flotation step may be bypassed. Sometimes the final flotation stage is omitted, leaving a feldspar-silica mixture (often referred to as sandspar), which is usually used in glassmaking. From the completed flotation process, the feldspar float concentrate is dewatered to 5 to 9 percent moisture.

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Differential Flotation of Some Egyptian Feldspars for ...

Cationic flotation of feldspar from this product was then carried out employing a locally produced quaternary ammonium salt in presence of HF acid, as a silica depressant and a feldspar activator at pH 3. Feldspar final concentrates assaying 80.8% - 89.5% feldspar mineral, 0.119% - 0.127% Fe2O3 and 16.84% - 18.65% Al2O3, were obtained at the ...

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WO2000000443A2 - Flotation process for separating silica ...

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 ...

More

SELECTIVE SEPARATION OF Na- AND K-FELDSPAR FROM

2016-4-1  when the froth flotation was supplemented by magnetic separation [8]. The suitability of weathered granitic rocks for the raw material of feldspar and silica sand indicated that granite is more useful than granodiorite as a raw material, because the former is rich in quartz and potash feldspar. Good results of feldspar flotation was

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Chapter 8 Flotation of Non-Sulphide Minerals

2015-10-19  Lecture 6 Flotation 1 Chapter 8_Flotation of Non-Sulphide Minerals Contents: Oxides silicates. Adsorption chemisorption of collectors. Activation depression. Silica, feldspar, calcite, phosphates. Flotation of Insoluble Oxides and Silicates: There is a very large number of minerals of this type. Whether or not they float depends on

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The properties of feldspars and their use in whitewares,

The Alkali Feldspar Join, Showing the Probable Sub-Solidus Relations 9 ... 5. Portions of the Equilibrium Diagrams, Soda-Alumina-Silica and Potash-Alumina-Silica 11 6. Fired Properties of Semi-Vitreous Bodies 17 7. Properties of Semi-Vitreous Bodies at Maturity ... have led to flotation methods for the separation of quartz and mica. The ...

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Feldspar production from dimension stone tailings for ...

2019-1-1  Hydrofluoric acid was used as silica depressant and feldspar activator and to adjust the pulp pH to 2.5. The pulp density was 35 wt% solids and the impeller speed 1400 rpm. The conditioning time was 5 min and the flotation time 5 min. Tap water was used throughout the experiments.

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Separation of silica from bauxite via froth flotation ...

2009-3-1  This flotation was carried out in two steps: the first step was the flotation of gibbsite/kaolinite from quartz at pH 2, using alkyl sulfates as collectors; the second step was the flotation of kaolinite from gibbsite, using amines at pH 8. Liu et al., 2007, Wang et al., 2004, Xu et al., 2004 related the viability of increasing the Al 2 O 3 ...

More

flotation feldspar description

WO2000000443A2 - Flotation process for separating silica ... 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.

More

WO2000000443A2 - Flotation process for separating silica ...

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 ...

More

SELECTIVE SEPARATION OF Na- AND K-FELDSPAR FROM

2016-4-1  when the froth flotation was supplemented by magnetic separation [8]. The suitability of weathered granitic rocks for the raw material of feldspar and silica sand indicated that granite is more useful than granodiorite as a raw material, because the former is rich in quartz and potash feldspar. Good results of feldspar flotation was

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Study on Flotation Mechanism of Separation of Potassium ...

Potassium feldspar and quartz are all silicate minerals with frame structure,and have the similar crystal structure and physicochemical properties. Therefore, flotation has become the main method to separate potassium feldspar from quartz. The separation of potassium feldspar from quartz with anion and cation mixed collector was studied in the paper.

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Froth Flotation Principles

2017-2-26  Feldspar Flotation Due to the gradual depletion of high-grade deposits of feldspar and felspathoid minerals and more rigid marketing specifications, flotation has come to the foreground as a commercial concentrating process in this non-metallic field, so important to the glass industry. ... Silica Sand (Quartz) Flotation

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Chapter 8 Flotation of Non-Sulphide Minerals

2015-10-19  Lecture 6 Flotation 1 Chapter 8_Flotation of Non-Sulphide Minerals Contents: Oxides silicates. Adsorption chemisorption of collectors. Activation depression. Silica, feldspar, calcite, phosphates. Flotation of Insoluble Oxides and Silicates: There is a very large number of minerals of this type. Whether or not they float depends on

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Flotation collectors optimized performance

Feldspar Direct flotation Fluorspar of minerals Kaolin Pyrochlore Scheelite Silica Sulfide Wollastonite Zinc Oxide. 5 ... alternative product for silica flotation. They requested a product that would achieve the same metallurgical results as the one they were using, but with improved froth characteristics.

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The properties of feldspars and their use in whitewares,

The Alkali Feldspar Join, Showing the Probable Sub-Solidus Relations 9 ... 5. Portions of the Equilibrium Diagrams, Soda-Alumina-Silica and Potash-Alumina-Silica 11 6. Fired Properties of Semi-Vitreous Bodies 17 7. Properties of Semi-Vitreous Bodies at Maturity ... have led to flotation methods for the separation of quartz and mica. The ...

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AkzoNobel Surface Chemistry - Mining Technology

Dolomite, feldspar, fluorspar; Graphite, iron ore, kyanite, magnesite; Monazite, potash, pyrochlore, quartz; Scheelite, silica, zinc oxides; Colloid and surface chemistry for flotation. AkzoNobel Surface Chemistry is at the forefront of the advanced colloid and surface chemistry upon which successful flotation depends.

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Separation of feldspar from quartz: Mechanism of mixed ...

2002-8-1  Using pure albite and quartz minerals, the separation of albite from quartz using mixed cationic/anionic reagent schemes is assessed through Hallimond flotation, zeta potential and diffuse reflectance FTIR studies. The reagent schemes are tested in bench-scale flotation for the separation of albite from Greek Stefania feldspar ore. The single mineral flotation tests showed the feasibility of ...

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