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Carbonate Depression In Flotation

Jun 15, 2021

There is an interesting paper published in the Flotation'13 about apatite flotation with carbonate called: Understanding the effect of CO2 on apatite flotation from Catal o s siliceous carbonate phosphate ore Sandeep Bisht. 6 years ago. Sandeep Bisht 6 years ago. Like

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Request PDF | Effects of sodium carbonate and calcium chloride on calcite depression in cationic flotation of pyrolusite | In the cationic flotation of

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    A flotation process was developed by the Bureau of Mines for separation of carbonate and phosphate minerals, occurring in unaltered phosphate ores of the phosphoria formation. The process involves depression of phosphate minerals with fluosilicic acid and flotation of carbonate minerals with fatty acid emulsions. In individual laboratory tests, selective removal

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    These depressants partially affect Mg carbonate flotation by changing pH value. pH, collector, and depressant concentrations are the main parameters for a selective Mg carbonate separation. For instance, it has been reported that thioglycollic acid and citric acid selectively depressed pyrite between pH 9.0 and 10, but could not depress

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    In this study, conducted in a laboratory scale, eight different depressants, organic and inorganic, were tested in the direct flotation of a Brazilian silicate-carbonate phosphate ore. The best performance in the depression of calcite and silicates was achieved with cassava starch

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    carbonate depressant, satisfy the requirement of paper coating, ceramics production, functional filler, and pharmaceuticals applications. Tailings could also be used in carpets, roofs, and tiles production industries. Keywords Flotation, Depression, Attrition Scrubbing, Carbonate Separation 1. Introduction

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    US3844412A US30887472A US3844412A US 3844412 A US3844412 A US 3844412A US 30887472 A US30887472 A US 30887472A US 3844412 A US3844412 A US 3844412A Authority US United States Prior art keywords mineral algae powder flotation minerals alginic acid Prior art date 1969-06-25 Legal status (The legal status is an assumption and is not a

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    flotation pulps for the depression of gangue is . wides~readJ . and it is desirable that the mechanism of the depressant aetion be elucidated to allow close control of the flotation process to be obtained. Two probable mechanisms for sodium silicate depression of gangue have been postulated (lO), ' : ~. ( i) surtace closure (10) Taggart, A.F

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Flotation and depression control of arsenopyrite through pH and xanthate as the collector. Arsenopyrite Rejection. Flotation of Lead Carbonate. flotation-of-lead-carbonate Flotation Material Balancing Excel Solver: Mass Balance Calculations Example

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Selective Depression and Depression Mechanism of Fluorine-bearing Minerals and Calcium-bearing Carbonate MineralsCN 聂光华 北京科技大

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    The dose of water glass varied from 350 to 1450 g/t, sodium carbonate (bicarbonate) varied from 0 to 11.5 kg/t, sodium sulfide up to 4.9 kg / t. With increased dose of inorganic modifiers, it was not possible to achieve selective depression of calcite and apatite while maintaining effective scheelite flotation

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Carboxymethyl cellulose, CMC, is widely used in mineral processing as a flotation depressant, mainly for the depression of carbonate and talcaceous gangue in the flotation of Cu-Ni sulfide and PGM ores. Although CMC is a common depressant that can be used in the flotation of different ores, understanding of the interaction mechanisms between CMC and mineral

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Micro-flotation results showed that using CMC as the depressant, strong depression on talc floatability was observed when the pulp pH was adjusted from

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    On the other hand, the adsorption of the mixed depressants and sodium oleate on the carbonate minerals (calcite and dolomite) was not mutually exclusive

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Dec 01, 2021 The flocculation and depression effects of starches, and the adsorption differences of starches on minerals were deeply investigated in carbonate-containing iron ore flotation. 2. Materials and methods 2.1. Materials The siderite, hematite, and quartz mineral samples originated from Liaoning Province, China

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Jun 15, 2019 Thus, sodium carbonate is commonly used in flotation as a pH modifier . Moreover, its addition prior to sodium silicate produced positive synergistic effects on gangue mineral depression [5,21,23,26,58]. In this study, this combination afforded the best results over all the tested depressants

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Aug 12, 2015 Sodium cyanide. Sodium cyanide is mainly used to depress sphalerite in the first or lead-flotation stage in separating lead from zinc minerals. Its action on pyrite is nearly as strong as on sphalerite, but it does not affect galena unless a large excess is added or the contact time is too long. The effect of sodium cyanide is often intensified

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    flotation of smithsonite and calcite were analyzed. In order to depress calcite, sodium hexametaphosphate (SHMP), water glass (WG), carboxymethyl cellulose (CMC) and lignosulfonate calcium (LSC) were used as depressants. he flotation separation of smithsonite and calcite was T conducted in the mixed mineral system with a varied weight ratio

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Jun 30, 2017 The effects of carbonate minerals (dolomite and siderite) on the flotation of hematite using sodium oleate as a collector were investigated through flotation tests, supplemented by dissolution measurements, solution chemistry calculations, zeta-potential measurements, Fourier transform infrared (FTIR) spectroscopic studies, and X-ray

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Carboxymethyl cellulose, CMC, is widely used in mineral processing as a flotation depressant, mainly for the depression of carbonate and talcaceous gangue in

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    1. Adsorption surface structures of polyhydroxyl compounds of starch on apatite, calcite, and dolomite have different properties; this determines the selective flotation of apatite by carboxylic acids at pH 7. 2. The observed optimum flotation of calcite and dolomite by carboxylic acids as a function of the starch consumption, and the subsequent depression of flotation, may be

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Lecture 5 Flotation 4 3. Chromate as depressant (CrO 7 2-) Lead chromate (PbCrO 7) is a sparingly soluble compond. As a result, when chromate salts are added to a galena system, the formation of lead chromate on the galena surface will occur. Depression is ascribed to the strong hydration of chromate adsorbed on the surface. 4

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    diagrams. Higher dosages of sodium silicate (1 and 2 kg/t) resulted in an over-depression of the minerals [7], and 500 g/t of sodium silicate is considered optimal for this particular ore. Minerals 2020, 10, x FOR PEER REVIEW 3 of 9 to flotation [8], hence the low dosages chosen for this study. The sodium silicate test at 350 g/t showed

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    A flotation process is disclosed wherein the selectivity to the valuable mineral is improved by the depression of silica or siliceous gangue by the use of a hydroxy-containing compound such as an alkanol amine. The process is useful in the flotation of

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    The study of the depression effect of non-toxic depressants on the flotation separation of chalcopyrite from galena is of great importance for both industrial applications and theoretical research. The mixed depressant (D Final ) of four common inhibitors—sodium carboxymethyl cellulose, sodium silicate, sodium sulfite, and zinc sulfate

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    Flotation is conducted at high pH levels often times greater than 11 using lime to ensure good depression of sulphide minerals, particularly iron sulphides and copper. Other depressants used include cyanide and Nokes reagent (thiophosphorous or thioarsenic compounds)

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  • Carbonate Depression In Flotation
    Carbonate Depression In Flotation

    ditioned in carbonate solutions. The effects of dissolved mineral species of calcite and apatite on the flotation of these minerals has been shown recently in our laboratory to be drastic under certain solution conditions [6]. Flotation of calcite and apatite in mineral supernatants was drastically depressed due to the pre-sence of dissolved

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