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how can i depress carbonates in flotation

how can i depress carbonates in flotation

mineral types, carbonates and apatite For some ores, the direct flotation route, in which apatite is floated and carbonates are depressed, is employed Alternatively, the carbonates can be floated and apatite depressed by means of the reverse flotation route In both cases, it is necessary to use selective depressants for carbonates, such as corn

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Flotation separation of carbonate from sulfide minerals, I

Jul 01, 2004· Reverse flotation of carbonate minerals from refractory gold-bearing sulfide ores requires the flotation of the carbonate minerals (calcite, dolomite, siderite, etc.) while depressing sulfide minerals and native gold. The flotation of carbonates can be achieved by anionic oxyhydryl collectors and this has been well established.

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Flotation of carbonates from phosphate ores in acidic

Jun 01, 1993· The U.S. Bureau of Mines developed a process to separate carbonate (cal- cite) from phosphate minerals occurring in the unaltered phosphate ores of Phosphorla Formation (Rule et al., 1974). The process uses fluosiliclc acid to depress the phosphate while floating the calcite with fatty acid emulsion.

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Carbonate Depression In Flotation

How can i depress carbonates in flotation. Flotation separation of carbonate from sulfide minerals. jul 01, 2004 read flotation separation of carbonate from sulfide minerals, ii mechanisms of flotation depression of sulfide minerals by thioglycollic acid and citric acid, minerals engineering on deepdyve, the largest online rental service for scholarly research with thousands of academic

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carbonate depression in flotation

In this pH range, the flotation recovery of pyrolusite is higher than that of calcite. 2) Sodium carbonate and calcium chloride have a good depression effect on the calcite flotation. Sodium carbonate acts more effectively than calcium chloride. These depressant agents do not have a significant negative effect on the flotation of pyrolusite.

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carbonate depression in flotation

Flotation separation of carbonate from sulfide This is usually achieved by direct flotation of the gold and sulfide minerals into a bulk flotation concentrate. However, if the flotation recoveries of gold and sulfide are unsatisfactory, reverse flotation of the carbonate minerals is a possible alternative.

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how can i depress carbonates in flotation

mineral types, carbonates and apatite For some ores, the direct flotation route, in which apatite is floated and carbonates are depressed, is employed Alternatively, the carbonates can be floated and apatite depressed by means of the reverse flotation route In both cases, it is necessary to use selective depressants for carbonates, such as corn

More

Flotation separation of carbonate from sulfide minerals, I

Jul 01, 2004· Reverse flotation of carbonate minerals from refractory gold-bearing sulfide ores requires the flotation of the carbonate minerals (calcite, dolomite, siderite, etc.) while depressing sulfide minerals and native gold. The flotation of carbonates can be achieved by anionic oxyhydryl collectors and this has been well established.

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Carbonate Phosphate Separation by Flotation

Selective fatty acid flotation of carbonate gangue from sedimentary apatites was achieved under acidic pH’s without a specific apatite depressant and without conditioning the pulp with the collector. Concentrates (35-38% P2O5, 0.8-1% MgO) with high recoveries (80-85%) were produced from Indian and Chinese dolomitic ores. The calcareous and/or dolomitic-siliceous phosphate ores of South

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carbonate depression in flotation

2) Sodium carbonate and calcium chloride have a good depression effect on the calcite flotation. Sodium carbonate acts more effectively than calcium chloride. These depressant agents do not have a significant negative effect on the flotation of pyrolusite.

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A Review of Flotation Separation of Mg Carbonates

negative ZP from pH 3 to 11 [34]; it can also be noted that the ZP of Mg carbonates become negative with increased NaOl concentration [31]. In carbonate bio-flotation, high negative charges are generated on the bacteria surfaces over a wider pH range when they are introduced in pulp containing Mg2+ and Ca2+ ions [3,23,33] (Table2); suggesting

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A Review of Flotation Separation of Mg Carbonates

The first flotation separation for the rejection of magnesite was reported by Doerner and Dwigh (1930s) [].Flotation of Mg carbonates is typically carried out by using fatty acids, since these collectors give insoluble complexes with all divalent cations [].Determination of the appropriate depressing reagents for sinking valuable minerals in the presence of collectors for carbonates is a

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Carbonate Depressants Froth Flotation (Sulphide & Oxide

To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN Use Add New Topic to ask a New Question/Discussion about Flotation. OR Select a Topic that Interests you. Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input. Use Add Comment = to comment on someone else’s

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Use of depressants in the direct flotation of a silicate

1. Introduction. Flotation is the most common concentration process used by the mineral industry, both in quantity of ores processed and in diversity of applications (Peres et al, 2007).At present, over 2 x 10 9 t per year of ore is estimated to be processed through flotation. In Brazil, this technique played an important role in the growth of the mineral sector, especially in the industry of

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Lower temperature flotation of carbonate-fluorite ores

Aug 24, 2010· The authors provide insight into the problem of selective flotation of fluorite from carbonate-fluorite ores. It is found that oxyhydrate collectors used in combination with sodium fluoride provide rather high level of selectivity in fluoride flotation from poor high-carbonate ores and make it possible to eliminate high-temperature pulp treatment with acceptable reduction in the flotation

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Collector for flotation of carbonates

15. The use of at least one ester of phosphoric acid by the formula (I)as described in claim 1, in the separation by flotation of the carbonates contained in the phosphate rock. 16. The use of a collector according to claim 1 for the separation by flotation of the carbonates contained in

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how can i depress carbonates in flotation

no flotation can occur. reported by many investigators to depress pyrite flotation, and yet none of them have ever been useful industrially. Carbonate Depression In Flotation Carbonate Depression In Flotation.

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fluorite ore carbonate

Fluorite carbonate ore processing plant. Fluorite Flotation Process Only jig can deal with the coarse fluorite ore. Fluorite flotation equipment includes crusher ball mill flotation machine etc. Jaw crusher is the primary crusher. It is used in fluorite coarse crushing process.

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A Review of Flotation Separation of Mg Carbonates

Exploring temperature effects on flotation of Mg carbonates is one of the areas that requires a detailed examination. Moreover, study and development of collectors that can selectively absorb on Mg carbonate at basic pH could be essential to increasing Mg carbonate flotation efficiency.

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Solution chemistry of carbonate minerals and its effects

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 photoelectron spectroscopy (XPS) analyses.

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