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Alizarin Red S as a Flotation Modifying Agent in Calcite

Flotation of calcite/apatite mixtures Results obtained for the flotation of calcite/apatite mixtures as a function of alizarin red S concentration are given in Fig. 7. In the absence of alizarin red S modifier, oleate floats both minerals at close to 100% levels. As alizarin red S concentration is increased to 5 X 106 kmol/m3, the flotation of

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Improved Flotation Separation of Apatite from Calcite with

Apatite (Ca10(PO4)6F2) is the most important phosphate mineral, and flotation is the main beneficiation method to separate apatite from its major gangue mineral calcite (CaCO3).

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CalciteApatite Flotation Columbia University

CalciteApatite Flotation K. P. Anan thapadmanabhan and while both the supernatants of calcite and apatite depress calcite flotation under s~ilar pH conditions, their effect is minimal above pH 13. Also, the depressing effect of apatite Somasundaran, P., "On the Problem of Separation of Calcite from Calcareous Apatite, Instituto Di Arte

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(PDF) Reagents used in the flotation of phosphate ores: A

Reagents used in the flotation of phosphate ores: A critical review. fatty acids and their salts have been widely used as collectors in the apatite/calcite flotation separation due to their

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apatite and calcite separation by flotation

Improved Flotation Separation of Apatite from Calcite . Apatite (Ca 10 (PO 4) 6 F 2) is the most important phosphate mineral, and flotation is the main beneficiation method to separate apatite from its major gangue mineral calcite (CaCO 3).Till date, fatty acids and their salts have been widely used as collectors in the apatite/calcite flotation separation due to their low cost and strong

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Selective adsorption of sodium polyacrylate on calcite

In the flotation separation of apatite and calcite, fatty acid collectors are adsorbed on both mineral surfaces owing to the presence of the same calcium ions on the cleavage planes , , . Therefore, the floatability of both minerals is excellent and the flotation selectivity is very low.

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Flotation selectivity of novel alkyl dicarboxylate

Flotation recovery was studied in the pH range of 212 for apatite, and 612 for calcite (due to the alkaline nature of CaCO 3 it was not feasible to measure at a pH lower than 6) for a collector concentration of 2 × 10 4 M with the data obtained presented in Fig. 2a and b respectively. Even though the structures of the collectors are relatively similar there are obviously considerable

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FLOTATION ROUTES FOR A PHOSPHATE ORE BEARING

separation between calcite and silicates. P 2O 5 recovery was strongly affected by the system pH, improved results being achieved at 10, in comparison with those obtained at pH 9. The mass and metallurgical balance of the best test using the route calcite flotation followed by apatite flotation, test T3, is illustrated in figure 4. The P 2O

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Improved Flotation Separation of Apatite from Calcite with

Apatite (Ca 10 (PO 4) 6 F 2) is the most important phosphate mineral, and flotation is the main beneficiation method to separate apatite from its major gangue mineral calcite (CaCO 3).Till date, fatty acids and their salts have been widely used as collectors in the apatite/calcite flotation separation due to their low cost and strong collecting ability, but their selectivity is limited.

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Separating Dolomite Apatite by Flotation

Since an optimum separation of the mineral mixture was achieved by reconditioning at pH below 4.5, further studies were conducted to understand the mechanisms of selective flotation under those conditions. Selective flotation of dolomite from apatite upon acid reconditioning can be due to: (a) Selective desorption of the collector from apatite

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