dolomite depressants in the flotation of apatite and

dolomite depressants in the flotation of apatite and

  • Dolomite depressants in the flotation of apatite and

    A number of different chemical substances were evaluated for their ability to depress dolomite in the flotation of apatite and collophane from dolomite. Carboxymethyl cellulose was found to be the best depressant and citric acid and naphthyl anthyl sulfonates were found to be good depressants for dolomite.

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  • Dolomite depressants in the flotation of apatite and

    Dolomite depressants in the flotation of apatite and collophane from dolomite Dolomite depressants in the flotation of apatite and collophane from dolomite Zheng, X.; Smith, R.W. 1997-05-01 00:00:00 A number of different chemical substances were evaluated for their ability to depress dolomite in the flotation of apatite and collophane from dolomite.

  • Flotation of Dolomite from Apatite

    as a depressant in apatite flotation. In this paper, sodium pyrophosphate (NaPP) was introduced as a flotation depressant to selectively separate apatite from dolomite. Micro-flotation tests were performed to reveal the selective depression of apatite by NaPP. In

  • Cited by: 4
  • Adhesion of two bacteria onto dolomite and apatite: their

    The net results show that, while both function as depressants in anionic collector flotation of dolomitic phosphate ores, B. subtilis functions as the stronger depressant, especially for dolomite. Implications in the anionic flotation of apatite from dolomite are discussed.

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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. Article (PDF Available) For the flotation system of apatite and dolomite, it could be a new insight to enhance the surface

  • Effect of Sodium Chloride on Dolomite Flotation

    In addition, faster adsorption kinetics of the collector on dolomite are believed to also affect the resultant flotation behavior. Separation of apatite from dolomite in the alkaline pH range (pH 7-10), and that of dolomite from apatite in the acidic pH range (pH 5-6), was anticipated from the single mineral tests when sodium oleate was used as

  • MgO Dolomite Flotation

    Flotation feed material was conditioned at pH 10.0 with fatty acid followed by flotation of apatite and dolomite at pH 8. The float fraction was then reconditioned at a pH less than 4.0 for a selected time interval. After the addition of make-up water, dolomite flotation was carried out at pH 4.0 or below.

  • Effect and mechanism of phosphoric acid in the apatite

    Oct 10, 2017· To elucidate how phosphoric acid (H 3 PO 4) as a depressant achieves selective separation of apatite and dolomite, the flotation response of these minerals was investigated using both single and mixed mineral flotation.Microflotation results demonstrated that H 3 PO 4 exhibits a selective depressive effect on apatite. Flotation kinetics analyses also revealed that the presence of

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  • Separate Dolomite from Apatite

    The objective of this research was to demonstrate the feasibility of selectively grinding dolomite from phosphate pellets by using a high-pressure roll mill (HPRM). Successful application will improve the separation efficiency of dolomite from apatite in subsequent downstream operations. High-dolomitic pebbles from four phosphate mines were tested. Drums containing 250-340 kg of pebble samples

  • Use of depressants in the direct flotation of a silicate

    Use of depressants in the direct flotation of a silicate-carbonate phosphate ore . (1976) to obtain selectivity in the separation between sparingly soluble minerals, as well as in the separation apatite/carbonates (calcite/dolomite), the use of depressants is uppermost. These modifiers are responsible for inhibiting the absorption of the

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

    Reagents used in the flotation of phosphate ores: A critical review. Article (PDF Available) For the flotation system of apatite and dolomite, it could be a new insight to enhance the surface

  • Cellulase as a new phosphate depressant in dolomite

    They can function as flotation collectors and as flotation depressants and activators. A number of different chemical substances were evaluated for their ability to depress dolomite in the

  • Adhesion of two bacteria onto dolomite and apatite: their

    May 01, 2001· Read "Adhesion of two bacteria onto dolomite and apatite: their effect on dolomite depression in anionic flotation, International Journal of Mineral Processing" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at

  • Separating Dolomite & Apatite by Flotation

    Thus, flotation tests were also conducted with feed composition of 95:5 apatite:dolomite mixture. The results reported in Figure 4 indicate that effective separation of dolomite as a minor mineral, is also possible by flotation after two-stage conditioning.

  • Effect and mechanism of phosphoric acid in the apatite

    To elucidate how phosphoric acid (H3PO4) as a depressant achieves selective separation of apatite and dolomite, the flotation response of these minerals was investigated using both single and

  • (PDF) Effects of Metal Ions on the Flotation of Apatite

    The depression of apatite can be achieved by adjusting the pH of pulp because the flotation behavior barely occurred at pH below 4.5 in an anionic flotation of apatite without the addition of any

  • Effect of Sodium Pyrophosphate on the Reverse Flotation of

    Flotation results revealed that NaPP could selectively depress the flotation of apatite, thus realizing the separation of apatite from dolomite. Further, the selective depression mechanism of NaPP was studied through zeta potential measurements, contact angle measurements, and X-ray photoelectron spectroscopy (XPS) analysis.

  • Evaluation of phosphate depressants in the phosphate

    Numerous phosphate mineral depressants have been reported in the literature for use during anionic flotation of dolomite from carbonate fluorapatite in slightly acid circuits.

  • Separate Dolomite from Apatite

    The objective of this research was to demonstrate the feasibility of selectively grinding dolomite from phosphate pellets by using a high-pressure roll mill (HPRM). Successful application will improve the separation efficiency of dolomite from apatite in subsequent downstream operations. High-dolomitic pebbles from four phosphate mines were tested. Drums containing 250-340 kg of pebble samples

  • How Can I Depress Carbonates In Flotation

    arsenide depression in flotation of multi sulfide minerals. carbonate depression in flotation gkijnl. Carbonate Depression In Flotation carbonate depression in flotation souleschoolpta mining Danafloat Carbonate mineral gangue can also be present When liberated are usually much higher than copper Get Price And Support Online » Use of depressants in the direct flotation of a,【More Info】

  • dolomite and flotation plant

    Flotation of Dolomite from Apatite mdpi. The flotation process lasted 3 min for each test. Following this, the flotation recoveries were calculated based on the weights of concentrates and tailings. For artificial mixed minerals flotation experiments, the mass ratio of apatite and dolomite

  • apatite and calcite separation by flotation

    apatite and calcite separation by flotation. apatite and calcite separation by flotation Grinding Mill China Process for the separation of minerals by flotation It . Get Price Effect of Sodium Chloride on Dolomite Flotation. Flotation separation of apatite from dolomite

  • Cellulase as a new phosphate depressant in dolomite

    They can function as flotation collectors and as flotation depressants and activators. A number of different chemical substances were evaluated for their ability to depress dolomite in the

  • apatite and calcite separation by flotation

    apatite and calcite separation by flotation. apatite and calcite separation by flotation Grinding Mill China Process for the separation of minerals by flotation It . Get Price Effect of Sodium Chloride on Dolomite Flotation. Flotation separation of apatite from dolomite

  • Effects of Metal Ions on the Flotation of Apatite

    The effects of Ca 2+, Mg 2+, Al 3+, and Fe 3+ on the flotation behaviors of apatite, dolomite and quartz were investigated through a micro-flotation test, and the influence of calcium ions on the flotation of these minerals was further elucidated by solution chemistry study, zeta potential measurement, and X-ray photoelectron spectroscopy (XPS) analyses.

  • depression carbonate depression in flotation

    ONE > CONTACT US >>> depression carbonate depression in flotation. For more than 30 years, ONE has focused on R&D and manufacturing of mine crushing equipment, building crushing equipment, industrial pulverizing equipment and green building materials equipment, and provided professional solutions and mature supporting products to create value

  • "Effect of calcium concentration on calcite flotation from

    The most widely industrial flotation process for the treatment of phosphate ores containing carbonate as gangue minerals, especially in China, Saudi Arabia, Morocco, use strong acids, such as H3PO4 and H2SO4 as apatite depressants, and the carbonate minerals (especially calcite and dolomite) are selectively floated with the use of fatty acids as collectors at pH between 5.5 6.0. The

  • A Review of Flotation Separation of Mg Carbonates

    Effect of B. subtilis on dolomite (depression) and apatite in the presence of 10 mg/L sodium oleate as a collector 5.3. Flotation Separation of Dolomite from Magnesite Surface characterizations of dolomite and magnesite indicate that their separation from each other is quite complicated; however, separation can be achieved using flotation at

  • 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. The results of

  • dolomite flotation flow ofspescaracolli

    Dolomite depressants in the flotation of apatite and Dolomite depressants in the flotation of apatite and collophane from dolomite Article in Minerals Engineering 10(5):537-545 · May 1997 with 113 Reads DOI: 10.1016/S0892-6875(97)00031-9.

  • Selective Apatite Dolomite Flocculation

    Table of ContentsMethodsPolymer AdsorptionSingle Mineral Flocculation TestsFlocculation of Apatite-Dolomite Mixture The poor performance of conventional physical separation methods such as flotation and gravity separations in the treatment of fine particles has often been stressed. This has encouraged research to improve the efficiency of conventional methods as well as develop new techniques

  • Effect of Sodium Pyrophosphate on the Reverse Flotation of

    Flotation results revealed that NaPP could selectively depress the flotation of apatite, thus realizing the separation of apatite from dolomite. Further, the selective depression mechanism of NaPP was studied through zeta potential measurements, contact angle measurements, and X-ray photoelectron spectroscopy (XPS) analysis.

  • Dolomite-apatite separation by amphoteric collector in

    Jun 07, 2013· Read "Dolomite-apatite separation by amphoteric collector in presence of bacteria, Journal of Central South University of Technology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • Selective flotation of dolomite from apatite using sodium

    reduced, while dolomite flotation is increased as compared to the single mineral flotation results. The selectivity, as seen in Figure 28, is not observed also for 95:5 apatite:dolomite mixture. The flotation of apatite remains the same as that of the individual mineral, but the dolomite

  • The flotation of apatite and dolomite in orthophosphate

    THE FLOTATION OF APATITE AND DOLOMITE IN ORTHOPHOSPHATE SOLUTION by DAVID LAWRENCE JOHNSTON B.A.Sc., The University of British Columbia, 1963 A THESIS SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF APPLIED SCIENCE in the Department of MINERAL ENGINEERING We accept this thesis as conforming to the

  • dolomite and flotation plant

    Flotation of Dolomite from Apatite mdpi. The flotation process lasted 3 min for each test. Following this, the flotation recoveries were calculated based on the weights of concentrates and tailings. For artificial mixed minerals flotation experiments, the mass ratio of apatite and dolomite