apatite and calcite separation by flotation

  • Flotation separation of apatite and calcite using gum ...

    2022-1-2 · Flotation separation of calcium-bearing minerals is a challenge in the mineral processing. To achieve clean and efficient flotation separation of apatite and calcite, gum arabic (GA), a kind of non-toxic, environmentally friendly and readily available natural gum, was used as a depressant of calcite in the apatite flotation.

    Chat Online
  • Flotation separation of apatite from calcite based on the ...

    2022-1-1 · Flotation separation of apatite and calcite is difficult due to the same surface properties and depressant is essential. As shown in Fig. 2, the recovery of apatite increases from 69.74% to 85.03% when the pH increases from 6.0 to 8.0.Then the apatite recovery obviously decreases to 40.95% when the pH reach to 11.0.

    Chat Online
  • Flotation separation of apatite and calcite using gum

    2021-11-4 · Flotation separation of apatite and calcite has always been difficult because of their similar physiochemical properties. To realize the flotation separation of the two minerals, many inorganic depressants are usually used, which contaminate the ...

    Chat Online
  • The flotation separation behavior of apatite from calcite ...

    2020-12-1 · The sample of apatite and calcite were purchased from Ye’s Mineral Specimen Group, Guangdong Province, China and the high purities were confirmed by the X-ray diffraction (XRD) analysis and chemical composition analysis (shown in Fig. 1 and Table 1).The apatite contained 39.37% P 2 O 5 and calcite contained 55.98% CaO indicating the purity of hydroxy

    Chat Online
  • Effect of sodium pyrophosphate on the flotation

    2020-7-1 · Within the range of pH 6.5–9.3, the separation of apatite from gangue mineral calcite can be achieved by flotation in the case of SPP as a depressant (120 mg/l) and NaOL as a collector (20 mg/l). The different components of pyrophosphate and its complexing ability had significant influence on separation.

    Chat Online
  • An Overview of Calcite Recovery by Flotation | SpringerLink

    2020-9-23 · In some ores, calcite is present in moderate quantities along with silicates. In such cases, silicates or sulphides associated with calcite are floated using amine surfactants (Hanna 1975).All these experiments were performed at alkaline pH; if silicates or sulphides were present in the ores, these were floated before the separation of scheelite and calcite was performed.

    Chat Online
  • Flotation selectivity of novel alkyl dicarboxylate ...

    2015-5-1 · Flotation recovery was studied in the pH range of 2–12 for apatite, and 6–12 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

    Chat Online
  • Effect of sodium pyrophosphate on the flotation

    2019-12-11 · In this study, the separation of calcite and apatite was achieved by the depressant sodium pyrophosphate (SPP). Microflotation results showed that when using 20 mg/l sodium oleate (NaOL) as the collector, apatite could be significantly depressed by ...

    Chat Online
  • Effect of calcium concentration on calcite flotation from ...

    Abstract. The flotation process currently considered for apatite concentration from the Santa Quitéria phosphate deposit (Brazil), involves bulk flotation of apatite and calcite with anionic collector at pH=10 followed by calcite flotation at pH=5.5, adjusted with H 3 PO 4.Although this concept is efficient from the point of view of separation between apatite and calcite, the

    Chat Online
  • Calcite-Apatite Flotation - Columbia University

    2004-2-4 · responsible for the decrease in flotation. 7. Flotation of apatite also was depressed by the supernatants of both calcite and apatite. 8. The effects of supernatants of calcite and apatite on ap-atite flotation is attributed to that of carbonate and phosphate species respectively. 9.

    Chat Online
  • Flotation separation of apatite and calcite using gum

    2021-11-4 · Flotation separation of apatite and calcite has always been difficult because of their similar physiochemical properties. To realize the flotation separation of the two minerals, many inorganic depressants are usually used, which contaminate the ...

    Chat Online
  • The flotation separation behavior of apatite from calcite

    2020-12-1 · The flotation separation behavior of apatite from calcite using carboxymethyl chitosan as depressant Minerals Engineering ( IF 4.765) Pub Date : 2020-12-01, DOI: 10.1016/j.mineng.2020.106635

    Chat Online
  • Study on Flotation Mechanism of Calcite and Apatite - CNKI

    Abstract: Apatite is the main mineral materials of the phosphate fertilizer industry and phosphorous chemicaL.It has various of tepes, different forming process, crystalline form and chemical composition have a lot of difference, so the flotability is differ. In flotation of apatite, the calcite and apatite have the similar flotability because of they contain the same activity

    Chat Online
  • Effect of sodium pyrophosphate on the flotation

    2019-12-11 · In this study, the separation of calcite and apatite was achieved by the depressant sodium pyrophosphate (SPP). Microflotation results showed that when using 20 mg/l sodium oleate (NaOL) as the collector, apatite could be significantly depressed by ...

    Chat Online
  • Effect of calcium concentration on calcite flotation from ...

    Abstract. The flotation process currently considered for apatite concentration from the Santa Quitéria phosphate deposit (Brazil), involves bulk flotation of apatite and calcite with anionic collector at pH=10 followed by calcite flotation at pH=5.5, adjusted with H 3 PO 4.Although this concept is efficient from the point of view of separation between apatite and calcite, the

    Chat Online
  • Effects of Metal Ions on the Flotation of Apatite ...

    2018-4-2 · The effects of Ca2+, Mg2+, Al3+, and Fe3+ 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

    Chat Online
  • XRD pattern of the dolomite sample. | Download Scientific ...

    Reverse flotation separation of calcium-containing gangue minerals (e.g., calcite and dolomite) from apatite with fatty acids as the collectors by depressing the apatite flotation is regarded as ...

    Chat Online
  • An Alternative Flotation Process for Apatite

    2020-10-13 · Calcite flotation –Coarse fraction Effectof the collector dosage –Float Mineralogical composition 75 100 93,1 90,8 89,9 86,3 Mineral (%) Quartz Apatite Calcite 0 25 50 200 300 400 500 1,4 1,1 1,2 1,1 2,0 3,2 4,4 9,6 Coconut soap (g/t)

    Chat Online
  • Depressing effect of sodium hexametaphosphate on

    The separation of rutile from apatite by flotation and the mechanism of depressing the apatite of sodium hexametaphosphate were studied. The results showed that rutile and apatite could be ...

    Chat Online
  • Role of Pseudomonas songnenensis-Apatite Interaction

    2021-3-28 · FTIR spectra of P. songnenensis, apatite mineral, and treated apatite with P. songnenensis. Figure 4 shows that the FTIR spectrum of calcite mineral. It is characterized by a strong band at 1438.4 cm-1, concerning the C-O stretching mode of carbonate and a peak at 874 cm-1 of the bending mode. The symmetric bending is represented by a peak at ...

    Chat Online
  • Effect of calcium concentration on calcite flotation from ...

    2018-8-8 · Apatite, calcite, quartz, graphite The separation of apatite from calcite by flotation is extremely difficult due to similarity in the surface physicochemical properties for both minerals Santa Quitéria INB and Yara

    Chat Online
  • Alizarin Red S as a Flotation Modifying Agent in Calcite ...

    2003-2-28 · Flotation of calcite and apatite Flotation results obtained for calcite and apatite with oleate are given in Figs. 5 and 6. Calcite shows a sharp drop in flotation between pH 8 and 10; while elsewhere in the tested pH range, flotation is more than 95%. The flo-tation of apatite, on the other hand, is nearly 100% between pH 6 and 12, with

    Chat Online
  • Effects of Metal Ions on the Flotation of Apatite ...

    2018-4-2 · The effects of Ca2+, Mg2+, Al3+, and Fe3+ 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

    Chat Online
  • 抑制剂海藻酸钠浮选分离磷灰石和方解石的作用及机理|钟春晖 ...

    Abstract: The effect and mechanism of flotation separation of apatite and calcite using depressant sodium alginate (SA) were investigated through flotation test, adsorption test, FTIR and XPS analysis. The results show that SA can strongly inhibit calcite while

    Chat Online
  • Depressing effect of sodium hexametaphosphate on

    The separation of rutile from apatite by flotation and the mechanism of depressing the apatite of sodium hexametaphosphate were studied. The results showed that rutile and apatite could be ...

    Chat Online
  • Review of the Main Factors Affecting the Flotation of ...

    2020-12-10 · For calcareous ores, separation by flotation of carbonates (calcite and dolomite) and phosphates is challenging since the two mineral groups share similar surface chemical properties. There are also colloidal phosphate ores, sedimentary ores containing, in general, a very small grain sized apatite (cryptocrystal).

    Chat Online
  • An Alternative Flotation Process for Apatite

    2020-10-13 · Calcite flotation –Coarse fraction Effectof the collector dosage –Float Mineralogical composition 75 100 93,1 90,8 89,9 86,3 Mineral (%) Quartz Apatite Calcite 0 25 50 200 300 400 500 1,4 1,1 1,2 1,1 2,0 3,2 4,4 9,6 Coconut soap (g/t)

    Chat Online
  • 油酸钠体系下HEDP对磷灰石与方解石浮选分离的影响|刘诚 ...

    2021-9-3 · Mixed minerals flotation results confirm that the efficient flotation separation of apatite from calcite can be achieved using HEDP as a depressant. Zeta potential measurements indicate that HEDP can interact with both apatite and calcite surfaces.

    Chat Online
  • Frontiers | The Challenge of Tungsten Skarn Processing by ...

    The flotation separation of scheelite from fluorite, apatite, and calcite has been intensively investigated over the past decades and remains, in the twenty first century, one of the most challenging problems in the froth flotation field.

    Chat Online
  • Comments on "Nature and Structure of Adsorption Layer

    1995-8-1 · Utilization of sodium humate as selective depressants for calcite on the flotation of scheelite. Separation Science and Technology 2018, 53 ... Ca mineral contrast separation by flotation at neutral pH. Minerals Engineering 2014, 66-68 , 135-144. ... Oleate Adsorption at an Apatite Surface Studied by Ex-Situ FTIR Internal Reflection Spectroscopy.

    Chat Online
ZhengZhou N-CAI Corporation © 2020 Copyright.Crusher