apatite flotation incompatibility

"A Comparative Study of Different Columns Sizes for ...

The Brazilian phosphate industry has a long-term tradition in beneficiation of weathering igneous phosphate ores. The typical flowsheet applied involves grinding; classification in coarse and fines fractions; magnetic separation (low and high intensity); desliming to remove particles < 10 µm; barite flotation and apatite flotation. Desliming operation to discharge the ultrafine particles less ...

Mining - Nouryon

Nouryon's mining solutions focus on the flotation of calcite, iron ore, potash, phosphate and apatite, as well as additional mineral processing applications. Nouryon - a global specialty chemicals leader. Your partner in essential solutions for a sustainable future.

(PDF) Apatite Flotation from Brazilite–Apatite–Magnetite ...

Flotation selectivity of apatite with Phospholan PE65 and Аrcomon SO is determined by less yield of magnesium-containing silicates in the concentrate as compared to flotation with saponified tall oil fatty acids, though these reagents are sensibly less selective than Flotol-7,9 which yields much lower content of magnesium and silicium in the ...

Calcite-Apatite Flotation - Columbia University

pH. Interestingly, flotation at the minimum is found to increase from about 25% to 85% with increase in KNO3 from 0 to 3 x 10-2 kmo1/m3. Flotation again increases to about around pH 13. The effect of apatite supernatant on oleate flotation of

Effects of Metal Ions on the Flotation of Apatite ...

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 elucidated by solution chemistry study, zeta potential measurement, and X-ray photoelectron spectroscopy (XPS) analyses.

EFFECfS OF DISSOLVED MINERAL SPECIES ON THE ELECfRO ...

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 …

Role of Dissolved Mineral Species in Calcite-Apatite Flotation

Supernatants of apatite and even that of calcite depressed the flotation of calcite markedly in the pH range of 5 to 13. Addition of Ca(NO3)2, K2CO3, and K3PO4 also produced definite effects under various pH conditions. Apatite flotation was also affected by the mineral supernatants and by carbonate and phosphate solutions.

"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.

Fenwei Su - Retirement in Dec of 2020, and then start self ...

The significance for the apatite flotation kinetics of four variables - collector, dispersant, pulp pH and temperature - and their interactions was examined through experiments conducted according to a full factorial design. Statistical tests on phosphorus kinetic data show that collector and dispersant doses have a significant effect on ...

"Alternative Depressor for Apatite Flotation" by André ...

Recommended Citation. André Carlos Silva, Débora Nascimento Sousa, Diego Valentim Crescente Cara, Alex Malue Machado, and Elenice Maria Schons Silva, "Alternative Depressor for Apatite Flotation" in "Beneficiation of Phosphates VIII", Dr. Patrick Zhang, Florida Industrial and Phosphate Research Institute, USA Professor Jan Miller, University of Utah, USA Professor Laurindo Leal Filho, Vale ...

Different Types of Iron Ore

Oct 05, 2016· Different Types of Iron Ore. The iron minerals that are at present used as ores are hematite, magnetite, limonite, and siderite; also, occasionally ankerite, goethite, and turgite. Hematite is the most important iron ore. The iron content of the pure minerals is as follows:

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Effect of Sodium Pyrophosphate on the Reverse Flotation of ...

Jun 29, 2018· 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 ...

EXPERIMENTAL DESIGN TO OPTIMIZE BASF'S COLLECTOR ...

Nov 10, 2017· Mining Solutions Material and Methods 11 Flotation tests performance were based on the P2O5 content and apatite recovery by spectrophotometry at 420 nm. The results of the two-level factorial experiment were treated in Minitab to verify effects and optimize process conditions.

Apatite, calcium fluophosphate (Kola Peninsula ...

apatite-nepheline combination lies in the two arcs mentioned above. The smaller, and western, is of little industrial importance. The larger, and eastern, stretches for seven miles, and then continues another seven more to the north of Mt. Kuelpor, prospected in 1931. Here again apatite rock is traced for a stretch of about a mile.

Frontiers | Mineralogical and Geochemical Study on the ...

The differentiation process of ultrapotassic magmas is enigmatic and poorly understood. The Yaojiazhuang ultrapotassic complex is concentrically zoned by late-intruded syenite in the core and early emplaced clinopyroxenite in the periphery, combining a "bi-modal" lithology. Spatially, apatite and iron oxide-apatite (IOA) ores, glimmerite and pseudoleucite occur in the upper part of ...

DIRECT FLOTATION OF APATITE FROM PRIMARY ANO …

The plant uses today a two-stcp flow-sheet. The first step is a bulk flotation of apatite and dolomite using tàt­ ty acid soap as collector, rejecting sílica, followed by an acidic reversed apatite flotation using sulphuric and phos­ phoric acid to depress the apatitc. Sekhar and Jain (2006) present a recent descriplion of the Jhamarkotra ...

EP2366769A1 - Composition containing cleaning particles ...

Cleaning dental materials comprises: contacting a composition containing a carrier medium and particles based on a metal compound having a weight-average particle diameter of 1 nm to 10 mu m, with a metal or ceramic surface, which is part of a dental restoration or of an implant abutment; and moving the composition on the surface.

Beneficiation of Phosphates VIII | Proceedings ...

May 04, 2018· Follow. PDF. Conference Program, Patrick Zhang, Jan Miller, Laurindo Leal Filho, Marius Porteus, Neil Snyders, Ewan Wingate, and Guven Akdogan (Article). PDF. Surface Chemistry and Flotation Behavior of Monazite, Apatite, Ilmenite, Quartz, Rutile, and Zircon with Octanohydroxamic Acid, Corby Anderson and Josue Mushidi (Abstract and Presentation). Resource-Saving Technology …

Recovery of apatite from flotation tailings - ScienceDirect

May 19, 2011· The apatite recovery of each flotation test was calculated by Eq. (2) . (2) R ( % ) = M F x ap, F M A x ap,A × 100 where R is the apatite recovery, M A is the mass (g) fed into the column, M F is the mass (g) of the floated fraction, x ap,A is the P 2 O 5 content of the feed, and x ap,F is the P 2 O 5 content of the concentrate.

Locations of Deposits

Deposits are typically found in shales, cherts, limestone, dolomites and sandstone as well as hydrothermal veins or as chemically dissolved phosphate minerals in igneous and metamorphic rocks. One of the world's largest phosphate deposit is the Phosphoria Formation, located in southeast Idaho.

Apatite flotation using pataua palm tree oil as collector ...

Sep 01, 2019· Most apatite concentrates, essential for the fertilizer industry, are produced using froth flotation, where collectors play a pivotal role. Although vegetable oil-derived surfactants have been used for decades in flotation processes, raw materials which do not compete with human or animal nutrition deserve special attention.

Improving flotation separation of apatite from dolomite ...

Sep 01, 2020· Froth flotation is widely used as an effective method for separating apatite from dolomite. However, it is of difficulty to realize the efficient separation of apatite and dolomite using the traditional fatty acid collectors without any depressants due to their similar physicochemical properties.

Apatite - definition of apatite by The Free Dictionary

Define apatite. apatite synonyms, apatite pronunciation, apatite translation, English dictionary definition of apatite. n. 1. Any of a group of natural, variously colored calcium phosphate minerals containing fluorine, chlorine, or hydroxyl. ... and a comparative study …

Effect of sodium chloride on the selective flotation of ...

Apatite flotation in the acidic pH range, on the other hand, exhibited a maximum at pH 4. The recovery of apatite increased sharply above pH 6, and was observed to be between pH 7 and 10.5. No apatite flotation was observed between pH 5 and 6 at this level of sodium oleate addition.

The Bayan Obo (China) giant REE accumulation conundrum ...

The Bayan Obo deposit is the largest rare earth element (REE) accumulation in the world, and also an important iron and niobium resource in China (Xie et al., 2016).However, its genesis is still highly debated, largely due to pervasive post-ore modifications (Smith et al., 2015).In this deposit, the REE ores are mainly hosted in a suite of dolomite, which is divided into fine-grained and ...

Minerals | Free Full-Text | A Comparative Study of ...

The desliming operation to discharge ultrafine particles less than 20 µm prior to concentration by flotation is a common practice in phosphate ores beneficiation plants. The first industrial application for the beneficiation of the phosphate material with particle sizes <44 µm in Brazil was in the Araxá plant concentrator in the beginning of the 1980s. This work shows the ...

US20120087850A1 - Process for Obtaining Apatite ...

The present invention, named Bunge/Fosfertil process, is applicable at different lithologies of phosphate ore with carbonated-silica matrix from igneous and sedimentary sources, i.e., consists of comminutioning the ore by crushing, homogenization, milling and disliming, prior to the apatite flotation. The dislimed and milled ore pulp with solids concentration above 40%, being initialy ...

(PDF) Trace elements in magnetite from massive iron oxide ...

Trace elements in magnetite from massive iron oxide-apatite deposits indicate a combined formation by igneous and magmatic-hydrothermal processes. Download. Related Papers. Giant Kiruna-type deposits form by efficient flotation of magmatic magnetite suspensions. By Artur Deditius. The pilot knob magnetite deposit in the Proterozoic St. Francois ...

US5407080A - Apatite flotation reagent - Google Patents

This invention relates to apatite flotation reagents which can be used simultaneously with silica collectors in a coflotation process without problems of incompatibility between the apatite flotation reagent and the silica collectors. The apatite flotation reagent includes soya lecithin. The soya lecithin can be used as an apatite collector by itself or can be blended with a phosphate ester ...

Minerals | Free Full-Text | Magma Mixing Genesis of the ...

Needle-shaped apatite is widely present in the mafic enclaves (Figure 3F) and has an aspect ratio that varies between 5 and 15. It can be distinguished from the short columnar apatite (with a length to width ratio of 3–4) in normal granite and is a recognized standard mineral, suggesting magma mixing.

An Alternative Flotation Process for Apatite Concentration ...

Apatite flotation –Coarse fraction Scavenger Grade (%) P2O5 CaO Fe 2O3 SiO 2 Al2O3 26,6 37,0 3,4 19,4 4,3 Feed R P 2O5 Grade (%) P2O5 CaO Fe 2O3 SiO 2 Al2O3 65,5 32,9 42,8 2,3 11,3 6,3 Concentrate CornStarch= 300 g/t Sulphossucinate = 500 g/t pH = 11,0 Massrecovery= 28,6% P2O5recovery= 42% -85% flotation P2O5grade = 32% SiO 2grade = 7,1% ...

(PDF) Handbook of Flotation Reagents Chemistry, Theory and ...

Handbook of Flotation Reagents Chemistry, Theory and Practice: Flotation of Sulfide Ores. Serkan Gökçen. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 36 Full PDFs related to this paper. Read Paper.

Flotation of Dolomite from Apatite - MDPI

Jun 29, 2018· apatite flotation. However, large dosages of H 2SO 4 will lead to the corrosion of flotation equipment, and the production of acidic wastewater. In addition, the production of sediment (CaSO 4) could cause pipeline blocking, which cannot be appropriately resolved as …

Selective flotation of apatite from micaceous minerals ...

Sep 01, 2020· The flotation recovery obtained for phlogopite, biotite and apatite in the microflotation tests as a function of collector concentration and pH are presented in Fig. 4, Fig. 5, respectively. Great selectivity was observed with low POC concentration (2 mg.L -1 ) and could even be enhanced at higher concentrations with no detrimental effects on ...