phosphate ore dolomitic

Reverse flotation of sedimentary calcareous/dolomitic rock phosphate …

Key takeaway: 'Reverse anionic flotation shows promise for removing carbonates from sedimentary rock phosphate, offering an economically viable method for processing low-grade phosphate reserves.' ... Reverse flotation of sedimentary calcareous/dolomitic rock phosphate ore — an overview. M. Prasad, A. Majumder, T. Rao. Feb 1, 2000. Cite ...

Beneficiation of a High Dolomite Phosphate Ore …

Phosohate ore: High dolomitic phosphate ore was supplied by the Florida Institute of Phosphate Research (FIPR). The as-received ore sample was deslimed and screened …

Innovations in beneficiation technology for low grade phosphate …

As high grade deposits of phosphate rock are being depleted day by day in the world, future sources will be derived from low grade rocks containing various impurities. Low grade phosphate rocks are not suitable for direct use in acidulation plants unless their tricalcium phosphate (TCP) content is increased to 70% or more, using conventional …

Beneficiation of a High Dolomite Phosphate Ore

Phosohate ore: High dolomitic phosphate ore was supplied by the Florida Institute of Phosphate Research (FIPR). The as-received ore sample was deslimed and screened using 710 and 105 microns screens. The undersize material was discarded while the oversize fraction was crushed and ground, followed by desliming and screening using a …

Dissolution Kinetics of Phosphate Ore in H2SO4 Solutions

Phosphate ore particles dissolution kinetics in hydrochloric acid based on a structure-related segmented model. Powder Technology 2021, 392, 141-149. ... Preparation of magnesium hydroxide from leachate of dolomitic phosphate ore with dilute waste acid from titanium dioxide production. Hydrometallurgy 2014, 142, 137-144.

Reverse anionic flotation of dolomitic collophanite using …

2.1. Selected ore sample A phosphate mining enterprise in Guizhou, China, provided massive phosphorite. After mechanical crushing and grinding, raw ore powder with a particle size fraction of −75 μm was obtained, accounting for 57.90% of the total for flotation. Table 1 shows the chemical analysis results of raw ore products with

Reagents used in the flotation of phosphate ores: a critical …

Al Jalamid, Saudi Arabia, phosphate ore containing 40–50% carbonate, 8–10% organic matter, and 16–25% P 2 O 5 was treated by calcination at 850 °C for about 1 h, ... technical difficulties in calcining dolomitic phosphates, (3) the inferior quality properties of calcined product, and (4) high-energy consumption. ...

Beneficiation of a high dolomitic phosphate ore: A bench …

A three stage flotation scheme was employed to beneficiate a low grade, high dolomitic phosphate ore from Florida. The reagent scheme used, developed on the basis of our previous fundamental studies, consisted of oleic acid added as collector, mineral oil and ethoxylated sulfonate as co-collectors and 1, hydroxy ethylidene 1,1- diphosphonic …

Removal of ferriferous dolomite by magnetic separation …

However, in the case of Abu Tartur phosphate, which contains a dominantly ferriferous–dolomitic gangue, another technique based on high intensity, or high gradient, magnetic separation, can be used to reduce the MgO content. ... R.E., 1979. Beneficiation of Phosphate Ore. International Mineral and Chemical Corp. of Northbrook, IL, U.S. Pat ...

Double reverse flotation of a very low grade sedimentary phosphate rock

In this study, reverse flotation was applied to recover phosphate from a very low grade (5.01% of P 2 O 5) sedimentary ore.Sodium silicate, starch, tannic acid, aluminum sulfate, (Na,K)Tartarat, sodium tripolyphosphate, H 3 PO 4, and H 2 SO 4 were used as phosphate mineral depressants in acidic and alkaline conditions. Oleic acid and …

A new route for the beneficiation of low grade calcareous phosphate …

The bulk of the world's phosphate reserves is located in sedimentary horizons that contain appreciable amounts of carbonate. During beneficiation of phosphate rocks, huge amounts of oversize phosphate rocks are rejected from crushers. This reject also mostly contains low tricalcium phosphate content and high carbonate content. In …

Beneficiation of a Sedimentary Phosphate Ore by a …

In China, direct-reverse flotation is proved to be applicable to most phosphate ores. However, because the ratio of froth product is generally high, current direct-reverse technology faces challenges in terms of high reagent consumptions and cost. A new gravity and flotation combined process has been developed for the recovery of …

Dolomite flotation of high magnesium …

magnesium phosphate ore samples containing 3.3% and 1.5% MgO. The test results showed that the surfactant DP could improve dolomite flotation at low dosages, and …

Preparation of Magnesium Hydroxide from Leachate of Dolomitic Phosphate …

Xiong et al. (2014) extracted magnesium from dolomitic phosphate ore (7.67% MgO) with dilute waste acid. Operating under the optimum leaching conditions, a 98.31% recovery of Mg with 0.02% P 2 O 5 ...

Review of the Main Factors Affecting the Flotation of …

The way to successfully upgrade a phosphate ore is based on the full understanding of its mineralogy, minerals surface properties, minerals distribution and liberation. The conception of a treatment …

Beneficiation of a high dolomitic phosphate ore: A …

Abstract. A three stage flotation scheme was employed to beneficiate a low grade, high dolomitic phosphate ore from Florida. The reagent scheme used, …

Two-stage reverse flotation process for removal of

Phosphate rock contains various gangue minerals including silicates and carbonates which need to be reduced in content in order to meet the requirements of the phosphate industry. Froth flotation has become an integral part of phosphate concentration process. In this study, double reverse flotation was applied to recover …

Beneficiation of refractory rock phosphate by calcination …

Separation of refractory rock phosphate (P 2 O 5 = 11.5%) from the Dalir area, Iran, containing quartz, calcite and other impurities, by calcination and flotation processes has been successfully used to upgrade the phosphate values. Petrographic studies of this ore showed that collophanite was the major phosphate mineral and the …

ENRICHMENT OF ABU-TARTUR PHOSPHATE ORE …

In our case of using H3PO4 alone a phosphate concentrate assaying 30.1% P2O5 (at P2O5 recovery of 75.3%) and 0.75% MgO was obtained from a feed material assaying 23% P2O5 and 3.77% MgO. The ...

Flotation of dolomitic impurities from Jhamarkotra

Flotation separation of dolomite from Jhamarkotra phosphorite ore deposit in India, has been achieved using the two-stage conditioning process. An alternate process using a proprietary reagent scheme has also shown considerable promise in removal of dolomitic impurities. Hallimond cell flotation of the 65 × 100 mesh size fraction using …

Geochemical Characteristics of Dolomitic …

The primary phosphorite is a dolomitic phosphorite containing rare earth elements, which are naturally enriched by weathering, and its weathered ore has obvious residual enrichment, while the ...

Preparation of magnesium hydroxide from leachate of dolomitic phosphate

Magnesium in the form of dolomite constitutes a main impurity in sedimentary phosphate ores. Due to depletion of high-grade phosphate ore, the unexploited reserves of phosphate rock tend to contain less phosphate and more dolomitic carbonate (Zheng et al., 2001). The low-grade ores need beneficiation to be fit for subsequent processing.

Surface Electrical Behaviors of Apatite, Dolomite, …

The valuable mineral, apatite, in phosphate ore has the same lattice ion, Ca 2+, as dolomite, which results in a significant effect on the selective flotation of apatite from …

Minerals | Free Full-Text | Microdistribution and Mode of …

The REE-bearing phosphate ore body is strata-bound, ... It can be seen that, when the content of dolomitic cement in phosphate rock increases, the content of rare earth decreases. This indicates that REEs do not occur in dolomite. The siliceous components in the ore, on the one hand, contribute to the formation of clay minerals, …

Flotation of low-grade phosphate ore

A study has been conducted on the flotation concentration of sedimentary phosphorite from Sierra Espuña, in the province of Murcia (Spain), using a Denver D-12 mechanical subaeration cell. First, the mineral was pretreated through grinding, sorting and discarding slimes. The effect on flotation of pH, collector concentration, particle size and ...

Dolomite Mineral | Uses and Properties

Dolomite is a common rock-forming mineral. It is a calcium magnesium carbonate with a chemical composition of CaMg (CO 3) 2. It is the primary component of the sedimentary rock known as dolostone and the metamorphic rock known as dolomitic marble. Limestone that contains some dolomite is known as dolomitic limestone.

Optimization of flotation parameters for enhancement of

Sedimentary dolomitic phosphate ores are difficult to treat by flotation, and high-grade phosphate concentrates with high recoveries are difficult to obtain. The literature indicates that the reagents required for beneficiation of such ores are generally dictated by the nature of the gangue. In this paper, the optimum flotation parameters …

Enhancing selective calcite and dolomite flotation in …

Selective recovery of dolomite and calcite impurities in sedimentary phosphate ore. Fatty acids coupled with ethoxylated alcohols provided better flotation performance. Surface response methodology assisted in achieving satisfactory flotation …

Rare earth elements(ppm) of phosphorite.

Download scientific diagram | Rare earth elements(ppm) of phosphorite. from publication: Geochemical Characteristics of Dolomitic Phosphorite Containing Rare Earth Elements and Its Weathered Ore ...

Optimization of flotation parameters for enhancement …

phosphate from low-grade dolomitic rock phosphate ore from Jhamarkotra, India G. v. Rao and Swati Mohanty Scientists, Regional Research Laboratory, Bhubaneswar, India Abstract Sedimentary dolomitic phosphate ores are difficult to treat by flotation, and high-grade phosphate concen­ trates with high recoveries are difficult to obtain.