Ore useful substance is a phosphorus-bearing mineral that by the element chemical composition corresponds to fluorocarbon-hydroxyl-apatite with the dominant content of Ca (45.23%), P (15.67%), and ...

Abstract Some multilevel decision-making algorithms have been developed to provide optimal control over the energy and resource efficiency and environmental safety of a chemical energotechnological system designed for processing apatite–nepheline ore wastes and composed of a grinder, a granulator, a roasting conveyor machine, and an …

crystalline apatite. using aliphatic carboxylic type of collectors (oleic acid, tal oil). Pamplin and Swainson ( 10 ) gave the early ore dressing practices for the pebble phosphate Florida. It was found that the crystalline apatite ( igneous ) could be floated with a fatty acid or its salt alone, but not the collophane of phosphorite.

The beneficiation process has been successfully applied to the ore dressing industry production of magmatic rock type apatite and sedimentary metamorphic apatite ore. The Jiangsu Jinping Phosphate ore dressing plant is a typical example. Sedimentary silico-calcium (calcium-silica) phosphate rock is recognized as a refractory phosphate rock in ...

apatite ore treatment of current situations were explained. Chapter 2. Leaching of Rare Earth Elements from an Apatite Ore using Mineral Acids This chapter is discussed an effective process for dissolution of REEs from apatite ore (TREO 15 wt.%) using minerals acids such as nitric, hydrochlor ic and sulphuric acids. In order to optimize the

Previously, we carried out studies of different-age tailings of loparite ore dressing [17][18] [19]. The geotechnical characteristics of the selected samples have been determined and their ...

The phosphate ore dressing process mainly includes scabbing-stripping, flotation, and heavy medium dressing. In 2018, the national average recovery rate was 86.1%, among which the ... Apatite in V-Ti magnetite ore is a kind of …

In this study, enrichment possibility of apatite-bearing iron ore sample was investigated to obtain iron and phosphate concentrate, separately. It was determined that the raw ore contains 35.75% ...

The aim of this study is to determine the feasibility of using a centrifugal heavy medium separation (CHMS) method to obtain apatite concentrates from ore slimes (particle size < 45 µm, 4.5% P2O5). The effects of the specific gravity, centrifugal speed, and time on the P2O5 content of the product and its recovery were investigated based on the …

Apatite is the main source of phosphorous for the making of chemical fertilizers. While apatite is usually recovered from phosphate orebodies as the primary product of a mining exploitation, this paper documents the approach taken to produce a phosphate concentrate as a secondary product from the tailings of a niobium ore …

The present invention discloses a monazite and apatite paragenetic ore enrichment method. High-grade and high-recovery-rate monazite concentrate can be obtained by adopting the method through steps of ore grinding, floatation, magnetic separation and low-acid advanced leaching treatment and re-floatation. In this process, the applicable range …

In 2022, the apatite ore production volume reached approximately 2.5 million metric tons in Vietnam. Compared to the year before, the production volume of apatite ore decreased slightly in 2022.

Abstract. The article reports research findings on flotation of apatite from brazilite-apatite-magnetite ore by domestic and foreign manufacture reagents. The agents Phospholan PE65 and Arcomon SO exhibit higher selectivity as compared to saponified tall oil fatty acids. Download to read the full article text.

The crystalline form of apatite, the natural brittleness of the mineral will contribute to the primary destruction of the mineral during ore grinding and the concentration of apatite in smaller grades. According to MLA data, 32.78% of the mineral in ore is distributed into free particles, 22.29% into binary and 44.92% into polymineral intergrowth.

The operating and promising apatite deposits in the Murmansk Region, holding 70% of Russia's phosphate ore reserves being unique feedstock for the production of mineral fertilizers are reviewed. The causes of reduction in P2O5 content of produced ore, which lead to higher cost of concentrate production and to increased volume of waste, …

The invention belongs to technical field of beneficiation, provide a kind of four product ore-dressing technique of apatite vanadium titano-magnetite, including three sections of broken process, first segment rod milling and spiral classifier is closed circuit, the sub- technique of magnetic separation, desiliconization reverse flotation, dephosphorization reverse …

The example of apatite-nepheline ores of the Oleniy Ruchey deposit is used to demonstrate the environmental and process-design advantages of the technology that envisages the …

Apatite concentrate and effluent are treated with sulfuric acid hydrolyzing salts. Plant stocks are settled and water is conditioned by reacting with a strongly basic anion exchanger in carbonate form to a sulfate ion content of 50–90 mg / l, a carbonate equilibrium of 1–1.1 and a pH of 9.9-10.2. The treated water is transferred to grinding ...

Phosphate rock is an important mineral commodity used in the chemical industry and production of food. The first section of ninth chapter of this book introduces utilization of apatite ores for manufacturing of phosphorus. The second part deals with production of phosphoric acid via wet and thermal process and utilization of byproducts …

Ore dressing are the most energy-consuming processes. Therefore, the intensification of the grinding processes is a huge duty. An approach to overcome this challenge is a ... Distribution of apatite aggregate in phosphorus-bearing ore (MLA) According to microprobe analysis, apatite belongs to the fluorine-containing type, the

Due to the lower raw ore grade of phosphate rock, the mining and dressing costs are generally higher in China than that in other countries [8], [9], [10]. In pursuit of short–term benefits, some unreasonable mining methods resulted in a serious waste of phosphate ore resources and environmental pollution.

Luminescence excited by laser is implicable in all stages of geological survey from search prospecting stage up to exploration including the development of …

position of some apatite-nephel%ne ore dressing products* are given in Table i. All of these materils, produced on a commercial scale, have constant chemical and mineralogical composi- tions. To ascertain whether producing energy- and resource-saving ecologically clean composi- tions can be produced we studied the following cross section of the ...

Apatite (Ca5(PO4)3(F,Cl,OH)) is the main source of phosphorous for the making of chemical fertilizers as discussed in [1]. Apatite is usually recovered from sedimentary orebodies and/or from igneous orebodies [2–5]. The ore processing scheme for igneous orebodies is conventional and consists of grinding followed by flotation [2,6].

The present invention discloses a monazite and apatite paragenetic ore enrichment method. High-grade and high-recovery-rate monazite concentrate can be obtained by adopting the method through steps of ore grinding, floatation, magnetic separation and low-acid advanced leaching treatment and re-floatation. In this process, the applicable range …

The main minerals of the sample are nepheline, apatite, feldspars and pyroxenes, totaling. 81.13 %. The ore contains low content (1 to 4%) of mica, natrolite, cancrinite, sphene, …

DRESSING Comprehensive Utilization of the Far Eastern Apatite-Containing Raw Materials T. N. Aleksandrovaa, N. M. Litvinovab, M. A. Gurmanb, and A. V. Aleksandrovb ...

2.2.3.2 Flotation. There are many citations in literature on the reduction of phosphorus in iron ore through anionic flotation, using a fatty acid as collector and sodium silicate as a depressant of iron oxides, when the mainphosphorus-bearing mineral is apatite (Ranjbar, 2002 RANJBAR, M. Dephosphorization of iranian iron oxide fines by flotation.. Erzmetall, …

The invention belongs to technical field of beneficiation, provide a kind of three product ore-dressing technique of apatite vanadium titano-magnetite, including three sections of broken process, first segment rod milling and spiral classifier is closed circuit, the sub- technique of magnetic separation, desiliconization reverse flotation, dephosphorization reverse …

Abstract—The morphology and spread of micro- and nano-formations on the surface of apatite and shtaffelite ore minerals (apatite, shtaffelite and calcite) due to adsorption of fatty-acid collecting agents have been studied using the methods of optical, laser …