Construction ceramics from ore dressing waste in …
The raw materials were the dressing tailings of copper-nickel, apatite-nepheline and iron ores with chemical compositions listed in Table 1.Earlier, the feasibility of producing high-quality ceramic construction materials from these ore dressing tailings by the compression molding process has been validated [30].The optimal component ratio in the ceramic mix was …
Enrichment factors: (a)-loparite ore dressing tails, …
It has been established that tailings of loparite ores are not suitable for biological reclamation due to low values of hygroscopic moisture (0.54–2.85%) and clay particles (17.6 ± 0.6%) and high...
Resource-saving dressing technology for apatite-nepheline …
The presence of an increased content of the useful component in screened ore is also typical for some non-metallic minerals. Thus, in the poor apatite-nepheline ores of the Oleniy Ruchei deposit ...
Petrological and geochemical constraints on the origin of apatite …
The apatite ore occurs as veins, few mm to several cm thick, spatially associated with syenite-quartz monzonite (dominant) to monzodiorite-gabbrodiorite bodies emplaced during the Atlas Jurassic-Cretaceous alkaline magmatic event. Gem-quality apatite crystals, up to 15 cm in size, are associated with albite, clinopyroxene (hedenbergite–augite ...
Phosphate Rock Beneficiation Process
Heavy medium beneficiation process of gravity separation, the specific gravity of the main gangue minerals such as calcite, dolomite and quartz in the phosphate rock is similar to that of apatite, and the heavy medium separation method is mainly used. The pollution to the environment is small, and it is good for coarse-grained phosphate rock ...
Research into phosphate mineral composition and waste …
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 ...
Conditions Affecting the Release of Heavy and Rare Earth …
In the Kola Subarctic, a mining industry has developed, which is a source of environmental pollution with heavy metals. The objects of study were the tailings of three large mining enterprises in the region: apatite-nepheline, complex and loparite ores. The geotechnical characteristics were studied, and the granulometric composition of the samples was …
Apatite enrichment by rare earth elements: A review of the …
Apatite subspecies depend on their halogen and hydroxyl content; chlorapatite, hydroxylapatite and fluorapatite, with additional substitution of other elements within the lattice such as rare earth elements (REE), sodium, strontium and manganese also possible. ... As well as being present in mineral form in ore bodies around the world and on ...
RU2168369C2
FIELD: mineral dressing. SUBSTANCE: pulp is successively treated with soda, liquid glass, sulfite-alcohol slop, collector containing mixture of acylated amino and hydroxamic acids. ... The disadvantage of this method is that it gives positive results on carbonate ore, in which dolomite and a high apatite content prevail (15-17%). With ore ...
Effect of geological origin of apatite on reverse flotation separation
In the conventional reverse flotation of apatite, phosphoric acid is the most widely used depressant in the reverse flotation of phosphate ore to depress the valuable mineral apatite (Sis and Chander, 2003). More importantly, it has been reported that crystallinity has a strong relationship with floatability; however, changes in the ...
Recovery of Apatite From Ore Slimes Using Centrifugal …
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 Box–Behnken …
Computer-Assisted Decision-Making System of Optimal …
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 electric ore …
DOI: 10.13189/ujg.2014.020701 Geochemical Characterization and Ore
Investigations were carried out for geochemical characterization of Sokoto Phosphate rock and to propose a suitable ore dressing process for the recovery of phosphate for fertilizer and allied applications. ... (OG1 and OG3), apatite content were 31.28 and 30.20% P 2 O 5 respectively, Granul... download Download free PDF View PDF chevron_right. ...
Glass-enamel coatings based on apatite-nepheline ore …
Among the promising raw materials are products from the dressing of apatite-nepheline ore from the Partamchorr (Kolar Peninsula) deposit [i, 2], which have a complex composition. Besides apatite and nepheline they contain about 20 different minerals.
MINERAL DRESSING Applicability of the Suspension …
apatite-bearing ore. It is shown that the ratio of acid–base centers of apatite surface change in interaction with ions HCO 3 −, 2 CO 3 − 2 HPO 4 −, cations Ca2+ and oleate ions in distilled water and in water after deionization to remove carbon dioxide. The change in apatite surface properties in alkaline water shows up
Researching of physicochemical and structural-phase …
obtained during complex apatite-titanomagnetite-ilmenite ore dressing. The mineral composition was analyzed and the structural and textural features of the titaniferous ore of Kropivensky deposit and the titanomagnetite concentrate obtained from it were revealed. The mechanism of solid-phase carbothermal
Apatite flotation from brazilite-apatite-magnetite ore
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.
Efficiency of dressing and acid treatment of oversize apatite
Grain-size composition of feedstock is the determinant of the apatite concentrate treatment process conditions. The article reports the results of commercial tests of the oversize apatite concentrate treatment by sulfuric and nitric acids.
Applicability of the Suspension Effect in Estimation of …
Abstract By means of determining the suspension effect, the authors studied the change in the surface properties of apatite under the action of reagents and ions present in flotation pulp during processing of apatite-bearing ore. It is shown that the ratio of acid–base centers of apatite surface change in interaction with ions HCO $$_3^-$$, CO $$_3^{2-}$$, …
The Recovery of Rare-Earth Elements from Apatite
Iron–apatite ore contains chemical elements such as C e La, Nd and Y along with mon azite ore, and of course many more minerals including magnetite, apatite, hematite, qua rtz, feldspar, and etc.
PHYSICAL AND CHEMICAL PRINCIPLES OF ORE …
Vostok-2 and Lermontov deposits are of interest as a poss~le source of raw material for obtaining an apatite product, since apatite mineralization has been found in the original ore. ... or wastes from ore dressing that have P205 concentrations adequate for recovery, if a means can be found for profitable utilization as mineral fertilizers. ...
Graphite Ore Processing
Graphite ore beneficiation includes gravity separation, flotation, and magnetic and electric separation; it is widely used in separating natural graphite, flake graphite, crystalline graphite, graphite in granite, etc.. According to the specific composition and properties of the ore, JXSC will combine multiple methods for comprehensive processing to achieve the best separation effect.
UPGRADING OF PHOSPHATE ORES – A REVIEW
when the apatite was formed and on the influence of subsequent events, such as weathering. In sedimentary deposits of marine origin, the phosphate ... A.M. Abouzeid/The Journal of ORE DRESSING ...
Research Progress in Surface Chemistry of Flotation for Apatite …
Phosphate ore is a strategic key mineral resource. China's phosphate ore reserves rank second in the world, mainly consisting of sedimentary phosphate rocks. Due to the fact that phosphate rock is an accumulation formed by exogenesis, composed of cryptocrystalline or microcrystalline apatite and other gangue minerals, and the surface wettability, surface electrical properties, …
Phosphate Ore Dressing Process
The selection of phosphate ore dressing process is mainly based on the type and properties of phosphate ore. Phosphate ore is mainly divided into apatite type, colloidal phosphorite type and sedimentary phosphate ore type.
Dressing Ways for 3 Kinds of Iron Ore Make …
Here are the powerful iron ore dressing ways, please find the one that works best for you. ... Gangue has silicate or carbonate minerals, often accompanied by pyrite, cobalt pyrite or chalcopyrite, and apatite. Generally, …
Apatite ilmenite ore dressing process
A technology of ilmenite and apatite, which is applied in the field of apatite ilmenite beneficiation technology, can solve the problems of low grade of titanium concentrate, lower price, lower quality grade of titanium concentrate, etc., and achieve the goal of improving natural resources …
(PDF) Enrichment of Apatite-Bearing Iron Ore by Magnetic …
Enrichment of Apatite-Bearing Iron Ore by Magnetic Separation and Flotation . × Close Log In. Log in with Facebook Log in with Google. or. Email. Password. Remember me on this computer ... A.M. Abouzeid, "Upgradıng of Phosphate Ores-A Review," The Journal of Ore Dressing, vol. 9, no. 17, pp. 10-32, 2007. P.V. Straaten, "Rocks for Crops ...
Mineral Liberation and Concentration Characteristics of Apatite …
The average grade of the preferred particle size interval was 3%–5% higher than the original ore. Liberation degrees of apatite less than 4 mm are above 88%, which was beneficial for mineral ...
Utilization of Apatite Ores
mixed with silica and Utilization of Apatite Orke particles of similar size. Such mixture is called the "furnace burden". A typical furnace burden has the SiO2/CaO ratio of 0.8 to 1.2 and the P2O5/C ratio of 2.3 to 2.6 [6]. Coke Electrical energy Phosphorus CO cerrophosphorus cilter dust Liquid phosphorus Solid Granulation Granule ...