Production from Apatite-Nepheline Ore Waste
The apatite-nepheline ore waste processing plant discussed in this paper is a complex chemical and energy technology system (CETS). It comprises three successively arranged process units: a granulator, a conveyor type multi-chamber calcining machine, (CTMCM), and an ore thermal furnace (OTF) [8]. The control of the CETS requires forming a complex
Energy and Resource Efficiency in Apatite-Nepheline …
Energy and Resource E ciency in Apatite-Nepheline Ore Waste Processing Using the Digital Twin Approach Maksim Dli 1, Andrei Puchkov 1,*, Valery Meshalkin 2, ... recourse e ciency technology assessment of phosphorus production from apatite-nepheline ore waste. The problem with their processing is acute in the regions of the Russian Arctic shelf ...
Mineralogical and Technological Aspects of Phosphate …
The object of the study was apatite-nepheline ore of the Khibiny deposits group (Russia) and phosphate ore of the Abu-Tartur deposit (Egypt). For the development of ... Mineralogical and Technological Aspects of Phosphate Ore Processing 61. To determine the optimal processing scheme for ANO and PO, samples with a
METHOD FOR PROCESSING NEPHELIN ORE
RU2002125623A - METHOD FOR PROCESSING NEPHELIN ORE - Google Patents METHOD FOR PROCESSING NEPHELIN ORE Info Publication number RU2002125623A ... ore processing mixture nephelin nepheline Prior art date Application number RU2002125623/15A Other languages Russian (ru)
Processing of Nepheline Syenite
Sintering the ore with limestone is the conventional processing method for nepheline. The sintering process has significant disadvantages, such as a high energy consumption, high capital costs, and high atmospheric emissions [3,4]. In the sintering technology, the processing of 2 tonnes of nepheline produces about 3 million tonnes of waste
Optimization of the Temperature Regime of Phosphorite …
Abstract The article examines the scientific and practical problem of increasing the energy and resource efficiency of chemical and technological processes to produce phosphorite pellets from waste apatite–nepheline ores. A promising way to solve this problem is to find the optimal temperature regime for heating the charge in a roasting conveyor machine. The …
Energy and Resource Efficiency in Apatite-Nepheline …
An example is the processing of apatite-nepheline ore waste, which accumulates in huge quantities in the tailing dumps of mining and processing plants and poses a significant environmental hazard to the adjacent territories. One of the directions for processing apatite-nepheline ore waste is the production of yellow phosphorus from them [4].
Preparation of Al2O3 from the Nepheline Ore of Nanjiang …
Crystalline alumina samples with Al2O3 content of 95.23 wt.% were prepared directly from the nepheline ore in Nanjiang county, Sichuan province of China. Four steps were involved in the experiment of alumina preparation, including calcination, dissolution, carbonation and re-calcination. Lime was used in the calcination process with the nepheline concentrates …
Resource-Saving Technology for Nepheline Concentrate
The article describes the lab-scale tests aimed at development of an efficient technology for nepheline concentrate production from high-silica nepheline-bearing raw …
Chapter 2. Production and Processing of Aluminum
In Russia, due to a lack of bauxite, a process using nepheline as feed-stock has been used to produce alumina. Essentially the technique consists of sintering a nepheline ore, or …
Nepheline Syenite—An Alternative Source for Potassium …
Complex processing of non-bauxite ores for obtainment of aluminium and alumina with the production of amorphous silica, silicon, and other useful components was developed by Rimkevich et al. . A complete process of extraction and purification of the potassium salt from the nepheline syenite has been studied.
Efficiency of Nepheline Ore Processing for Alumina …
The said technology allows the wasteless utilization of nepheline to produce alumina, soda, potash, potassium sulphate and chloride, portland cement and gallium without polluting the …
Energy and Resource Efficiency in Apatite-Nepheline Ore …
An example is the processing of apatite-nepheline ore waste, which accumulates in huge. quantities in the tailing dumps of mining and processing plants and poses a significant environmental.
Modeling of apatite-nepheline ore drawing in sublevel …
The process of modeling ore drawing was implemented in a discrete environment. Values have been determined for the lateral losses in the ridges between the drill haulage workings and the frontal ...
NEPHELINE ORE PROCESSING METHOD Russian patent …
FIELD: mining industry. SUBSTANCE: method concerning hydrochemical processing of alumina-containing raw material comprises providing nepheline-limestone-soda blend and caking it followed by leaching, desiliconization, and carbonization of aluminate solution to produce alumina, soda products, and potassium sulfate. Novelty resides in adding chamotte refractory brick …
Intelligent Model of Integrated Technological System for Ore …
DOI: 10.1134/s1054661824700391 Corpus ID: 273434670; Intelligent Model of Integrated Technological System for Ore Waste Processing @article{Dli2024IntelligentMO, title={Intelligent Model of Integrated Technological System for Ore Waste Processing}, author={Maxim I. …
The Process Of Nepheline
Nepheline Crushing Plant the process of nepheline nepheline beneficiation process supplier Nepheline Mining Crusher Manufacturers kyanite nepheline syenite processing equipment Syenite Crusher production line nepheline syenite processing equipment Syenite is a coarse grained intrusive ... Pyrite ore separation process; Manganese Ore; Chrome ore ...
CN100560214C
The invention discloses a kind of process of iron removal of nepheline ore by strong magnetic concentration, belong to the ore processing and treating method, be particularly related to and a kind of the process that dry method and wet method are carried out the high intensity magnetic separation deironing carried out in the nepheline ore deposit, the present invention is in order …
NEPHELINE ORE PROCESSING METHOD Russian patent …
FIELD: mining industry. SUBSTANCE: calcination method for processing of nepheline ores comprises providing nepheline/lime/soda blend and calcination thereof followed by leaching, desiliconization, and carbonization of aluminate solution to produce alumina, sodium products, and potassium sulfate. When preparing nepheline/lime/soda blend, 0.15-0.41% of aluminum …
Optimizing reagent regime in apatite-nepheline ore processing
The raw materials were nepheline concentrate and silica gel, which are products of the processing of apatite-nepheline ore. Directly before the synthesis of low-modulus zeolites, the morphology ...
Optimizing reagent regime in apatite–nepheline ore processing
An experimental and theoretical approach to the assessment of the specific surface of apatite-nepheline ore in the process of grinding. 15th International Multidisciplinary Scientific GeoConference SGEM2015. 2015.
Chapter 2. Production and Processing of Aluminum
produce Portland cement in a second calcination step. Processing about 4–4.5 tonnes of nepheline ore yields 1 tonne of alumina, 9–11 tonnes of cement, 0.6–0.8 tonnes of soda ash, and 0.2–0.3 tonnes of potash. According to the grade of the bauxite ore, 2–3 tonnes of ore yield one tonne of alumina and about one tonne of red mud (dry ...
Alumina Production Process from Nepheline Ore in …
ABSTRACT: Razgah nepheline-bearing ore deposit is a promising source of alumina in Iran. The VAMI (Russian Aluminium-Magnesium Institute) studies on Razgah representative samples …
Intelligent Control System Architecture for Phosphorus …
Conclusions It was found that the amounts of technogenic wastes from apatite-nepheline ore processing at mining-and-processing integrated works are large and cause significant environmental damage. It was stated that, in view of the rich chemical and mineralogical composition of such technogenic deposits, it is expedient to recycle them, and it ...
Decrease of Heat Consumption at Nepheline Processing to …
The technological and heat engineering substantiation for a new process arrangement for nepheline production using the sintering process is presented. In this process desilication of aluminate liquor and evaporation of a soda liquor is combined in one stage. ... «Efficiency of nepheline ore processing for alumina production», Light Metals ...
Indonesian Journal of Science & Technology Products of …
ore is in demand on the world market, as it is a high-quality raw material for the production of phosphate fertilizers, and the products of its processing are a promising resource of valuable components (Ponomareva et al., 2021). The composition of apatite-nepheline ore …
Products of Apatite-Nepheline Ore Processing in the …
The raw materials were nepheline concentrate and silica gel, which are products of the processing of apatite-nepheline ore. Directly before the synthesis of low-modulus zeolites, the morphology, chemical composition, and particle size of the starting materials were analyzed. The optimal parameters for sample preparation and purification of the ...
Characterization and Beneficiation of an Egyptian …
ore for Alumina production. Experiments were carried out up to the semipilot scale. e process involves crushing and grinding of a mixture of nepheline syenite ore and limestoneinacertainratio,sinteringthegroundmaterial, crushing and grinding the sinter product, digesting the ground sinter powder, ltering the slurry, desilicating the
Apatite–nepheline ore mill tailings – A source of functional …
The modern scheme of apatite–nepheline ore beneficiation is aimed at the extraction of apatite and partially nepheline. The remaining minerals are practically lost due to the lack of demand and, therefore, are stored in vast tailings dumps which worsen the ecological situation. Among the unused minerals, the practical interest is drawn by calcium titanosilicate— sphene …