New Route of Utilization of Pegmatites Tailings to Application as a Ceramics Raw Materials

2015 ◽  
Vol 820 ◽  
pp. 18-23
Author(s):  
A.L. Silva ◽  
E.W.V. Sousa
Keyword(s):  
High Purity ◽  
Ceramic Industry ◽  
Raw Materials ◽  
Raw Material ◽  
Paper Pulp ◽  
Industrial Minerals ◽  
Process Route ◽  
Consumer Markets ◽  
New Process

The proposal to obtain a new route for exploitation of tailings from pegmatite emerged from the need of many companies that showed to reuse of these tailings as raw materials ceramics. The pegmatites represent a large part of available industrial minerals. These can be classified into: kaolin, feldspar, mica, quartz and metallic minerals such as tantalite / columbite and others. The consumer markets for these minerals are glassmaking, ceramic industries, paper, pulp, metallurgy, etc. Order for the product is fit for sale ceramics and metals companies must be of high purity of this raw material. Therefore, the process of separation of these minerals must be carried out as effectively as possible. In this study, surveys have been made to the development of a new process route which facilitates, an optimized manner, separation from pegmatite, concentrated in the waste process of extracting companies, so that a better product shall be passed through the ceramic industry.

The Incorporation of the Ceramic Industry Firewood Ash into Clayey Ceramic

2014 ◽  
Vol 798-799 ◽  
pp. 240-245 ◽  
Author(s):  
Leonardo Leandro dos Santos ◽  
José Elson Soares Filho ◽  
Liszandra Fernanda Araújo Campos ◽  
Heber Sivini Ferreira ◽  
Ricardo Peixoto Suassuna Dutra
Keyword(s):  
Ceramic Industry ◽  
Environmental Problem ◽  
Raw Materials ◽  
Ceramic Materials ◽  
Raw Material ◽  
Partial Replacement ◽  
Fuel Wood ◽  
Respiratory Problems ◽  
Ceramic Paste ◽  
Material Saving

Much industrial waste has mineralogical, chemical and physical characteristics similar to clays used in ceramic materials, enabling the reuse of these as raw materials in the ceramic industry. The ashes are a type of waste containing metals, which can cause air pollution, responsible for serious respiratory problems in the affected population. This study investigate the use of waste derived from the carbonization of a solid fuel (wood) in ceramic paste used for the manufacture of rustic floors, aiming its incorporation into the mix, partially replacing (lessening the environmental problem) the usage of raw material (saving clay), enabling the analysis of certain variables of sample preparation (characterization and formulation) and their influence on the final properties of the material. Results indicate that the partial replacement of clay by ash is feasible in the chemical and mineralogical aspects in the formulation of ceramic paste in the manufacturing of rustic floors.

scholarly journals PURIFICATION OF LITHIUM CARBONATE FROM SPODUMENE RAW MATERIAL FOR APPLICATION IN ENERGY STORAGE DEVICES

2021 ◽  
Vol 1 (1) ◽  
pp. 15-16
Author(s):  
Gauhar Bishimbaeva ◽  
Asem Zhanabaeva ◽  
Dinara Zhumabaeva ◽  
Araylym Nalibaeva ◽  
Erlan Abdikalykov
Keyword(s):  
Energy Storage ◽  
High Purity ◽  
Raw Materials ◽  
Lithium Carbonate ◽  
Raw Material ◽  
Efficient Technology ◽  
Energy Storage Devices ◽  
Storage Devices

An efficient technology has been developed for obtaining high-purity lithium car bonate (99.95%) from Kazakhstani spodumene raw materials

scholarly journals Sustainable Silicon and High Purity Alumina Production from Secondary Silicon and Aluminium Raw Materials through the Innovative SisAl Technology

2021 ◽  
Vol 5 (1) ◽  
pp. 85
Author(s):  
Aikaterini Toli ◽  
Georgia Maria Tsaousi ◽  
Efthymios Balomenos ◽  
Dimitrios Panias ◽  
Matthias Heuer ◽  
...  
Keyword(s):  
High Purity ◽  
Raw Materials ◽  
Lithium Ion ◽  
Raw Material ◽  
Added Value ◽  
Aluminium Chloride ◽  
Pure Aluminium ◽  
Alumina Production ◽  
Chloride Hexahydrate ◽  
Total Extraction

Calcium aluminate slag produced by the aluminothermic reduction of silica is tested as a candidate raw material for the hydrometallurgical production of pure aluminium chloride hexahydrate (ACH) through leaching with hydrochloric acid. The crystallization of ACH follows by sparging the pregnant liquor with hydrochloric gas. Almost total extraction of Al is achieved with the use of azeotropic HCl acid solution (5.9 M) at 80 °C and 1 h retention time. A pregnant liquor with approximately 20 wt% AlCl3 is produced as a base for ACH crystallization by sparging it with gaseous HCl. The ACH produced is re-dissolved and crystallized three to four times until high purity is achieved. High purity ACH acts as a precursor for producing High Purity Alumina (HPA), a high added value material used in LEDs and lithium-ion batteries and other niche applications.

scholarly journals Mineralogical characterization of clays used in the structural ceramic industry in west of S. Paulo State, Brazil

Cerâmica ◽  
2001 ◽  
Vol 47 (304) ◽  
pp. 204-207 ◽  
Author(s):  
S. R. Teixeira ◽  
S. A. de Souza ◽  
C. A. I. Moura
Keyword(s):  
Grain Size ◽  
Organic Matter ◽  
Size Distribution ◽  
Grain Size Distribution ◽  
Ceramic Industry ◽  
Raw Materials ◽  
Raw Material ◽  
Mineralogical Characterization ◽  
Paulo State ◽  
Ceramic Mass

Plasticity and the grain-size distribution of the raw material used to make structural bricks and roof tiles are very important to the production process. These two parameters and the mineral composition will define the quality and properties of the final product: color, mechanical resistance, water absorption, cracks, swell and shrink during drying and firing the ceramic pieces etc. In the Brazilian ceramic industry it is very common to mix together two or more different kinds of raw material to achieve the ceramic mass with the desired grain-size distribution. The objective of this work was to characterize the raw material collected at the floodplains of the Paraná and Paranapanema Rivers and the ceramic mass used by the ceramic industry in western São Paulo State, Brazil. Particle size distribution, organic matter and X-ray diffraction were used to study this material. The textural analysis indicates that the raw materials have the clay fraction ranging from 38.2% to 66.3%, the silt from 22.2% to 49.7% and the sand from 3.1% to 34.1%. The results indicate that all mixed raw materials have more clay in its composition than would be necessary. The organic matter ranges from 5 to 7%. All samples have kaolinite and many of them have smectites, HIV and mica. Gibbsite, iron and titanium oxides, and quartz are also identified. One of the samples (yellow) is rich in goethite.

Research of Short-Flow-Route Processes for Magnesium Alloys Prepared by Crystalline Magnesium

2011 ◽  
Vol 686 ◽  
pp. 1-5
Author(s):  
Wei Hong Li ◽  
Yuan Sheng Yang ◽  
Chang Wen Tian ◽  
Shou Qiu Tang ◽  
Ji Xue Zhou ◽  
...  
Keyword(s):  
Magnesium Alloys ◽  
Raw Materials ◽  
No Oxidation ◽  
Raw Material ◽  
Process Technology ◽  
High Quality ◽  
Inclusion Content ◽  
Evaporation Loss ◽  
New Process ◽  
Common Problems

Long route and high inclusion content are two common problems existing in the present process for magnesium alloys. To solve these problems, a new process technology, in which the crystalline magnesium is used as the raw material, is developed. The process is melting flux→ adding raw materials in batches → stirring→ holding→ pouring (MASHP). The mechanisms of protection and purification mechanisms are also analyzed. The results show that the MASHP process has high protection and purification effects on magnesium alloys. By the in-batches addition mode of raw materials, no oxidation and evaporation loss of magnesium produce during heating and melting, and the inclusions that self-contained in the crystalline magnesium and that produced by oxidation during heating and melting can be minimized. High quality magnesium alloys can be produced by the new process.

scholarly journals Resources of quartz raw materials, Gargan block, East Sayan quartzite-bearing area

Georesursy ◽  
2021 ◽  
Vol 23 (4) ◽  
pp. 96-106
Author(s):  
Alexander Fedorov ◽  
Valentina Makrygina ◽  
Anatoly Mazukabzov ◽  
Alexander Nepomnyashchikh ◽  
Dulmazhap Ayurzhanaeva ◽  
...  
Keyword(s):  
High Purity ◽  
Crystalline Silicon ◽  
Raw Materials ◽  
Optical Glass ◽  
Geological Structure ◽  
Raw Material ◽  
Rock Properties ◽  
Potential Source ◽  
Carbonate Sequence ◽  
Major Factors

The evaluation (according to structural and geochemical rock properties ) of the quartzites from the East Sayan quartzite-bearing area as a potential source of quartz raw material for crystalline silicon and optical glass manufacturing can significantly expand the forecast resources of this type of raw materials. The geological structure of the Irkut Formation, productive of high-purity quartzites is specified within the Oka-Urik, Urengenur and Urdagargan quartz-bearing areas; geological, mineralogical-petrographic and geochemical characteristics of the main quartzite types are given, the main morphological features of productive high-purity quartzite bodies are specified to predict their occurrence at depth. The major factors in the formation of high-purity quartzite bodies include: 1) quartzites are accumulated in the siliceous-carbonate sequence of the Middle Riphean Irkut Formation within a broad but isolated basin; 2) high-purity quartzite bodies are produced as a result of dynamic recrystallization due to the deformation of primary microquartzites resulting from the collision of the Dunzhugar island arc with the Gargan microcontinent margin. Within the western part of the East-Sayan quartz-bearing area, quartzite reserves as a potential source for silicon metallurgy and production of optical glass were estimated as 134 mln tons.

Large-Scale Fabrication of Ti3AlC2 Powder with High-Purity

2007 ◽  
Vol 336-338 ◽  
pp. 948-951
Author(s):  
Chang An Wang ◽  
Chun Qing Peng ◽  
Yang Song ◽  
Yong Huang
Keyword(s):  
Particle Size ◽  
High Purity ◽  
Mass Production ◽  
Large Scale ◽  
Raw Materials ◽  
Synthesis Method ◽  
Particle Size Analysis ◽  
Raw Material ◽  
Size Analysis ◽  
Sem Observation

A synthesis method of high-pure Ti3AlC2 powder with a large scale was presented as pressureless synthesis using TiC, Ti and Al powders as starting materials at 1300~1450°C in flow Ar. The different raw material scales were tested from 2 g to 1.0 kg, and the results showed that the purities of Ti3AlC2 powders could be kept around 97 wt% at different scales of raw materials. SEM observation and particle size analysis revealed that the synthesized Ti3AlC2 powders were uniform and around 5 μm in particle size. This method can be used for mass production of Ti3AlC2 powders with high-purity.

The New Methods of Deep Processing of Oil Residues in Conjunction with Shales

2014 ◽  
Vol 1079-1080 ◽  
pp. 103-109
Author(s):  
Zh.K. Kairbekov ◽  
A.S. Maloletnev ◽  
V.S. Yemelyanova ◽  
Zh.K. Myltykbaeva ◽  
B.B. Baizhomartov
Keyword(s):  
Oil Shale ◽  
Raw Materials ◽  
Raw Material ◽  
Deep Processing ◽  
New Methods ◽  
Motor Fuels ◽  
New Process ◽  
Liquid Products ◽  
Tar Oil ◽  
Middle Distillates

The results of studies on the development of a new process of thermal cracking of tar oil as a slurry with crushed oil shale to obtain components of motor fuels. The results suggest doubtless advantages of the process before the industrial of thermo cracking, since the single-stage processing of raw materials in relatively in the mild conditions (5 MPa, 425 °C, volumetric feed rate 1.0 h-1) is achieved deep destruction of tar oil (the yield petrol fraction with a bp amounts to up to 180 °C – ~12 mass % of middle distillates with a bp 180-360 °C – 43-44 mass %, of raw material for catalytic cracking of a bp 360-520 °C – ~15-16 %, based on the initial tar oil). Formed like coke products and raw materials contained in V and Ni is postponed on the mineral part of slate and removed from the reaction zone with the liquid products of the process.

scholarly journals Production cycle characteristics of high-purity quartz opencasting

2020 ◽  
pp. 14-25
Author(s):  
Kantemirov Valerii ◽  
Titov Roman ◽  
Iakovlev Andrei ◽  
Kozlova Maria
Keyword(s):  
High Purity ◽  
Raw Materials ◽  
Impurity Content ◽  
Physical And Mechanical Properties ◽  
Raw Material ◽  
Production Cycle ◽  
Mining Operations ◽  
Crystal Silicon ◽  
Quartz Veins ◽  
Technical Solutions

Introduction. Currently, the main raw material for obtaining transparent quartz glass, an indispensable component in the production of single-crystal silicon, is high-purity quartz concentrate. The concentrate is a product of grinding natural “pure” quartz, which has undergone a cycle of mechanical and deep chemical refining, with a particle size of 0.1–0.3 mm and a total impurity content of no more than 20–30 ppm. However, in nature, deposits of pure quartz are quite rare, and it means that each explored site is of particular importance and is to be developed with minimal losses of quartz raw materials. Research aim is to develop technical solutions for processing small veins of high-purity granulated quartz. Methodology. Physical and mechanical properties and mining conditions for the individual quartz veins of the Kyshtym deposit are analyzed. Production cycle solutions for opencasting quartz veins have been developed allowing to reduce the degree of quartz over-grinding. Results. Granulated quartz, due to its structure, has the property of “avalanche” destruction into small grains. This significantly reduces the yield of the conditioned fraction –400 +20 mm, and regarding small reserves of quartz in veins, on average 0.1–2 thousand tons, it raises the question as to whether the development is feasible and effective. To increase the yield of conditioned fractions of quartz raw materials, a non-explosive technology of quartz breaking is proposed with a hydraulic hammer on a hydraulic excavator in combination with quartz vein preliminary exposure from the host rocks using a special technology for blasting rocks in the contact zone of “quartz-rock”. Conclusions. The proposed technical solutions will allow to involve small quartz veins of high purity granulated quartz into the development and provide high productivity and efficiency of mining operations without significant losses of scarce raw materials.

scholarly journals Use of Ceramic Powder in Concrete - Strength & Durability Properties

2017 ◽  
Author(s):  
Kiran Kumar Poloju ◽  
Abdullah Tahir
Keyword(s):  
Compressive Strength ◽  
Ceramic Industry ◽  
Raw Materials ◽  
Concrete Strength ◽  
Ceramic Powder ◽  
Raw Material ◽  
Experimental Investigations ◽  
Ceramic Tiles ◽  
Ceramic Waste ◽  
The Cost

Ceramic wall tiles are used as building material in the field of construction. Manufacturing of ceramic tiles require different raw material like clay, potash, dolomite, feldspar, talc and different chemicals like sodium silicate, sodium tripoly, phosphate (STPP) in ceramic production. In the ceramic industry, about 15%-30% production goes as waste. These wastes poses a serious threat to the environment by polluting the habitant and agricultural lands. Therefore using of ceramic waste powder in concrete would benefit in many ways in saving energy & protecting the environment. The cost of deposition of ceramic waste in landfills will be saved. Raw materials and natural resources will be replaced. Which indirectly helps for reducing the greenhouse gas (co2).There is a large amount of carbon dioxide released in the cement production. In this research study the (OPC) cement has been replaced by ceramic waste powder accordingly in the range of 0%, 10%, 20%, 30% 40%, & 50% by weight for M-25 grade concrete. The wastes employed came from ceramic industry which is in Rusayl (Muscat, Oman) industrial area. Based on experimental investigations concerning the compressive strength of concrete, the following observations are made: (a)    The Compressive Strength of M25 grade concrete increases when the replacement of cement with ceramic waste up to 30% by weight of cement and further replacement of cement with ceramic powder decreases the compressive strength.   (b)  Concrete on 30% replacement of cement with ceramic waste, compressive strength obtained is 26.77 N/mm2and vice-versa the cost of the concrete is reduced up to 13.27% in M25 grade and hence it becomes more economical without compromising concrete strength than the standard concrete. It becomes technically and economically feasible and viable. It is the possible alternative solution of safe disposal of ceramic waste. Reuse of this kind of waste has advantages economic and environmental, reduction in the number of natural spaces employed as refuse dumps. Indirectly, all the above contributes to a better quality of life for citizens and to introduce the concept of sustainability in the construction sector.

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