EFFECT OF RAW MATERIAL COMPOSITION ON PELLETS PHYSICAL PROPERTIES

2018 ◽  
Author(s):  
Peter Krizan
Keyword(s):  
Physical Properties ◽  
Material Composition ◽  
Raw Material

scholarly journals Effect of composition on physical properties of food powders

2016 ◽  
Vol 30 (2) ◽  
pp. 237-243 ◽  
Author(s):  
Karolina Szulc ◽  
Andrzej Lenart
Keyword(s):  
Particle Size ◽  
Physical Properties ◽  
Bulk Density ◽  
Technological Process ◽  
Apparent Density ◽  
Significant Influence ◽  
Material Composition ◽  
Raw Material ◽  
Food Powders

Abstract The paper presents an influence of raw material composition and technological process applied on selected physical properties of food powders. Powdered multi-component nutrients were subjected to the process of mixing, agglomeration, coating, and drying. Wetting liquids ie water and a 15% water lactose solution, were used in agglomeration and coating. The analyzed food powders were characterized by differentiated physical properties, including especially: particle size, bulk density, wettability, and dispersibility. The raw material composition of the studied nutrients exerted a statistically significant influence on their physical properties. Agglomeration as well as coating of food powders caused a significant increase in particle size, decreased bulk density, increased apparent density and porosity, and deterioration in flowability in comparison with non-agglomerated nutrients.

scholarly journals Relationship between Raw Material Composition and Pellets Physical Properties

2019 ◽  
Vol 501 ◽  
pp. 012004
Author(s):  
P Križan ◽  
M Matúš ◽  
J Bábics ◽  
Ľ Šooš ◽  
J Beniak
Keyword(s):  
Physical Properties ◽  
Material Composition ◽  
Raw Material

scholarly journals SIFAT FISIK DAN MEKANIK PAPAN SEMEN DARI LIMBAH PENGGERGAJIAN BERDASARKAN UKURAN PARTIKEL DAN KOMPOSISI SEMEN

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Muhammad Aprizal Syaifudin ◽  
M Dirhamsyah ◽  
Evy Wardenaar
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Physical Properties ◽  
Water Absorption ◽  
Absorption Capacity ◽  
Material Composition ◽  
Raw Material ◽  
Cement Particle ◽  
Wood Processing ◽  
Cement Board

This study aims to examine the physical and mechanical properties of cement boards from sawing waste based on raw material composition and particle size, as well  to get the best sawing waste particle size and raw material composition according to JIS A5417-1992 standard. The research was carried out at the Wood Workshop Laboratory, Wood Technology Laboratory, Wood Processing Laboratory and PT Duta Pertiwi Nusantara Pontianak. This study uses a completely randomized factorial design (CRD) with two factors, namely factor A (Particle Size) and factor B (composition of cement). The results showed the average value of density ranged from 0.6878 to 0.8094 gr / cm3, moisture content value ranged from 6.7057 to 10.0246%, thickess swelling value ranged from 0.3996 to 0.8773%, water absorption value ranged from 27.8949 - 49.0375%, MOE ranged from 412.6563-1411.7847 kg / cm2 and MOR value ranged from 2.1529-4.5909 kg / cm2. The particle size that affects the physical properties is the value of water absorption, while the composition of the material that affects the physical properties is the density, water content, thickness development and water absorption capacity. The particle size and composition of the material which influence the mechanical properties, namely the value of the flexural firmness and fracture firmness. Based on the results of cement board testing with particle composition and cement (1:2) with particle size passing 10 mesh restrained 20 mesh yields the best physical properties of cement board that meet the standards of JIS A 5417: 1992, while none of the cement boards MOE and MOR meet the testing standards mechanical properties according to JIS A 5417: 1992.Keywords: Cement board, composition of cement, particle size, sawing waste

ZIRCAR ZIRCONIA POWDER TYPE ZYP-4.5

Alloy Digest ◽  
1989 ◽  
Vol 38 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
Yttrium Oxide ◽  
Zirconium Oxide ◽  
Raw Material ◽  
Bend Strength ◽  
Powder Metal ◽  
Zirconia Powder ◽  
Tetragonal Crystal ◽  
Powder Type

Abstract ZIRCAR ZIRCONIA POWDER TYPEZYP-4.5 is a highly reactive form of zirconium oxide stabilized in the tetragonal crystal state with added yttrium oxide. It is an excellent raw material for producing dense structural and wear resistant parts. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and bend strength as well as fracture toughness. It also includes information on powder metal forms. Filing Code: Cer-1. Producer or source: Zircar Products Inc..

Use of Sugarcane Bagasse Ashes as Raw Material in the Replacement of Fluxes for Applications on Porcelain Tile

2016 ◽  
Vol 881 ◽  
pp. 383-386 ◽  
Author(s):  
Raimundo J.S. Paranhos ◽  
Wilson Acchar ◽  
Vamberto Monteiro Silva
Keyword(s):  
Mechanical Properties ◽  
Environmental Impact ◽  
Physical Properties ◽  
Sugarcane Bagasse ◽  
Sintering Temperature ◽  
Raw Materials ◽  
Raw Material ◽  
The Cost ◽  
Potential Use ◽  
Porcelain Tile

This study evaluated the potential use of Sugarcane Bagasse Ashes (SBA) as a flux, replacing phyllite for the production of enamelled porcelain tile. The raw materials of the standard mass components and the SBA residue were characterized by testing by XRF, XRD, AG, DTA and TGA. Test samples were fabricated, assembled in lots of 3 units and sintered at temperatures of 1150 ° C to 1210 ° C. The results of the physical properties, mechanical properties and SEM of the sintered samples, showed that the formulation, G4 - in which applied 10% of SBA replacing phyllite, sintering temperature 1210 ° C showed better performance as the previously mentioned properties due to the formation of mullite crystals, meeting the prerequisites of standards for enamelled porcelain tile, while reducing the environmental impact and the cost of production.

The Experimental of Low Temperature Color Slip for Decorative on Earthenware Body

2016 ◽  
Vol 690 ◽  
pp. 282-285
Author(s):  
Soravich Mulinta
Keyword(s):  
Low Temperature ◽  
Physical Properties ◽  
Manganese Oxide ◽  
Ferric Oxide ◽  
Potassium Feldspar ◽  
Raw Material ◽  
Blue Color ◽  
X Ray ◽  
Yellow Color

The purpose of the study was to investigate the effects of dolomite body, frit and potassium feldspar on the properties of color slip for decorative method of color slip on earthen ware production. The characterization of raw material was analyzed by X-ray fluorescence (XRF). The experiment started with triaxial blend of dolomite body, frit and potassium feldspar in the defined ratio and then to painting of color slips on earthenware production. After that, firing specimens at 950 °C in oxidation atmosphere. Finally, the specimens were tested microstructure and physical properties. The results showed that the ratio of 50% dolomite body, 40% frit and 10% potassium feldspar were optimum properties for decorative on earthenware body. In color slip consisting of blue color added Cobalt oxide 1% ,Green colors added chromic oxide 10% , Gray color added manganese oxide 10% ,yellow color added stain 2225 10% and hazel color added ferric oxide 2 wt %.

STALE TAILINGS OF COPPER-CRUSTED ORES FLOTATION WITH THE POSSIBILITY OF GOLD AND SILVER SELECTIVE EXTRACTION: RESOURCE POTENTIAL ANALYSIS

2021 ◽  
Vol 27 (6) ◽  
pp. 31-39
Author(s):  
N. Medyanik ◽  
◽  
E. Leontieva ◽  
O. Mishurina ◽  
E. Mullina ◽  
...  
Keyword(s):  
Elemental Composition ◽  
Phase Analysis ◽  
Mineral Composition ◽  
Selective Extraction ◽  
Material Composition ◽  
Raw Material ◽  
Resource Potential ◽  
Flotation Tailings ◽  
Copper Pyrite ◽  
Pyrite Ores

The article analyzes the possibility and efficiency of processing stale tailings of flotation plants of the copper pyrite complex. The resource potential, material composition and technological capabilities of processing a number of technogenic objects are considered. The interrelation and influence of mineralogical and technological factors on the choice of tailings processing technology are analyzed. The results of chemical, mineral and phase analysis of stale flotation tailings of the studied pyrite ores are presented. According to the complex studies’ results, it is established that the stale flotation tailings of copper pyrite ores belong to a refractory type of geo-resources due to the high content of pyrite and low, at the level of ppm, gold and silver content, which are present mainly in the “resistant” minerals - chalcogenides, sulphides, their intergrowths. The article presents a factor analysis and conditions for the elemental composition of tailings formation: mineralogical, technological and environmental. The territorial accessibility and technological capability of the investigated technogenic formations are analyzed. In the course of experimental studies, the elemental composition of stale tailings has been revealed - the main components of which are: iron, sulfur, silicon and aluminum. According to the results of X-ray phase analysis, it has been found that the main ore mineral of the tailings is pyrite. At the same time, it is noted that the main share of gold in the stale flotation tailings is presented in the form of sulphides in the form of finely dispersed and isomorphic inclusions. The heterogeneous morphometric and mineral composition of sulphide aggregates, their difficult opening and high dispersion characterize stale tailings as a raw material that is difficult to float. The revealed features of the material composition of stale tails indicate the impossibility of extracting valuable components (gold and silver) from this resource using existing traditional technologies. It has been proved that it is possible to effectively extract precious metals from this category of raw materials only after their deep opening by chemical processing. The relevance of the research lies in the need to process gold-containing man-made waste in order to significantly expand the raw material base of mining enterprises, as well as to improve the ecological situation of the city-forming mining enterprises of the South Urals. The aim of the research is to study the material composition of stale tailings and develop a technology for selective extraction of gold and silver. The object of research is the stale flotation tailings of copper-pyrite enterprises of the Southern Urals. The subject is the mineral composition, the content of useful components of lying tailings and the technology of gold and silver selective extraction from them. Material and research methods. During the experiments, a set of physicochemical and chemical methods of analysis has been used: thermodynamic analysis, synchronous thermal analysis using a combined thermal analyzer of the Netzsch STA 449 F3 Jupiter brand, UV spectroscopy with an automated data processing system), qualitative chemical and assay analyzes

Ceramics

1998 ◽  
Author(s):  
Norman Herz ◽  
Ervan G. Garrison
Keyword(s):  
Physical Properties ◽  
Raw Materials ◽  
General Term ◽  
Raw Material ◽  
Petrographic Analysis ◽  
Ceramic Product ◽  
Primary Interest ◽  
Archaeological Ceramics ◽  
Ethnographic Studies ◽  
Insight Into

Archaeological ceramics refers to products made primarily of clay and containing variable amounts of lithic and other materials as well. The term ceramic is derived from the Greek keramos, which has been translated as "earthenware" or "burned stuff." Ceramics include products that have been fired, primarily pottery but also brick, tile, glass, plaster, and cement as well. Since pottery is by far the most important archaeologically, and the methods of sampling and study are largely applicable to the others, this chapter is devoted primarily to pottery. Pottery then is the general term used here for artifacts made entirely or largely of clay and hardened by heat. Today, a distinction is sometimes made between pottery, applied to lower-quality ceramic wares, and the higher-grade product porcelain. No such distinction will be made here, so the term pottery alone will be used. Raw material that goes into the making of a pot includes primarily clay, but also varying amounts of temper, which is added to make the material more manageable and to help preserve the worked shape of the pot during firing. Of primary interest in ceramic studies are 1. the nature and the source of the raw materials—clays, temper, and slip (applied surface pigment)—and a reconstruction of the working methods of ancient potters; 2. the physical properties of the raw materials, from their preparation as a clay-temper body through their transformations during manufacture into a final ceramic product; 3. the nature of the chemical and mineral reactions that take place during firing as a clue to the technology available to the potter; and 4. the uses, provenance, and trade of the wares produced. Much of the information needed to answer these questions is available through standard geochemical and petrographic analysis of ceramic artifacts. Insight into the working methods of ancient potters also has been obtained through ethnographic studies of cultures where, because of isolation or conservative traditions or both, ancient methods have been preserved.

scholarly journals Synthesis and Biological Application of Polylactic Acid

Molecules ◽  
2020 ◽  
Vol 25 (21) ◽  
pp. 5023
Author(s):  
Ge Li ◽  
Menghui Zhao ◽  
Fei Xu ◽  
Bo Yang ◽  
Xiangyu Li ◽  
...  
Keyword(s):  
Physical Properties ◽  
Polylactic Acid ◽  
Biomedical Applications ◽  
Raw Materials ◽  
Raw Material ◽  
Biomedical Materials ◽  
Biomedical Material ◽  
Sugar Fermentation ◽  
Low Toxicity ◽  
Good Biocompatibility

Over the past few decades, with the development of science and technology, the field of biomedicine has rapidly developed, especially with respect to biomedical materials. Low toxicity and good biocompatibility have always been key targets in the development and application of biomedical materials. As a degradable and environmentally friendly polymer, polylactic acid, also known as polylactide, is favored by researchers and has been used as a commercial material in various studies. Lactic acid, as a synthetic raw material of polylactic acid, can only be obtained by sugar fermentation. Good biocompatibility and biodegradability have led it to be approved by the U.S. Food and Drug Administration (FDA) as a biomedical material. Polylactic acid has good physical properties, and its modification can optimize its properties to a certain extent. Polylactic acid blocks and blends play significant roles in drug delivery, implants, and tissue engineering to great effect. This article describes the synthesis of polylactic acid (PLA) and its raw materials, physical properties, degradation, modification, and applications in the field of biomedicine. It aims to contribute to the important knowledge and development of PLA in biomedical applications.

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