PRODUCTION OF COMPOSITE CEMENT BASED ON INDUSTRIAL WASTE

2021 ◽  
pp. 38-45
Author(s):  
Ж. Т. Айменов ◽  
А. Ж. Айменов ◽  
Н. Б. Сарсенбаев ◽  
Б. К. Сарсенбаев
Keyword(s):  
Chemical Composition ◽  
Structure Formation ◽  
Industrial Waste ◽  
Mineralogical Composition ◽  
Carbonate Content ◽  
Thermal Methods ◽  
X Ray ◽  
Physicochemical Processes ◽  
Modern Methods ◽  
Composite Cements

Проведены исследования физико-химических процессов структурообразования композиционных цементов с добавкой отходов обогащения полиметаллических руд современными методами. Были определены минералогический состав, химический состав с использованием рентгенофазового, микроскопического, дифференциально-термического методов анализа. Это позволило установить, что содержание карбонатов в отходах обогащения полиметаллических руд до 30% не понизило прочности образцов. Investigations of the physicochemical processes of structure formation of composite cements with the addition of wastes of concentration of polymetallic ores by modern methods have been carried out. The mineralogical composition, chemical composition were determined using X-ray phase, microscopic, differential thermal methods of analysis. This made it possible to establish that the carbonate content in the wastes of enrichment of polymetallic ores up to 30% did not reduce the strength of the samples.

scholarly journals Geochemistry and Mineralogy of Ice-Dammed Lake Sediments of the Lębork Deposit

2021 ◽  
Author(s):  
Radosław Rogoziński ◽  
Alina Maciejewska
Keyword(s):  
Chemical Composition ◽  
Lake Sediments ◽  
Inductively Coupled Plasma ◽  
Mineralogical Composition ◽  
Raw Material ◽  
Element Analysis ◽  
X Ray ◽  
Dominant Component ◽  
Clay Deposits ◽  
Dammed Lake

AbstractVarved clay deposits from ice-dammed lakes are a particularly important and broadly applied raw material used for the production of high-quality ceramics (red bricks, roof tiles, etc.), but the mineralogy and geochemistry of these sediments are not fully understood. The aim of the present study was to determine the chemical and mineralogical composition of ice-dammed lake sediments of the Lębork deposit. Major-element analysis of the compositions of selected samples from the ice-dammed lake clays was performed by X-ray fluorescence (XRF) and trace elements were determined by inductively coupled plasma-mass spectrometry. The mineralogical composition of clay samples was determined by X-ray diffraction (XRD). Analyses of the chemical composition of the ice-dammed lake clays of the Lębork deposit showed that the dominant component was SiO2 with a mean content of 56.13 wt.%; the second most abundant component was Al2O3, with a mean content for the entire deposit of 11.61 wt.%. Analysis by ICP-MS indicated the presence of rare earth elements (REE), e.g. cerium, neodymium, lanthanum, and praseodymium; their mean contents are: 56.9, 27.0, 26.3, and 7.3 ppm, respectively. Mineralogical analysis of the varved clays identified quartz, muscovite, calcite, and clay minerals – illite, kaolinite, and montmorillonite. The material filling the Lębork basin is characterized by small lateral and vertical variability in chemical composition. The results of the present study may be of considerable importance in determining the parent igneous, metamorphic, and sedimentary rocks, the weathering products of which supplied material to the ice-dammed lake, as well as in determining the mechanisms and character of the sedimentation process itself.

scholarly journals MODERN METHODS OF INVESTIGATION PHASE AND ELEMENTAL COMPOSITION OF THE CORE

2013 ◽  
pp. 151-154
Author(s):  
M. Smirny ◽  
M. Epishev
Keyword(s):  
Shale Gas ◽  
Mineralogical Composition ◽  
Optimization Techniques ◽  
X Ray Diffraction ◽  
X Ray ◽  
Design And Optimization ◽  
Reservoir Rocks ◽  
The Core ◽  
Modern Methods ◽  
Methods Of Treatment

Successful problem solving design and optimization techniques hydrocarbon largely depends on the mineralogical composition of reservoir rocks. It mineralogical composition directly determines the applicability of certain methods of treatment reagent wells are needed, such as shale gas. In this article we have shown excellence and effectiveness of the X-ray diffraction analysis in combination with elemental analysis for problems of geological services.   

scholarly journals THE POSSIBILITIES OF USING LOESS CLAY OF KATTABOG DEPOSIT IN THE PRODUCTION OF CERAMIC PRODUCTS

2020 ◽  
pp. 27-30
Keyword(s):  
Mineralogical Composition ◽  
Physicochemical Analysis ◽  
Raw Material ◽  
Electron Microscopic ◽  
X Ray ◽  
Research Results ◽  
Methods Of Analysis ◽  
Modern Methods ◽  
Technical Properties

The aim of the research was to determine the properties of loess clay in Kattabog deposit (Uzbekistan) to identify possible areas of use. Modern methods of physicochemical analysis are used: spectroscopic, x-ray phase, electron microscopic methods of analysis. The research results showed that the main phases of clay are hydromica, quartz, kaolinite, calcite and orthoclase. Based on the research, it can be stated that the clay of Kattabog deposit has good physical and technical properties and mineralogical composition, which is a valuable raw material for the production of various ceramics, bricks, tiles, majolica and other products.

scholarly journals Research of the Chemical Composition of Industrial Waste of the Kadamzhay Antimony Combine

2020 ◽  
Vol 6 (12) ◽  
pp. 73-78
Author(s):  
N. Erkinbaeva ◽  
Y. Tashpolotov ◽  
E. Ysmanov
Keyword(s):  
Chemical Composition ◽  
Industrial Waste ◽  
Toxic Elements ◽  
Chemical Elements ◽  
New Products ◽  
Atomic Emission ◽  
Waste Dump ◽  
X Ray ◽  
Fluorescence Methods ◽  
Titanium Vanadium

This article investigates the chemical composition of industrial waste (dump slag and flotation tailings). This study, in contrast to previous studies, was carried out by chemical, atomic emission, X-ray fluorescence methods. Valuable rare earth chemical elements (ytterbium, yttrium, lanthanum, scandium), valuable chemical elements (antimony, titanium, vanadium, tungsten, niobium, indium, germanium, gallium, tantalum, molybdenum, strontium, beryllium, zirconium, cobalt) and others have been determined. The oxides of elements (SiO2, Al2O3, MgO, CaO, Fe2O3, Na2O, K2O, S, FeO) have been investigated. Toxic elements (arsenic, cadmium, tin, lead). These studies were carried out with the aim of using man-made waste in various sectors of the national economy for the disposal of man-made waste and to improve the environmental situation in the region and reduce material costs for the production of new products.

The Development and Characterisation of Porous Clay - Precipitated Calcium Carbonate

2016 ◽  
Vol 694 ◽  
pp. 189-194 ◽  
Author(s):  
Y. Yasmin ◽  
M.N. Mazlee ◽  
A.H. Norzilah ◽  
J.B. Shamsul ◽  
Rahmat Azmi ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Calcium Carbonate ◽  
Chemical Composition ◽  
Mineralogical Composition ◽  
High Specific Surface Area ◽  
Ceramic Foam ◽  
High Porosity ◽  
Sintering Process ◽  
Precipitated Calcium Carbonate ◽  
X Ray

Ceramic foams, a porous material with a gyroid structures, are becoming highly demanded for various applications such as heat insulation, bone implantation and filtration, because of their unique properties such as high specific surface area, high porosity and low heat transfer rate. In this study, the development of ceramic foam utilised white clay with a combination of precipitated calcium carbonate (PCC). The ceramic foam was successfully developed using this combination after the sample was sintered at 1250 °C for 2 hours holding time. The various compositions of PCC (10.0, 12.5, 15.0, 17.5, 20.0, 22.5 and 25.0 wt.%) affected the chemical composition and compressive strength of the ceramic foam. The chemical composition of ceramic foam was analysed by using X -ray fluorescence (XRF) and the result indicated that the PCC was successfully transformed into calcium oxide (CaO) after the sintering process. The mineralogical composition of the ceramic foam was evaluated using X-ray diffraction (XRD) and has shown the presence of mullite (3Al2O3.2SiO2), gehlenite (Ca2Al2SiO7) and anorthite (2CaAl2Si2O8) after the sintering process. The scanning electron microscope (SEM) analysis showed that the presence of porosity on the strut of the ceramic foam. Meanwhile, the compressive strength of the ceramic foam increased from 0.03 to 1.31 MPa, which is directly proportional to the increased amount of PCC.

scholarly journals Corpus Asher-Greve. Dealing with "Data form the Past"

2020 ◽  
Vol 2 ◽  
Author(s):  
Nicole Gäumann
Keyword(s):  
Chemical Composition ◽  
Mineralogical Composition ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
X Ray ◽  
Archaeological Data ◽  
The Past ◽  
Data Form ◽  
Powder Samples ◽  
Cylinder Seals

SNF-Project (1.722-0.83): Naturwissenschaftliche und typologische Untersuchungen an Rollsiegeln. When?         1983-1986 Who?           Dr. Julia Asher-Greve and Prof. Dr. Willem Stern, University of Basel Material?     1017 cylinder seals from Mesopotamia and neighbouring regions covering all periods from Uruk to Achaemenid period. What? XRD (X-ray diffraction) -> mineralogical composition EDXRF (energy dispersive X-ray fluorescence) -> chemical composition Iconographical typology Project couldn’t be brought to an end, data not interpreted   PhD-Project based on the corpus and analyses of the project Asher-Greve When?         2017-2020 (?) Who?           Nicole Gäumann Material?     Same What? Interpretation of XRD- and EDXRF from previous project Further analyses on existing powder samples (?) Typology Bringing together the results of the material analyses and the archaeological data, the material ought to be interpreted in terms of connections between material, colour, dating, provenance, theme, owner…  

Influence of Bottom Ashes from Biomass on Compressive Strength of Concretes

2019 ◽  
Vol 972 ◽  
pp. 3-9
Author(s):  
Malgorzata Ulewicz ◽  
Jakub Jura
Keyword(s):  
Electron Microscopy ◽  
Compressive Strength ◽  
Chemical Composition ◽  
Industrial Waste ◽  
Raw Materials ◽  
Bottom Ash ◽  
Waste Materials ◽  
X Ray ◽  
Natural Aggregates ◽  
Fluorescence Spectrometer

The preliminary results of utilization of bottom ash from combustion of biomass for the produce of concrete has been presented. Currently, this waste are deposited in industrial waste landfills. The chemical composition of waste materials was determined using X-ray fluorescence (spectrometer ARL Advant 'XP). Concrete were made using CEM I 42.5 R (Cemex) and sand - gravel mix aggregate. The obtained concrete were subjected to microscopic examination (LEO Electron Microscopy Ltd.) and their compressive strength (PN-EN-196-1) and absorbability (PN-85/B-04500) were identified. The obtained results showed, the replacement of the natural aggregates by bottom ash from combustion of biomass reduce consumption of raw materials and will have a good influence on the environment.

scholarly journals MINERALOGICAL COMPOSITION, STRUCTURE AND LITHOLYSIS OF URATE URINARY STONES FOR PATIENTS OF IVANOVO REGION

2020 ◽  
Vol 63 (9) ◽  
pp. 93-100
Author(s):  
Pavel R. Smirnov ◽  
Ulyana S. Serdyutskaya ◽  
Alexander I. Strelnikov ◽  
Tatyana M. Moryganova ◽  
Sofiya V. Gusakova
Keyword(s):  
Uric Acid ◽  
Chemical Composition ◽  
Surface Composition ◽  
Chemical Elements ◽  
Mineralogical Composition ◽  
Urinary Stones ◽  
Appreciable Amount ◽  
X Ray ◽  
Extracorporeal Shock Wave ◽  
Acid Salts

The quantitative mineralogical and chemical composition of urate urinary stones has been investigated using the X-ray powder method, scanning electron microscopy and X-ray spectral microanalysis for twenty five patients with urolithiasis of the Ivanovo region. The texture and surface composition of calculi have been carefully investigated and the peroral litholysis was simulated under laboratory conditions with dilute aqueous solutions of various pH values. The local change in the surface chemical composition for four stones during their destruction has been also studied via the X-ray spectral microanalysis. The main minerals of urate calculi are pure uric acid and insignificantly uric acid hydrates. No calculi composed of uric acid salts are observed. The main chemical elements of their surface are carbon, nitrogen and oxygen. The interaction of urate stones with litholytic solutions leads to a gradual decrease in their size, the effect being much more pronounced for smaller calculi. The results of X-ray spectral microanalysis show that the surface composition of stones composed of pure uric acid is almost constant during the treatment. Our results clearly indicate that oral litholysis of urate stones with appropriate citrate mixtures should be approached differentially depending on the composition of the calculus. In particular, for urate stones containing an appreciable amount of calcium oxalate hydrates, vitlocite or uric acid salts, litholytic therapy should be mainly applied as an additional technique to the extracorporeal shock wave or contact lithotripsy. For larger uric acid calculi, in turn, the effect of litholytic citrate monotherapy may be observed not earlier than after two or three months of oral administration of citrate mixtures.

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