Coal. Determination of mineral matter

2015 ◽  
Keyword(s):  
Mineral Matter

A Fourier Transform Infrared Study of Mineral Matter in Coal: The Application of a Least Squares Curve-Fitting Program

1981 ◽  
Vol 35 (1) ◽  
pp. 102-106 ◽  
Author(s):  
Paul C. Painter ◽  
Susan M. Rimmer ◽  
Randy W. Snyder ◽  
Alan Davis
Keyword(s):  
Fourier Transform ◽  
Least Squares ◽  
Curve Fitting ◽  
Fourier Transform Infrared ◽  
Mineral Matter ◽  
Infrared Study ◽  
Least Squares Curve Fitting ◽  
Mineral Mixtures ◽  
Good Agreement

The application of Fourier transform infrared spectroscopy to the quantitative determination of mineral matter in coal is discussed. The use of a least squares curve-fitting program allows a choice between standards to be made. The results of an analysis of mineral mixtures and a coal low temperature ash are presented. The results are in good agreement with known concentrations and those obtained by other methods of analysis.

Preliminary Determination of Minerals in Mukah Coal

2017 ◽  
Vol 888 ◽  
pp. 458-461
Author(s):  
Hazman Seli ◽  
Nik Akmar Rejab ◽  
Zainal Arifin Ahmad
Keyword(s):  
Metallurgical Industry ◽  
Cement Industry ◽  
Total Carbon ◽  
Mineral Matter ◽  
Carbonaceous Matter ◽  
Xrd Pattern ◽  
Sem Image ◽  
Irregular Shapes ◽  
Coal Particles

Coal is still one of the major energy sources. It is used as a reducing agent in the metallurgical industry, in the cement industry coal is a source of energy and it is still used in power generation. Mukah coal is characterized through chemical and mineralogical properties determinations. XRD pattern of the coal shows that it is amorphous in nature and dominated by quartz and kaolinite. Mukah coal has about total carbon 97.98 wt% with SiO2, Al2O3 and Fe2O3 present as the most predominant oxides. The oxides make up approximately 1.58 wt% of the coal samples. The SEM image shows basically depicts coal particles of various irregular shapes and sizes. The mineral matter was not clearly seen on the surface of the coal particle as it was supposedly embedded inside the bulk of carbonaceous matter.

scholarly journals Quantitative determination of mineral matter in lignite by X-RAY spectrometry, using the Compton effect.

2016 ◽  
Vol 47 (4) ◽  
pp. 1645
Author(s):  
V. Perdikatsis
Keyword(s):  
Organic Matter ◽  
Absorption Coefficient ◽  
Quantitative Determination ◽  
Calorific Value ◽  
Matter Content ◽  
Compton Effect ◽  
Mineral Matter ◽  
X Ray ◽  
Mineral Phases

For the evaluation of lignite quality, apart from the calorific value, it is necessary to determine the mineral phases, which are deposited simultaneously with the organic matter during the formation of peat or formed epigenetically during the coalification stages. The mineral matter content is usually expressed as ash, after the combustion of lignite, and its determination is a quite time consuming process. In this paper an attempt is made for a fast and easy quantitative determination of mineral matter in lignite samples with unknown concentrations, with the use of an X-ray spectrometer and in particular the Compton effect of the X-ray tube. The intensity of the Compton peak is a function of the mass absorption coefficient of the lignite sample, which in turn depends on the type and amount of the mineral matter contained. Using this property of the Compton Effect, the percentage of mineral matter of lignite was determined. The method was verified by analyzing lignites with known concentrations of inorganic mater. The results of this study showed, that the mineral matter content can be determined, by the proposed method, fast and accurately without lignite combustion.

scholarly journals Characteristics of promising apricot (Prunus armeniaca L.) genetic resources in Central Serbia based on blossoming period and fruit quality

2010 ◽  
Vol 37 (No. 2) ◽  
pp. 46-55 ◽  
Author(s):  
T. Milošević ◽  
N. Milošević ◽  
I. Glišić ◽  
B. Krška
Keyword(s):  
Fruit Weight ◽  
Prunus Armeniaca ◽  
Soluble Solids ◽  
Mineral Matter ◽  
Total Sugars ◽  
Breeding Programmes ◽  
Prunus Armeniaca L ◽  
The Difference

This study presents results on the performance of apricot (Prunus armeniaca L.) genotypes in Central Serbia. The research included observation and recording of biological (i.e. phenological) traits and in situ sampling of fruits from 1,210 grafted trees for determination of pomological and sensorial traits. A total of 14 genotypes were selected and compared with Hungarian Best (control cultivar). The difference in blossoming time between two years was one month. In 2006, blossoming time was found to be earlier in three genotypes, simultaneous in five genotypes and later in six as compared to the control. In 2007, bloom was earlier in four genotypes, simultaneous in four and later in six genotypes. Average fruit weight ranged from 41.34 ± 0.8 to 81.50 ± 4.1 g, T-5 being the only genotype having the fruit weight lower than Hungarian Best (49.07 ± 2.2 g). The content of soluble solids, total sugars, and mineral matter ranged from 15.72–18.88%, 11.53– 4.99%, and 0.29–0.43%, respectively, and total acidity was 0.77–1.08%. The appearance and the skin colour of the genotypes were highly attractive. They have promising traits which suggest that they can be useful parents in apricot breeding programmes.

scholarly journals Determination of essential oil components, mineral matter, and heavy metal content of Salviavirgata Jacq. grown in culture conditions

2019 ◽  
Vol 43 (4) ◽  
pp. 395-404 ◽  
Author(s):  
Belgin COŞGE ŞENKAL ◽  
Tansu USKUTOĞLU ◽  
Cüneyt CESUR ◽  
Volkan ÖZAVCI ◽  
Hülya DOĞAN
Keyword(s):  
Heavy Metal ◽  
Essential Oil ◽  
Metal Content ◽  
Culture Conditions ◽  
Heavy Metal Content ◽  
Mineral Matter ◽  
Oil Components

Determination of absorption coefficients for chlorophyll a, phycocyanin, mineral matter and CDOM from three central Indiana reservoirs

2013 ◽  
Vol 39 ◽  
pp. 151-160 ◽  
Author(s):  
Anthony Nguy-Robertson ◽  
Lin Li ◽  
Lenore P. Tedesco ◽  
Jeffrey S. Wilson ◽  
Emmanuel Soyeux
Keyword(s):  
Chlorophyll A ◽  
Mineral Matter ◽  
Absorption Coefficients

The impact of mineral matter in coal on its combustion, and a new approach to the determination of the calorific value of coal

Fuel ◽  
1995 ◽  
Vol 74 (2) ◽  
pp. 247-251 ◽  
Author(s):  
Ahmad Reza Shirazi ◽  
Olle Börtin ◽  
Lars Eklund ◽  
Oliver Lindqvist
Keyword(s):  
Calorific Value ◽  
Mineral Matter ◽  
New Approach ◽  
The Impact
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