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CHROMIUM AND THALLIUM IN TURKISH ASPHALTITE SAMPLE
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2017Asphaltite derives from petroleum origin solid fossil fuel [1]. It contains valuable elements such as chromium, thallium molybdenum, uranium etc. Chromium and thallium are very important elements both environmental and health. Chromium has an important role in the metabolism. It keeps the blood sugar level in balance.
Kavak, Orhan +3 more
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Salt Flotation of Şirnak Asphaltite
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2011Abstract The aim of this study was to investigate the possibility of cleaning Sirnak asphaltite by salt flotation. For this purpose, experimental studies were conducted on a Sirnak asphaltite sample containing high ash and sulfur content. The effects of salt amount, pH, frother amount, and impeller speed on the flotation were investigated separately in
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Rheological Properties of Asphaltite−Water Slurries
Energy & Fuels, 2006In this study, the rheological characteristics of asphaltite−water slurries (AWSs) were investigated with respect to some of the most important parameters in the preparation of slurries. The effects of pulp density, chemical addition, pulp pH, and particle size on the rheological behavior and viscosity of AWSs were studied. The role of demineralization
HİÇYILMAZ, Cahit +2 more
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A kinetic study of Meyers' desulphurization of asphaltite
Fuel, 1989Abstract Cizre asphaltite was leached in acidic ferric chloride solutions. The parameters affecting conversion of pyrite disseminated in asphaltite to sulphate were investigated and a mathematical model having these parameters was derived to define the leaching process.
ONGANER, Yavuz, ALKAN, M, KOCAKERIM, MM
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Importance of Asphaltite Deposits in Southeastern Anatolia
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2006Native energy sources of Turkey are quite limited, and the country is heavily dependent on the import of primary energy from abroad. The demand for electrical energy has increased very rapidly in Turkey due to the ongoing industrialization process and high population growth. Energy consumption in Turkey has continually increased over the past years and
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Demineralization of asphaltite using free jet flotation
Asia-Pacific Journal of Chemical Engineering, 2016AbstractThe mineral matter and sulfur, which are present in varying amounts in asphaltites, are a major problem in the utilization of asphaltites as a fuel. Demineralization studies were carried out on an asphaltite sample containing 43.69% ash, 35.9% volatile matter, 19.7% fixed carbon, and 4.64% total sulfur.
Ali Güney +3 more
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Producing adsorbents from nitrated asphaltites
Chemistry and Technology of Fuels and Oils, 2012Carbon adsorbents with mechanical strengths of 90-93% and a micropore volume of 0.16-0.3 cm3/cm3 have been obtained from nitrated asphaltites by the existing industrial technology. Compared to industrial carbon with the trademark KAD-iodine, medium-charred specimens are highly selective in extracting gold and silver from multicomponent polymetal ...
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Thermal destruction of asphaltites in supercritical fluids
Russian Journal of Physical Chemistry B, 2010The processes of thermal destruction of asphaltites recovered from the Rafaelita and Toribia deposits in the presence of water, benzene, tetralin, and ethanol in the supercritical state are studied. The solvent nature plays an important role in the thermal destruction, with the maximum conversion (99 wt %) of both asphaltites into liquid products being
V. V. Saveliev, A. K. Golovko
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Pyrolysis Kinetics of Asphaltite by Thermal Analysis
Petroleum Science and Technology, 2006Abstract Pyrolysis properties and kinetic analysis of asphaltite were investigated by means of thermogravimetry (TG) and derivative thermogravimetry (DTG). Thermal experiments were carried out from ambient temperatures to 1000°C in nitrogen atmosphere at different heating rates.
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Obtaining vanadyl porphyrins from asphaltite of sadkinsk deposit
Chemistry and Technology of Fuels and Oils, 1987A method of obtaining vanadyl porphyrins by acetone treatment of asphaltite was proposed. A 1 gram asphaltite sample and 200 ml of acetone were placed in a flask and refluxed by 1 hour. After cooling, the solution was filtered and the content of vanadyl porphyrins in the acetone extract was determined by a spectrophotometer. The product was obtained in
N. K. Nadirov +4 more
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