Browsing by Author "Ozkan, A"
Now showing items 1-17 of 17
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Breakage parameters of some minerals and coals ground in a laboratory size ceramic mill
Ozkan, A; Yekeler, M; Aydogan, S (NATL INST SCIENCE COMMUNICATION, 2003)The kinetics of batch dry and wet grindings of calcite, barite, quartz, lignite and anthracite from feeds of sieve size 425+300 mum has been determined using a laboratory scale ceramic ball mill. The S-l values obtained ... -
Coagulation and flocculation characteristics of celestite with different inorganic salts and polymers
Ozkan, A; Yekeler, M (ELSEVIER SCIENCE SA, 2004)Coagulation and flocculation characteristics of celestite were investigated using CaCl2, MgCl2 and AlCl3 and anionic (A-150), cationic (C-573) and non-ionic (N-100) flocculants, respectively. Isoelectric point of celestite ... -
Coagulation and flocculation characteristics of talc by different flocculants in the presence of cations
Ozkan, A (PERGAMON-ELSEVIER SCIENCE LTD, 2003)The coagulation and flocculation characteristics of talc, using anionic, cationic and non-ionic flocculants in distilled and fresh water containing Ca2+, Mg2+, Na+. and K+ ions were investigated. It was shown that the ... -
Correlation of the breakage parameters with the critical surface tension for wetting of barite
Yekeler, M; Ozkan, A (ELSEVIER SCIENCE SA, 2003)In this paper, we present a correlation and experimental data for a relationship between the breakage and the wettability for barite mineral. The breakage parameters, which are readily obtained from grinding test, are the ... -
Critical solution surface tension for oil agglomeration
Ozkan, A; Aydogan, S; Yekeler, M (ELSEVIER SCIENCE BV, 2005)This paper presents the effect of surface tension of solution used as medium for the oil agglomeration of minerals. Naturally occurring hydrophobic and hydrophilic minerals are used in this study. It was determined that ... -
Decolourising textile wastewater with modified titania: the effects of inorganic anions on the photocatalysis
In this study, the environment of the TiO2 photocatalyst modified with silver was investigated. The photocatalytic degradation of textile dye Astrazone Orange G was carried out in the presence and absence of common inorganic ... -
Determination of manganese and lead in roadside soil samples by FAAS with ultrasound assisted leaching
An Ultrasonic Leaching Method (ULM) was developed for the analysis of manganese and lead on roadside soil samples in order to assess the pollution from motor vehicle exhaust. The variations in analyte recoveries by sonication ... -
Determination of the breakage and wetting parameters of calcite and their correlations
Yekeler, M; Ozkan, A (WILEY-V C H VERLAG GMBH, 2002)This paper presents the breakage and wetting parameters of calcite mineral obtained experimentally and establishes a correlation between these characteristic parameters. The breakage parameter obtained from the different ... -
The effects of various surface-active agents on the breakage of calcite in a laboratory porcelain mill
Ozkan, A; Yekeler, M (A A BALKEMA PUBLISHERS, 2000)A study has been made of grinding of calcite in a laboratory size porcelain mill as dry, wet and wet grinding with chemicals using standard S and B test technique. The dry, wet and wet grinding with chemicals were performed ... -
Fine dry grinding of zeolite in a laboratory ball mill
Ozkan, A; Yekeler, M (WILEY-V C H VERLAG GMBH, 2003)This paper presents the importance and usage of natural zeolites, which was recently recognized in the industry. Therefore, the grinding properties of natural zeolite were studied with the emphasis on a kinetic study in a ... -
Kinetics of fine wet grinding in a laboratory ball mill
Yekeler, M; Ozkan, A; Austin, LG (ELSEVIER SCIENCE SA, 2001)The kinetics of batch wet grinding of quartz from a feed of 600 x 425 mum to a product of 80% less than 8 mum have been determined using sieving and laser diffractometer sizing for size analysis. A dispersing agent was ... -
Kinetics of wet versus dry grinding of lignite by a porcelain mill
Ozkan, A; Yekeler, M (NATL INST SCIENCE COMMUNICATION-NISCAIR, 2002)The kinetics of dry versus wet grinding of several feed size fractions of lignite in a laboratory size porcelain mill are reported here using feed fractions prepared to 600+425, -425+300 and -300+212 mum mono-sizes. The ... -
A new microcolumn flotation cell for determining the wettability and floatability of minerals
Ozkan, A; Yekeler, M (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2003)Flotation is one of the most important physicochemical processes for mineral separations and other recovery operations. Flotation machines have been developed since the beginning of the 19th century and are still under ... -
A new microscale flotation cell: Combination of Canadian column and Partridge-Smith cell
Ozkan, A; Yekeler, M (KOZAN OFSET MALBAACILIK SAN VETIC LTD STI, 2001)Flotation is one of the most important physicochemical processes for mineral separations and other recovery operations. Flotation machines have been developed since the beginning of the 19(th) century and are still under ... -
Prediction of the wettability characteristics of some minerals from their breakage parameters
Yekeler, M; Ozkan, A (ELSEVIER SCIENCE BV, 2003)In this contribution, the breakage and wettability properties of calcite and barite minerals were presented and some correlations were established between these experimentally determined parameters. The gamma(c) relates ... -
Relationship between the breakage and wetting characteristics of lignite
Yekeler, M; Ozkan, A (NATL INST SCIENCE COMMUNICATION, 2002)This paper reports the findings of an investigation of the breakage values of lignite to relate the wettability properties. The breakage values, obtained from grinding, are the specific rates of breakage (S-i) and the gamma ... -
Shear flocculation of celestite with sodium oleate and tallow amine acetate: effects of cations
Ozkan, A; Yekeler, M (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2004)Sodium oleate and tallow amine acetate (TAA) were used as surfactants for the shear flocculation of celestite. The shear-flocculation power values obtained with sodium oleate were higher than those obtained with TAA in ...