The bond work index of mixtures of ceramic raw materials

Ipek, H
Ucbas, Y
Hoşten, Çetin
The Bond method of grindability was applied to ceramic raw materials (quartz, kaolin and feldspar) and to their binary and ternary mixtures. The Bond work indices of the admixtures containing a softer component (kaolin) were found to be greater than the weighted average of the work indices of the individual components in the mixture. As a result, separate grinding of ceramic raw materials seems to require less specific energy input than grinding them in admixtures.


Ternary-mixture grinding of ceramic raw materials
Ipek, H; Ucbas, Y; Hoşten, Çetin (Elsevier BV, 2005-01-01)
Batch experiments were carried out on the dry ball milling of commonly used ceramic raw materials quartz, kaolin and feldspar, singly and as ternary mixtures. The modified form of the Charles energy-size reduction equation was used to calculate the energy consumed by each of the components in the mixture. The results confirmed the validity of the mass fraction hypothesis for energy split between the components that had been defined and verified for the binary mixtures of equal-density minerals. The distribu...
The effect of water on combustion behavior of crude oils
Kök, Mustafa Verşan; Nurgaliev, Danis K. (Elsevier BV, 2020-03-01)
The ramped temperature oxidation experiments were performed on heavy and light crude oil samples using the TGA and DSC instruments. The crude oils were mixed with different weight percentages (10%, 20%, and 30%) of water, as a result of which six different water-oil mixtures were prepared. The samples were heated up to 800 degrees C with three heating rates 20, 25, 30 degrees C/min. Two reaction regions, particularly the low temperature oxidation (LTO) and high temperature oxidation (HTO), were identified i...
Quantifying hydrophobicity of pyrite after copper activation and DTPI addition under electrochemically controlled conditions
Hicyilmaz, C; Altun, Naci Emre; Ekmekci, Z; Gokagac, G (Elsevier BV, 2004-07-01)
In this study, the response of the surface of pyrite to copper activation under electrochemically controlled conditions was investigated in the presence and absence of sodium diisobutyl dithiophosphinate (DTPI). The mechanism of interactions between the concerned reagents and pyrite was investigated using cyclic voltarnmetry in solutions of different pH. In addition, contact angle measurements were performed to determine the wetting behavior of the pyrite surface as a function of pulp potential and pH. The ...
State-Estimation-Based Determination of Harmonic Current Contributions of Iron and Steel Plants Supplied from PCC
Sezgin, Erhan; Göl, Murat; Salor, Ozgul (Institute of Electrical and Electronics Engineers (IEEE), 2016-05-01)
In this paper, a state-estimation-based method is proposed to determine harmonic current contributions of iron and steel (I&S) plants supplied from a point of common coupling (PCC). Due to highly nonlinear nature of the I&S plant operation, accurate estimation of harmonic contributions of the individual plants is essential. In the proposed method, the nonlinear characteristics of the plants and the utility are modeled as harmonic current sources and the harmonic current contributions of loads are decoupled ...
Analysis of coining process in production of medallion
Akkuş, Derya; Gökler, Mustafa İlhan; Department of Mechanical Engineering (2009)
Coins and medallions are manufactured by using coining process which is a metal forming process. In coining of medallions, there is a strong need to shorten the production time and reduce the production cost and waste of material in conventional coining method. An alternative coining method may be considered in order to reduce the production time and the manufacturing cost. In this study, a new method has been proposed. In the proposed method, design of the medallion is performed by utilizing computer aided...
Citation Formats
H. Ipek, Y. Ucbas, and Ç. Hoşten, “The bond work index of mixtures of ceramic raw materials,” MINERALS ENGINEERING, pp. 981–983, 2005, Accessed: 00, 2020. [Online]. Available: