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Polymorphic Transformation of PbO by Isothermal Wet Ball‐Milling
Journal of the American Ceramic Society, 1971Mechanochemical polymorphic transformation of massicot to litharge was achieved by isothermal wet ball‐milling. A first‐order relation was observed between the fractional conversion and the milling time; the apparent activation energies for various milling conditions were obtained by kinetic treatments.
MAMORU SENNA, HIROSHI KUNO
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Acceleration and deceleration of breakage rates in wet ball mills
International Journal of Mineral Processing, 1992Abstract Wet grinding is a nonlinear process and hence, estimation of breakage rates based on the linear model cannot be strictly used. Also the use of a functional form for breakage rates in an estimation scheme can produce artificially unrealistic values.
R.K. Rajamani, D. Guo
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On the analysis of fine wet grinding in a batch ball mill
The Chemical Engineering Journal and the Biochemical Engineering Journal, 1996Abstract The influence of the slurry density on the fine wet grinding performances of a batch ball mill was examined for an alumina hydrate feed. Irrespective of the operating conditions, the size reduction process proceeds fast in the first period of grinding (20 min); then its rate progressively reduces and after 1–2 h the size of the product ...
C. Frances +3 more
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A Quantitative Treatment of Size Reduction in Wet Ball Millings
Drug Development and Industrial Pharmacy, 1979AbstractThe decrease in geometric mean particle size during wet ball milling follows a reciprocal relationship, which predicts an initial rapid rate of comminution, followed by a slow rate of reduction which develops into a situation where the mean particle size virtually remains constant.
Michael Isaac Barnett +1 more
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Decomposition of NO3− by lead pellets with wet ball milling
Waste Management, 1999Abstract The reduction of an ammonium nitrate solution by lead pellets during wet ball milling was studied, as a method of removing concentrated NO 3 − from wastewater. Metal oxides forming on the surface of lead pellets in a ball mill reactor are continuously removed by contact between the pellets.
Miho Uchida +2 more
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Wet fine grinding in a laboratory stirred ball mill
2010Fine grinding involves a large number of parameters in its operation. In this study, the effect of some parameters such as initial particle size, filling volume of the ball and ball size distribution on fine grinding of calcite powders (-200, -150 and -100 ?m) using a laboratory stirred ball mill was studied under wet conditions. Zirconia beads (ZrSiO4)
Toraman, O. Y., Katircioglu, D.
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Synthesis of Fe3O4 nanoparticles by wet milling iron powder in a planetary ball mill
China Particuology, 2007Abstract Fe3O4 nanoparticles with sizes ranging from 30 to 80 nm were synthesized by wet milling iron powders in a planetary ball mill. The phase composition and the morphologies of the as-synthesized products were measured by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM).
Ding Chen, Song Ni, Zhenhua Chen
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Modeling of operating parameters for wet ball mill by modified GA-KPLS
Third International Workshop on Advanced Computational Intelligence, 2010Load of the ball mill affects the productivity, quality and energy consumption of the grinding process. But sensors are not available for the direct measurement of the key parameters for mill load (ML). A new soft sensor approach based on the shell vibration signals to measure the operating parameters is proposed in this paper.
Jian Tang 0003 +4 more
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Dolomite wet comminution in planetary ball mill
2007Proces mokrog usitnjavanja često se koristi kako bi se u procesu usitnjavanja spriječilo aglomeriranje materijala. To će rezultirati znatnom uštedom energije i povećanjem učinka procesa. Reološko ponašanje suspenzija dobivenih u procesu mokrog usitnjavanja ovisi o nizu čimbenika: procesnim uvjetima (broj okretaja mlina, broj tijela za usitnjavanje ...
Glasnović, Antun, Matijašić, Gordana
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Modelling of mill load for wet ball mill via GA and SVM based on spectral feature
2010 IEEE Fifth International Conference on Bio-Inspired Computing: Theories and Applications (BIC-TA), 2010The load of wet ball mill is a key parameter for grinding process, which affects the productivity, quality and energy consumption. A new soft sensor approach based on the mill shell vibration signal is proposed in this paper. As the frequency domain signal contains more evidently information than time domain, the power spectral density (PSD) of the ...
Lijie Zhao +4 more
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