Results 161 to 170 of about 3,258 (214)

Studies on Scale-Up of Ball Mills

Mining, Metallurgy & Exploration, 1984
The impetus for the work described in this paper was provided by difficulties being reported by some operators in obtaining design throughputs in large diameter ball mills. In some cases, it seems that the usual methods of ball mill scale-up based on the Bond work index seriously overestimate the throughput of large diameter ball mills; in other cases,
Whiten, W. J., Kavetsky, A.
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Phases in ball-milled

Journal of Physics: Condensed Matter, 1997
Phases in ball milled for different lengths of time have been investigated by means of x-ray diffraction, Mossbauer spectroscopy and Raman scattering spectroscopy. It was found that the high-temperature phase can be formed by ball milling at room temperature. In the milling procedure the compounds FeSi and were also formed.
Li Tie, Li Yu-zhi, Zhang Yu-heng
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Multifractal properties of ball milling dynamics

Chaos: An Interdisciplinary Journal of Nonlinear Science, 2014
This work focuses on the dynamics of a ball inside the reactor of a ball mill. We show that the distribution of collisions at the reactor walls exhibits multifractal properties in a wide region of the parameter space defining the geometrical characteristics of the reactor and the collision elasticity.
M. A. Budroni, V. Pilosu, DELOGU, FRANCESCO, M. Rustici   +3 more
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Dry ball milling and wet ball milling for fabricating copper–yttria composites

Rare Metals, 2018
Abstract Yttria‐reinforced copper matrix composites were prepared by dry ball milling (DBM) and wet ball milling (WBM), respectively, followed by spark plasma sintering (SPS). It is to determine which milling process is better for fabricating Cu–Y 2 O 3
Fei Huang, Hang Wang, Jin‐Shui Chen, Bin Yang   +3 more
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Mechanochemical decomposition of pentachlorophenol by ball milling

Journal of Environmental Sciences, 2009
The mechanochemical dechlorination of pentachlorophenol (PCP) was studied using CaO and SiO2 powder as additives. The effects of the milling time and additives on the dechlorination rate were investigated. The resulting product was characterized by X-ray diffraction (XRD), Fourier transform infrared spectra (FT-IR), thermogravimetric analysis (TG) and ...
Yinglei, Wei, Jianhua, Yan, Shengyong, Lu, Xiaodong, Li   +3 more
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Microstructure investigations of ball milled materials

Microscopy Research and Technique, 1998
HREM and FEG TEM were emphasized and extensively used to follow the most subtle changes in the structure and composition of ball-milled Cu, Fe-Cu, and thermally decomposed Fe60Cu40. Some significant results are obtained and summarized as follows: HREM shows that the deformation of ball-milled copper proceeds mainly by twinning and shear bands (SBs ...
J Y, Huang, Y K, Wu, H Q, Ye
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Process engineering with planetary ball mills

Chemical Society Reviews, 2013
Planetary ball mills are well known and used for particle size reduction on laboratory and pilot scales for decades while during the last few years the application of planetary ball mills has extended to mechanochemical approaches. Processes inside planetary ball mills are complex and strongly depend on the processed material and synthesis and, thus ...
Christine Friederike, Burmeister, Arno, Kwade   +1 more
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Predictive model for ball mill wear

Canadian Metallurgical Quarterly, 1997
Abstract Ball mills, characteristic of the mineral processing industry, are used to reduce ore from one size distribution to another. Wear is associated with comminution mechanisms found in the ball charge which in turn affects grinding performance.
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Solvent‐Free Asymmetric Organocatalysis in a Ball Mill

Angewandte Chemie, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Belén, Rodríguez, Toni, Rantanen, Carsten, Bolm   +2 more
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An investigation of a ball mill.

1921
Porter, J. (Supervisors)
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