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Slurry density effects on ball milling in a laboratory ball mill
Powder Technology, 1989Abstract The effect of slurry density on the dynamics and grinding behavior of a batch ball mill was studied using quartz as a test material. It was found that slurry density determined the distribution of solid charge in the mill, with migration of particles from the tumbling zone to the mill periphery as solid concentration was progressively ...
C. Tangsathitkulchai, L.G. Austin
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Studies on Scale-Up of Ball Mills
Mining, Metallurgy & Exploration, 1984The 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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Raman spectroscopy of ball-milled TiO2
Journal of Molecular Structure, 2001The Raman spectroscopy is method to analyze different crystal structure of TiO2. We applied it in order to study structural changes during high-energy ball milling of TiO2 powder. TiO2 anatase (tetragonal structure, space group I4/amd = D4h19) was milled up to 10 hours using two different sets of vials and balls.
Furić, Krešimir +3 more
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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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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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Direct Amidation of Esters by Ball Milling**
Angewandte Chemie International Edition, 2021Abstract The direct mechanochemical amidation of esters by ball milling is described. The operationally simple procedure requires an ester, an amine, and substoichiometric KOtBu and was used to prepare a large and diverse library of 78 amide structures with modest to excellent efficiency. Heteroaromatic and heterocyclic components are
William I. Nicholson +7 more
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Ball wear and ball size distributions in tumbling ball mills
Powder Technology, 1985Abstract The theory of the calculation of the size distribution of the equilibrium mixture of balls in a ball mill is developed. The differential equation is solved for wear laws of the form wear rate per ball ∝ r2 + Δ where r is ball radius. Δ = 0 gives the Bond wear law and Δ = 1 gives the Davis wear law.
L.G. Austin, R.R. Klimpel
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Predictive model for ball mill wear
Canadian Metallurgical Quarterly, 1997Abstract 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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Effects of Ball Size Distribution and Mill Speed and Their Interactions on Ball Milling Using DEM
Mineral Processing and Extractive Metallurgy Review, 2021Kianoush Barani
exaly