Results 201 to 210 of about 3,160 (247)

Mechanochemical nitration of arenes and alcohols using a bench-stable organic nitrating reagent.

Green Chem
Valsamidou V, Patra S, Kadriu B, Metzger MG, Gremaud L, Katayev D.   +5 more
europepmc   +1 more source

The discovery of new metagenomic urethanases utilising a novel colorimetric assay for applications in the biodegradation of polyurethanes.

Green Chem
Anselmi S, Ni Y, Tonoli A, Wu J, Wang Y, Prout L, Miodownik M, Jeffries JWE, Hailes HC.   +8 more
europepmc   +1 more source

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Experimental investigation of nanoparticle dispersion by beads milling with centrifugal bead separation

Journal of Colloid and Interface Science, 2006
A new type of beads mill for dispersing nanoparticles into liquids has been developed. The bead mill utilizes centrifugation to separate beads from nanoparticle suspensions and allows for the use of small sized beads (i.e. 15-30 microm in diameter). The performance of the beads mill in dispersing a suspension of titanium dioxide nanoparticle with 15 nm
Christopher Hogan, Ferry Iskandar, Kikuo Okuyama   +2 more
exaly   +3 more sources

Bead Mill Disruption

2020
This chapter examines the state of the art and the application of agitator bead mills for cell disruption. Commercial high-speed bead mills have originally been constructed for the comminution of fine solids in thick, viscous suspensions down to the submicrometer range. The agitator has to accomplish the energy transfer to the grinding beads; therefore,
Horst Schütte, Maria-Regina Kula
openaire   +1 more source

Ceramic bead behavior in ultra fine grinding mills

Minerals Engineering, 2016
Abstract A preliminary review of the developing morphology of ceramic beads during extended operations in high energy stirred mills is presented. Ceramic beads are produced from various formulations and processes; these certainly affect the cost of the media; but significantly, they impact the competence and performance.
Paul Hassall, Emmanuel Nonnet, Ville Keikkala, Tarja Komminaho, Liisa Kotila   +4 more
openaire   +1 more source

Wet grinding of gibbsite in a bead-mill

Powder Technology, 1999
Abstract The phenomena (breakage, abrasion, chipping, etc.) taking place during wet grinding in a bead-mill have been analyzed using a set of tools developed to allow for a quantitative description of the particle shape, in complement of the classical approach based on selection and breakage functions.
Belaroui, K., Pons, Marie-Noëlle, Vivier, Hervé, Meijer, M   +3 more
openaire   +1 more source

Flow structure of bead mills with centrifugal system for separating beads from milled slurry

Chemical Engineering
The study results of the flow structures of a horizontal bead mill with a centrifugal system for separating bead particles from the milled slurry are presented. Diffusion, cellular and recirculation models of the flow structures were used to describe the residence time of dispersed material in the bead mill. To determine the parameters of these models,
G.A. Nosov, L.S. Elinevskaya, R.N. Ivanov, A.A. Semenyachenko   +3 more
openaire   +1 more source

Simulation of attrition bead mill and jet mill grinding

IFAC Proceedings Volumes, 2000
Abstract Fine powders of minerals are used in the paper and paint industry, and for ceramics. Grinding of minerals for fineness of few micrometers needed in these applications needs a lot of energy and therefore, an optimized control of grinding processes is very important to minimize the energy consumption.
openaire   +1 more source

Influence of the Dispersant on the Bead Milling of Alumina

Key Engineering Materials, 2012
The high-pure alpha-alumina powders with some agglomerate were treated by bead milling and their sintering behaviors were studied in this paper. During the treatment, the effect of different types and different amounts of dispersants was also investigated.
Ling Yuan, Long Hao Qi, Wei Pan
openaire   +1 more source

On modelling of submicronic wet milling processes in bead mills

Powder Technology, 2004
Methods used for modelling submicronic wet grinding processes are discussed. Simplified solutions of the population balance equation are first tested on experimental results obtained during batch runs performed with media mills on different materials. The use of statistical laws for modelling multimodal particle size distributions resulting from size ...
openaire   +1 more source