Topic
Jet mill
About: Jet mill is a research topic. Over the lifetime, 803 publications have been published within this topic receiving 5686 citations.
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TL;DR: In this paper, the effects of several process parameters on the comminution capability of high pressure water jet mill were investigated, including pump pressure, mixing tube length and diameter, coal particle mass flow rate, diameter of feed material particle, the standoff distance, loading times, hardness of the target and the impact angle.
28 citations
TL;DR: In this article, a high pressure wet-type jet mill was employed to disperse nano-particle suspensions in the continuous phase up to viscosity η c = 1000 mPa s.
28 citations
Patent•
24 Jul 2013
TL;DR: In this article, a manufacturing method of high performance NdFeB rare earth permanent magnetic material was described, which was based on control over technological parameters of alloy smelting, coarse crushing, jet milling powder and forming and through addition of nanoscale oxide micro powder.
Abstract: The invention discloses a manufacturing method of high-performance NdFeB rare earth permanent magnetic material. Through control over technological parameters of alloy smelting, coarse crushing, jet milling powder and forming and through addition of nanoscale oxide micro powder, granularity of jet milling powder is refined, refined powder collected in a filter of a jet mill and powder of a cyclone collector are mixed, and therefore utilization ratios of the material and performance of a magnet are improved greatly; and the usage amount of rare earth is reduced greatly, especially the usage amount of heavy rear earth, and rear resources are protected.
27 citations
TL;DR: Key information is provided for obtaining highly purified lutein using flash column chromatography on a silica gel for separation from commercially available spray-dried Chlorella powder.
Abstract: We investigated an improved method for the separation of high-purified lutein from a commercially available spray-dried Chlorella powder (CP) using fine grinding by jet mill and flash column chromatography on a silica gel. Saponification and extraction of lutein were enhanced 2.3−2.9-fold in jet mill-treated CP (mean particle size, 20 μm) as compared to untreated CP (mean particle size, 67 μm). The carotenoid extract was dissolved in ether−hexane (1:1 v/v) and subjected to flash column chromatography on silica gel. A mixture of α- and β-carotene was eluted with hexane, followed by elution with hexane−acetone−chloroform (7:2:1 v/v). Lutein (dark-orange band) was collected after the elution of an unknown colorless compound (detected based on UV absorbance). The purity of lutein in this fraction was over 99%, and the yield was 60%. The present study provides key information for obtaining highly purified lutein using flash column chromatography on a silica gel. Keywords: Lutein; Chlorella; jet mill; silica ge...
27 citations
TL;DR: In this article, an analytical derivation for spiral jet mill cut size as a function of micronisation settings, gas thermodynamic properties and empirically derived constants for the material and mill is presented for the first time.
27 citations