Topic
Jet mill
About: Jet mill is a research topic. Over the lifetime, 803 publications have been published within this topic receiving 5686 citations.
Papers published on a yearly basis
Papers
More filters
Patent•
24 Jul 2007
TL;DR: In this article, a method of jet milling silicon powder in which silicon pellets are fed into a jet mill producing a gas vortex in which the pellets are entrained and pulverized by collisions with each other or walls of the milling chamber.
Abstract: A method of jet milling silicon powder in which silicon pellets are fed into a jet mill producing a gas vortex in which the pellets are entrained and pulverized by collisions with each other or walls of the milling chamber. The chamber walls are advantageously formed of high-purity silicon as are other parts contacting the unground pellets or ground powder. The pellets and chamber parts may be formed of electronic grade silicon but polycrystalline silicon may be used for chamber parts. Additionally, the particle feed tube in which the particles are entrained in a gas flow and the vortex finder operating as the outlet at the center of the vortex may be formed of silicon. The milling and feed gas may be nitrogen supplied from a liquid-nitrogen tank lined with stainless steel. The feed pellets may be formed by chemical vapor deposition.
30 citations
Patent•
20 Jan 1976
TL;DR: In this paper, the authors describe an apparatus for generating aerosols of solid particles, particularly inhalable vaccine, composed of a jet mill or micronizer, comprising, on one of its side walls, cavities which open out into the chamber of the mill, of syringues containing a determined dose of a pulverulent product which are fitted into said cavities and of means for pushing the plungers of said syringue.
Abstract: This invention relates to apparatus for generating aerosols of solid particles, particularly inhalable vaccine, said apparatus being composed of a jet mill or micronizer, comprising, on one of its side walls, cavities which open out into the chamber of the mill, of syringues containing a determined dose of a pulverulent product which are fitted into said cavities and of means for pushing the plungers of said syringues.
30 citations
TL;DR: In this article, an overall model of a continuous grinding process is proposed which combines experimentally-determined breakage kinetics, a model of solids flow in the active zone and the grade efficiency curve of the classifier.
29 citations
TL;DR: In this article, the authors investigated the effect of milling on pharmaceutical cocrystals and compared the performance of ball mill and jet mill, using caffeine-glutaric acid (1:1) cocrystal as the model compound.
Abstract: Despite the rising interest in pharmaceutical cocrystals in the past decade, there is a lack of research on the solid processing of cocrystals downstream to crystallization. Mechanical stress induced by unit operations such as milling could affect the integrity of the material. The purpose of this study is to investigate the effect of milling on pharmaceutical cocrystals and to compare the performance of ball mill and jet mill, using caffeine–glutaric acid (1:1) cocrystal as the model compound. Our results show that ball milling induced polymorphic transformation from the stable Form II to the metastable Form I, whereas Form II remained intact after jet milling. Jet milling was found to be effective in reducing particle size, but ball milling was unable to reduce the particle size beyond a certain limit even with increasing milling intensity. The heating effect during ball milling was proposed as a possible explanation for the difference in the performance of the two types of mill. The local increase in t...
28 citations
TL;DR: In this paper, the authors investigated the self-hardening of ground fly ash from a Finnish power plant with a bubbling fluidized bed boiler that burns forest industry residuals and peat.
28 citations