Overview
FrançaisABSTRACT
This article deals with divided solid materials which are implemented in the chemical industry and used as a means of control, analysis and improvement. It introduces in particular the basic notions of the properties of grain. The intrinsic characteristics of particles (size, density, form, porosity, hygroscopicity, softening point, etc.) are reviewed together with the properties related to a particle population (size distribution, bulk density, homogeneity, etc.).
Read this article from a comprehensive knowledge base, updated and supplemented with articles reviewed by scientific committees.
Read the articleAUTHORS
-
Khashayar SALEH: Teacher-researcher - Department of Industrial Process Engineering, Compiègne University of Technology
-
Pierre GUIGON: University Professor - Department of Industrial Process Engineering, Compiègne University of Technology
INTRODUCTION
Divided solids make up a significant proportion of the finished and intermediate products used in the chemical industry, and are omnipresent in our daily lives. This dossier introduces the basic concepts needed to characterize granular media: from the properties of the grain
A powder is an assembly of heterogeneous solid particles dispersed in a continuous gaseous phase, between which a multitude of interactions (Van der Waals, capillary, electrostatic, etc.) take place. The overall behavior of a powder depends directly on these interactions and on the characteristics of the solid particles. Thus, the characterization of a particulate system takes place at three levels
intrinsic particle characteristics (size, density, shape, porosity, hygroscopicity, softening point, etc.);
properties relating to a population of particles (size distribution, bulk density, homogeneity, etc.);
behavioral properties that reflect, on a global and macroscopic scale, the interactions existing within the particulate medium or between powder particles and their environment. In other words, these are the collective characteristics that reflect the behavior of the powder in various circumstances and/or environments. The study of these properties is the subject of a second dossier
.[J 2 252]
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference
This article is included in
Formulation
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Powder characterization and analysis
Bibliography
Also in our database
Events
Science et Technologie des Poudres (STP) et Matériaux frittés Triennial Symposium. May 27-29, 2009, Montpellier.
Société Française du Génie des Procédés (SFGP) biennial congress. October 14-16, 2009, Marseille.
International Granulation Workshop + biennial colloquium (organized by the University of Sheffield, England). June 22-24, 2009, Sheffield.
International...
Standards and norms
- Détermination de l'aire massique des poudres par diverses méthodes de perméabilimétrie à l'air - NF X11-602 - 10-77
Directory
Manufacturers and suppliers
(non-exhaustive list)
Particle size
Kalytia Technology http://www.kalytia.com
Micromeritics France SA http://www.micromeritics.fr
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference