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Rate Processes in Multiparticle Metallurgical Systems

  • J. A. Herbst

Abstract

In the preceding chapter, the kinetic behavior of individual particles isolated in an infinite fluid medium has been discussed. The various steps or combinations of steps which can control the rate of heterogeneous reactions were identified and appropriate types of mathematical models to describe individual particle behavior were reviewed. In the present chapter, consideration is extended to the behavior of multiparticle systems. By definition, a multiparticle system consists of an assembly of particles that make up the disperse phase plus the environment surrounding the particles that makes up the continuous phase in a processing vessel. Virtually all particulate assemblages encountered in extractive metallurgical practice are polydisperse in nature, i.e., the particles being processed have a broad distribution of properties such as size, mineralogical composition, etc., which contribute to the overall behavior of the system. In addition, in practical systems the particles often interact with one another and/or with the fluid environment. If one wishes to accurately design a reactor, optimize an existing operation, or specify an effective automatic control strategy for an extractive metallurgical process, it is necessary to be able to describe, in quantitative terms, the influence of material property distributions and particle-particle or particle-fluid interactions on the overall reaction behavior of the system.

Keywords

Volume Flow Rate Extractive Metallurgy Population Balance Copper Extraction Multiparticle System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1979

Authors and Affiliations

  • J. A. Herbst
    • 1
  1. 1.Department of Metallurgy and Metallurgical EngineeringUniversity of UtahSalt Lake CityUSA

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