Solid flow properties

Ciystallization from solution is an important separation and purification process in a wide variety of industries. These range from basic materials such as sucrose, sodium chloride and fertilizer chemicals to pharmaceuticals, catalysts and specialty chemicals. The major purpose of crystallization processes is the production of a pure product. In practice however, a number of additional product specifications are often made. They may include such properties as the ciystd size distribution (or average size), bulk density, filterability, slurry viscosity, and dry solids flow properties. These properties depend on the crystal size distribution and crystal shape. The goal of crystallization research therefore, is to develop theories and techniques to allow control of purity, size distribution and shape of crystals. 

D.J. Mason, P. Marjanovic, Re-Visit of the fundamental definitions of fluid-solids flow properties in freight pipelines, Proceedings of the 9th International Symposium on Freight Pipelines, Monterrey, Mexico, April 1998. 

All these problems are the result of the interaction of solids, solids flow properties, and the design of the equipment. Johanson (2002) has identified seven indices that relate to the bulk flow properties of solids. 

Secondary Electron Microscopy in Pharmaceutical Technology / 3217 Semisolid Preparations / 3257 Solids Flow Properties / 3275... 

The method, presented here is the initial step in choosing or selecting a biomass from various available sources. However, further studies have to be conducted for optimising process parameters and also to obtain the suitability in terms of physical properties (e.g. solid flow properties of biomass). 

Factors that Affect Flaw Properties An overview of the primary factors that affect the bulk solid flow properties. 

In addition, the flowability of a bulk solid is a function of the bulk solids flow properties and the design parameters of the handling equipment. For example, poor flowing bulk solids can be handled reliably in properly designed equipment, and good flowing bulk solids may develop flow problems in improperly designed equipment. As such, a more accurate definition of flowability is the ability of powder to flow in a desired manner in a specific piece of equipment. 

A. W. Jenike, Effect of Solids Flow Properties and Hopper Configuration on Silo Loads, In Unit and Bulk Materials Handling (Loeffler, F.J., and C.R. Proctor, eds.), ASME, 1980, pp... 

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