ISSN:
0934-0866
Keywords:
Chemistry
;
Industrial Chemistry and Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
An evaluation was made to assess whether linear grade distribution measurements determined from polished sections of randomly oriented particles can be used to estimate the extent of liberation for multiphase particles of specified size. Two techniques, optical image analysis and microprobe analysis, were used to establish the linear grade distributions for samples of different composition from a copper porphyry flotation circuit and these two were found to be equivalent. An estimate of the variance in the experimental data was made by measuring the average chalcopyrite content in these samples and comparing the results to chemical assays. The statistical significance of the linear grade distribution data obtained by optical image analysis was assessed and, for a given accuracy, the number of particles required to obtain an unbiased representation of the sample was determined.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/ppsc.19870040116
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