Title page for ETD etd-102197-144810


Type of Document Master's Thesis
Author Randolph, John Michael Jr.
Author's Email Address j-randolph@usa.net
URN etd-102197-144810
Title Characterizing Flotation Response: A Theoretical and Experimental Comparison of Techniques
Degree Master of Science
Department Mining and Minerals Engineering
Advisory Committee
Advisor Name Title
Adel, Gregory T. Committee Chair
Luttrell, Gerald H. Committee Member
Yoon, Roe-Hoan Committee Member
Keywords
  • Release Analysis
  • Flotation
  • Mineral
  • Characterization
Date of Defense 1997-09-12
Availability unrestricted
Abstract
Over the past 40 years, several procedures have been proposed

for characterizing ideal flotation behavior. These procedures,

known as release or tree analysis, generally involve multi-stage

flotation in batch, laboratory flotation cells using various combinations

of rougher, cleaner, and scavenger configurations. Although some

of these procedures have been experimentally compared, there remains

considerable controversy as to which approach best approximates

the ideal flotation response. In this investigation, modeling and simulation

techniques are used in conjunction with experimental studies to

compare three procedures commonly used for characterizing flotation

behavior. These procedures include timed release analysis, simplified

release analysis, and tree analysis. Timed release analysis is shown

to produce superior results to simplified release analysis and tree analysis;

although simplified release analysis appears to be best suited

for locating the "elbow" of the grade-recovery curve. In no case,

do any of these techniques approximate a perfect separation. A

novel technique, known as reverse release analysis, is described

and demonstrated to be superior to the other three procedures. Finally, a theoretical

methodology for obtaining the true ideal separation curve is presented.

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  Vita.pdf 96.60 Kb 00:00:26 00:00:13 00:00:12 00:00:06 < 00:00:01

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