A predictive model for particle size distribution and yield for Bayer precipitation and classification /

actual process. The resulting model is currently in use by

Bibliographic Details
Main Author: Kapraun, Christopher Michael
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1996.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:actual process. The resulting model is currently in use by
Alcoa's Point Comfort Operations' staff.
alterations to the actual plant. This simulator allows for
and solid size distributions throughout the precipitation
classification system including the determination of particle
friendly tool. The interface also allows engineers to view
included in the model for adaptation to other facilities.
includes useful analysis tools such as a head tank specific
Language development package to calculate stream compositions
make educated process changes by being able to predict
nucleation, or the formation of new growth centers, in
of test simulations were also run on the model to determine
operation to allow the forecasting of a number of relevant
precipitation and classification model in an alumina refining
precipitation rate controller and a perfect product removal
precipitation vessels with the Advanced Computer Simulation
principles and techniques for particle kinetics including
process parameters, such as the particle size distribution of
properties during simulation. This tool permits engineers to
results of changes in operations before transferring the
scheme for calculating ideal operating parameters. A variety
series of gravity classifiers and updates recycled seed
simulating particle growth, collision and agglomeration, and
sizes and yields by numerically integrating the unsteady
smelting grade alumina production but provisions were
solids across the system and the process productivity, or
state balance equations for each vessel. This model was
The model's input and output interfaces have been developed
the qualitative and quantitative accuracy of the model to the
the quantitative analysis of the precipitation and
This project implements a dynamic alumina hydrate continuous
tuned for use at Alcoa's Point Comfort Operations for regular
unit. The model also predicts settling characteristics for a
using a graphical user interface to provide a more user
values as they might appear in lab analyses. This model also
yield, using a PC. The model uses basic conservation
Item Description:"Major subject: Chemical Engineering".
Vita.
Physical Description:viii, 88 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references: pages 73-75.