Masters Theses

Abstract

"In recent years liquid extraction has become a major industrial method for the separation of liquid solutions. Liquid extraction has proven successful in some separations performed only with great difficulty by other, more common mass-transfer operations. Th e industrial utilization of liquid extraction has resulted in considerable interest in the design and performance correlations of high-capacity, high-efficiency extraction equipment.

Continuous countercurrent columns, filled with various packings, baffles, and plates, have been found to be relatively ineffective in liquid extract on service. The density difference of the contacted phases is generally insufficient to, by itself, cause the intimate contact necessary for a high rate of mass transfer. To surmount these numerous designs have been presented for the addition of mechanical energy to countercurrent extraction columns.

Besides their inherent complexity the principal disadvantages mechanically aided extraction columns are two-fold. While efficiency is high, the column -2- internals necessary to transmit the mechanical generally result in relatively low capacity. Secondly, it has proven hazardous to attempt to scale laboratory-size columns up to industrial units.

The purpose of this investigation was to design, fabricate, and evaluate the performance of a mechanically aided continuous countercurrent extraction column. Mechanical energy was added to the extraction system by reciprocating an axial shaft, about wh ich was wound knitted wire mesh of high void content. The ternaryliquid extracti on system of acetic acid distributed between methyl isobutyl ketone and water was utilized to evaluate the column performance. The column performance was determined as a function of: (1) the direction of solute transfer, (2) frequency of reciprocation, (3) displacement of the knitted wire mesh packing, and (4) column throughput"-Introduction pp. 1-2

Advisor(s)

Dudley Thompson

Committee Member(s)

Illegible Signature
Mailand R. Strunk
Illegible Signature

Department(s)

Chemical and Biochemical Engineering

Degree Name

M.S. in Chemical Engineering

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1963

Pagination

xi, 160 pages

Note about bibliography

Includes bibliographical references (pages 146-156)

Rights

© 1963 Jerry James Carr, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 1534

Print OCLC #

5954723

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