Document Type

Thesis

Date of Award

6-30-1962

Degree Name

Master of Science in Chemical Engineering - (M.S.)

Department

Chemical Engineering

First Advisor

Joseph Joffe

Second Advisor

C. L. Mantell

Third Advisor

George C. Keeffe

Abstract

Equilibria in the thiocyanate-methyl isobutyl ketone process for the separation of zirconium and hafnium were studied. The effects of average thiocyanate concentration, feed acidity, and feed zirconium concentration on the separation factor of hafnium and the distribution coefficients of zirconium and hafnium were investigated. The hafnium separation factor was significantly dependent on the feed acidity but only slightly affected by the average thiocyanate concentration. No conclusion was reached about the effect of the feed zirconium conoentration on the hafnium separation factor. The polymerization of thiocyanic acid was found to be strongly dependent on the average thiocyanate concentration.

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