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Proceedings Paper

Purification of tellurium to 6N using a multistage vacuum distillation method
Author(s): A. M. Hageman; M. J. Harrison; N. Fritz; T. N. Krehbiel; R. White; J. Patenaude; D. S. McGregor
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Paper Abstract

Tellurium (Te) is purified using a multistage vacuum distillation technique. Specially designed quartz ampoules coupled to a 10-6 torr vacuum system are used for one, two, and three stage distillations. The unique quartz design allows removal of residual materials between stages without handling purified material or exposing it to atmospheric conditions. Average deposition of purified material is 0.93 g/min at a distillation temperature of 525°C. The average overall yield per stage is 84% for single stage distillation, 80% for two stages, and 76% for three stages. Glow discharge mass spectrometry testing (GDMS) is used to analyze samples of purified tellurium. GDMS results show 6N purity (99.9999%) is achieved after the three stage distillation process when starting with 4N+ pure material.

Paper Details

Date Published: 24 September 2007
PDF: 7 pages
Proc. SPIE 6707, Penetrating Radiation Systems and Applications VIII, 67070Z (24 September 2007); doi: 10.1117/12.740525
Show Author Affiliations
A. M. Hageman, SMART Lab., Kansas State Univ. (United States)
M. J. Harrison, SMART Lab., Kansas State Univ. (United States)
N. Fritz, SMART Lab., Kansas State Univ. (United States)
T. N. Krehbiel, SMART Lab., Kansas State Univ. (United States)
R. White, SMART Lab., Kansas State Univ. (United States)
J. Patenaude, SMART Lab., Kansas State Univ. (United States)
D. S. McGregor, SMART Lab., Kansas State Univ. (United States)


Published in SPIE Proceedings Vol. 6707:
Penetrating Radiation Systems and Applications VIII
F. Patrick Doty; H. Bradford Barber; Hans Roehrig, Editor(s)

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