Investigation of methods for producing reactor-grade zirconium oxide from a zirconium-bearing chloride-sulfate strip liquor solution

MacDonald, D. J. (David J.); Defilippi, C. E. (Carl E.); Henry, H. G. (Helen G.)

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CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners. As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.

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Investigation of methods for producing reactor-grade zirconium oxide from a zirconium-bearing chloride-sulfate strip liquor solution

1984
By MacDonald, D. J. (David J.) ; Defilippi, C. E. (Carl E.) ; Henry, H. G. (Helen G.)
Series: Mining Publications

[PDF-579.60 KB]

English

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Personal Author:

MacDonald, D. J. (David J.) ; Defilippi, C. E. (Carl E.) ; Henry, H. G. (Helen G.)

MacDonald, D. J. (David J.) ; Defilippi, C. E. (Carl E.) ; Henry, H. G. (Helen G.) Less -
Corporate Authors:

United States. Bureau of Mines.
Description:

"The Bureau of Mines investigated two alternative methods for treating a zirconium-bearing chloride-sulfate strip liquor to obtain reactor-grade zro2. One method involves neutralization with nh3 and the other hydrothermal precipitation. The strip liquor was derived from zircon sand by a Bureau of Mines method for separating zirconium and hafnium via solvent extraction with a Tertiary amine. Neutralization with nh3 to precipitate hydrous zirconium oxide required 0.9 to 1.1 G nh3 per gram of zirconium. The nh3 can be recovered for recycle. Zro2 that met reactor-grade specifications was produced by precipitation with nh3. Hydrothermal precipitation of zro2 from strip liquor required that the solution be maintained at 260 deg c and 680 psi for 10 min and in a noncorrodible pressure vessel. In bench-scale experiments both methods gave zirconium recoveries greater than 99 pct." - NIOSTHTIC-2

NIOSHTIC no. 10003307
Series:

Mining Publications
Subseries:

Report of Investigations
Document Type:

Text
Genre:

Report
Pages in Document:

9 numbered pages
NIOSHTIC Number:

10003307
Resource Number:

RI 8850
Collection(s):

National Institute for Occupational Safety and Health
Main Document Checksum:

[+]

urn:sha-512:eeaed984184a3793afc08cfa5ecad1a11e0c8a8ddee102a96b31bdad507b15b5e24178062b0a08878bcc77883536accf859919ceccadd56ca42e8899f7bcdd17
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Investigation of methods for producing reactor-grade zirconium oxide from a zirconium-bearing chloride-sulfate strip liquor solution

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