DEVELOPMENT OF A PROCESS FOR NITRIC ACID DIGESTION OF BELGIAN CONGO PITCHBLENDE
Technical Report
·
OSTI ID:4236256
The extreme reactivity of Belgiand Congo pitchblende (Q-11) with concentrated nitric acid which is used in the National Lead Cornpandy of Ohio ore digestion operation motivated investigations aimed at developing methods of predigestion treatment which would reduce the digestion activity of this ore. Treatment with various oxidizing agentd proved to be ineffective. From the laboratory investigations a two-stage digestion procedure was developed which involved first reaction with dilute nitric acid, followed by treatment with concentrated nitric acid. This alternative digestion procedure was successfully tested on a plandt basis and was subsequently adopted for routine production digestion of Q-11. (auth)
- Research Organization:
- National Lead Co. of Ohio, Cincinnati
- NSA Number:
- NSA-13-018773
- OSTI ID:
- 4236256
- Report Number(s):
- NLCO-782
- Country of Publication:
- United States
- Language:
- English
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