Process for the recovery of molybdenum-99 from an irradiated uranium alloy target

Patent 4701308 Issued on October 20, 1987. Estimated Expiration Date:

December 10, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3382152

3799883

3821351

3900551

Molybdenum recovery
Patent #: 3933971
Issued on: 01/20/1976
Inventor: Baucom

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Issued on: 06/13/1978
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Inventors

Assignee

Commissariat a l'Energie Atomique

Application

No. 06/806815 filed on 12/10/1985

US Classes:

423/2, Radioactive metal (At. No. 84+ or radioactive isotope of another metal)252/645, For tracing, tagging, or testing423/9Organo-nitrogen solvent

Examiners

Primary: Miller, Edward A.

Attorney, Agent or Firm

Oblon, Fisher, Spivak, McClelland, & Maier

International Classes

C01G 39/00 (20060101)
C22B 3/00 (20060101)
C22B 3/32 (20060101)
G21G 1/08 (20060101)
G21C 19/42 (20060101)
G21C 19/46 (20060101)
G21G 1/00 (20060101)

Foreign Application Priority Data

1984-12-28 FR

Abstract

The invention relates to a process for the recovery of molybdenum-99 from an irradiated uranium alloy target.This process comprises the following stages:(a) dissolving the irradiated uranium alloy target in sulphuric acid,(b) separating the iodine and tellurium present in the thus obtained solution,(c) oxidizing the molybdenum-99 present in the Mo (VI) solution, and(d) extracting the thus oxidized molybdenum-99 with a hydroxamic acid of formula: ##STR1## in which R is a radical chosen from the group including straight or branched-chain alkyl radicals, the phenyl radical, phenyl radicals substituted by at least one alkyl radical, arylalkyl radicals and the cyclohexyl radical and R' is a hydrogen atom or an alkyl radical.The hydroxamic acid can be tri-n-butylacetohydroxamic acid and the molybdenum recovered can be used in a technetium generator for medical purposes.