Solid polymer sorbent for MO-99 extraction and its method of pro

Details Solid polymer sorbent for MO-99 extraction and its method of pro Solid polymer sorbent for MO-99 extraction and its method of pro

1998-02-06

1999-10-05

Lipman, Bernard

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253276, 525377, C08F 830

Patent

active

059625970

ABSTRACT:
A polymer sorbent for the extraction of Mo-99 from the fission byproducts of a uranyl sulfate nuclear-fueled homogeneous-solution nuclear reactor and the method of producing the sorbent are described. This sorbent is produced from a maleic anhydride copolymer and .alpha.-benzoin-oxime. The sorbent is produced by reacting a mixture of maleic anhydride copolymer, a bifunctional organic compound (hydrochinon, diethyleneglycol, hexamethylene diamine, glycerol, ethyleneglycol), and .alpha.-benzoin-oxime in the ratio of 1:(0.25-0.50):(0.75-0.5) in a polar organic solvent (dioxane, dimethyl formamide, or toluene) in the temperature range of 90.degree.-95.degree. C. with constant stirring for 1 to 2 hours. The resultant product is then cooled to room temperature and flushed 3-5 times with cold water. A white stringy product results. This is dried and crushed. Particles of 1-2 mm in diameter are selected for the solid sorbent.

REFERENCES:
patent: 3040006 (1962-06-01), Slocombe et al.
patent: 3488329 (1970-01-01), Johnson
patent: 5093429 (1992-03-01), Moteki et al.

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