Wet recycling process for impregnated active carbon by extractio

Details Wet recycling process for impregnated active carbon by extractio Wet recycling process for impregnated active carbon by extractio

1998-03-19

2000-01-11

Niebling, John F.

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Treating with a liquid or treating in a liquid phase,...

502 22, 502 33, B01J 2034

Patent

active

06013593&

ABSTRACT:
A wet recycling method for impregnated active carbon used to remove radioactive organic iodide in a nuclear power plant by extracting impregnated substance and radioactive organic iodide from the used impregnated active carbon with an acetonitrile solution and reproducing active carbon to be used in preparing impregnated active carbon, the filtered extractive solution being distilled to obtain pure acetonitrile for the use purpose as an extractive solution, the impregnated substance and radioactive organic iodide extracted in a small amount of solid, thus reducing the volume of the waste impregnated active carbon greatly to decrease solid waste material and at the same time recycle materials.

REFERENCES:
patent: 3720626 (1973-03-01), Benzaria et al.
patent: 4111833 (1978-09-01), Evans
patent: 5719093 (1998-02-01), Park et al.

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