Countercurrent combustion system for preparing radioactive sampl

Details Countercurrent combustion system for preparing radioactive sampl Countercurrent combustion system for preparing radioactive sampl

1977-05-31

1978-09-26

Scovronek, Joseph

Chemistry: physical processes

Physical processes

Crystallization

232303, 422 78, G01N 3112, G01N 3316

Patent

active

041166329

ABSTRACT:
A system for combusting materials containing radioactive nuclides to permit recovery of the radioactive nuclides includes a combustion zone for combusting a sample material containing at least one radioactive nuclide. The combustion products are continuously exhausted from one end of the combustion zone, and a continuous pressurized stream of oxygen-containing gas is introduced into the combustion zone between the exhaust end of the zone and the sample during the combustion thereof. At least a portion of the pressurized oxygen-containing gas stream is directed through the combustion zone in a spiral path toward the sample to circulate at least a portion of the combustion products around the combustion zone as they flow toward the exhaust end of the zone counter to the flow of the spiraling stream of oxygen-containing gas, thereby intimately mixing the combustion products with the oxygen-containing gas in the combustion zone.

REFERENCES:
patent: 2809100 (1957-10-01), Krasl
patent: 2888332 (1959-05-01), Aites
patent: 3002819 (1961-10-01), Brace et al.
patent: 3844716 (1974-10-01), Noakes
patent: 3868221 (1975-02-01), Howard et al.
patent: 3923464 (1975-12-01), Sitek et al.
patent: 3942938 (1976-03-01), Kaartinen

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