Method for binding liquid-containing radioactive wastes and knea

Details Method for binding liquid-containing radioactive wastes and knea Method for binding liquid-containing radioactive wastes and knea

1979-11-14

1981-09-15

Jenkins, Robert W.

Agitating

Rubber or heavy plastic working

With specified vent means

366 76, 366138, 366144, B29B 106, B01F 1506

Patent

active

042894077

ABSTRACT:
Liquid-containing radioactive wastes are bound into thermoplastic material by introducing particles of thermoplastic material at a non-sticking temperature into a kneading machine, heating the thermoplastic material in the absence of radioactive wastes to at least 100.degree. C., adding the liquid-containing wastes to the heated thermoplastic material, mixing and concurrently increasing the temperature of the mixture to a temperature of about 200.degree. C. or more to vaporize liquid in the mixture, maintaining the mixture at a vaporization temperature to dry to the mixture, releasing evolved vapors and discharging the dried mixture from the kneading machine. Difficulties due to clogging of the kneading machine and fluctuations in the consistency of the dried end product are minimized.

REFERENCES:
patent: 3495808 (1970-02-01), Klein
patent: 3737151 (1973-06-01), Schaeffer
patent: 3917507 (1975-11-01), Skidmore
patent: 3963558 (1976-06-01), Skidmore
patent: 4051212 (1977-09-01), Grigat
patent: 4100244 (1978-07-01), Nonaka

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