Compositions – Radioactive compositions
Patent
1980-12-18
1984-02-14
Hunt, Brooks H.
Compositions
Radioactive compositions
252632, 252635, 75 05A, 75 05AB, 75 05AA, 264 13, B22F 100, B29C 2300, G21F 916, G21F 904
Patent
active
044311648
ABSTRACT:
Heat gelable droplets of a suitable liquid feed material are dielectrically heated to the gelling temperature by exposure to microwave radiation during free fall through a heating zone. The gelled microspheres thus produced are caught and collected in a washing liquid. The microwave radiation is provided through the use of a hollow cavity resonator. A vertical tube which is transparent to microwaves extends through the resonator to delimit the processing zone for the free falling droplets. Frequency control means and a reflected radiation measuring device are associated with the resonator and radiation generation means so that the operation of the system may be closely controlled.
REFERENCES:
patent: 3518328 (1970-06-01), Triggiani et al.
patent: 4060497 (1977-11-01), Huschka et al.
patent: 4184976 (1980-01-01), Zimmer
patent: 4203863 (1980-05-01), Knotik et al.
patent: 4224258 (1980-09-01), Langen et al.
patent: 4242220 (1980-12-01), Sato
Hirschhorn, Introduction to Powder Metallurgy (1969) APMI, p. 30.
Jungo Charles
Ledergerber Guido
Gesellschaft zur Forderung der industrieorientierten Forschung a
Hunt Brooks H.
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