Method for testing the radioactivity of objects containing metal

Chemistry: analytical and immunological testing – Including use of radioactive properties

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2041531, 250303, 252626, 436 73, 436174, 436182, 436183, G01N 2300

Patent

active

051282666

ABSTRACT:
Radioactively contaminated objects are placed into a borofluoric acid bath following a rough spot test and are precipitated in a measurable geometry on the cathode plates in the course of an electrolytic process, for example. In the course of the subsequent testing, the metals lying below a pre-determined maximum value of radioactive emissions are separated and supplied to the waste reclamation. The materials lying above this threshold value during the spot testing are first decontaminated and then placed in the acid bath. The borofluoric acid is not used up in this process and remains in the system. It is possible to use already radioactively contaminated boric acid from pressurized water reactors, to which it is merely required to add fluoric acid and to distill, for generating borofluoric acid. The method in accordance with the invention reduces the radioactive waste and reduces the testing and administrative effort required for the release of the non-radioactive materials.

REFERENCES:
patent: 3341304 (1967-09-01), Newby
patent: 3383183 (1968-05-01), Grant
patent: 3409413 (1968-11-01), Burns et al.
patent: 3565707 (1971-02-01), Radimer et al.
patent: 3873362 (1975-03-01), Mihram et al.
patent: 3891741 (1975-06-01), Carlin et al.
patent: 3965237 (1976-06-01), Paige
patent: 4086325 (1978-04-01), Cordier et al.
patent: 4217192 (1980-08-01), Lerch et al.
patent: 4443269 (1984-04-01), Capella
patent: 4500449 (1985-02-01), Kuhnke et al.
patent: 4530723 (1985-07-01), Smeltzer et al.
patent: 4537666 (1985-08-01), Murray et al.
patent: 4620947 (1986-11-01), Carlson
patent: 4686019 (1987-08-01), Ryan et al.
patent: 4701246 (1987-10-01), Fujita et al.
patent: 4828759 (1989-05-01), Hanulik
patent: 4933113 (1990-06-01), Hanulik
"Dekontamination eines Reaktor-Kuhlwasserkreislaufs am Beispiel des Forschungsreaktors WWR-S in Rossendorf:", II. Unger and D. Westphal, Kernenergie, pp. 285-290, Dec. 11, 1968.
Hall, Nathaniel et al. "Stripping Metallic Coatings." Metal Finishing Guidebook and Directory. vol. 78: No. 1a Mid-Jan., 1980: 505.

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