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Title: REGENERATION OF REACTOR FUEL ELEMENTS

Abstract

A process of concentrating by electrolysis the uraatum and/or plutonium of an aluminum alloy containing these actinides after the actinide has been partially consumed by neutron bombardment in a reactor is given. The alloy is made the anode in a system having an aluminum cathode and a cryolite electrolyte. Electrolysis from 22 to 28 ampere-hours removes a sufficient quantity of aluminum from the alloy to make it suitable for reuse.

Inventors:
;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4155813
Patent Number(s):
US 2930738
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-14-015720
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; ACTINIDES; ALUMINUM ALLOYS; ALUMINUM FLUORIDES; BEAMS; ELECTROLYSIS; ELECTROLYTES; FUEL ELEMENTS; NEUTRONS; PLUTONIUM; REPROCESSING; RESEARCH REACTORS; SEPARATION PROCESSES; SODIUM FLUORIDES; URANIUM

Citation Formats

Roake, W.E., and Lyon, W.L.. REGENERATION OF REACTOR FUEL ELEMENTS. United States: N. p., 1960. Web.
Roake, W.E., & Lyon, W.L.. REGENERATION OF REACTOR FUEL ELEMENTS. United States.
Roake, W.E., and Lyon, W.L.. 1960. "REGENERATION OF REACTOR FUEL ELEMENTS". United States. doi:.
@article{osti_4155813,
title = {REGENERATION OF REACTOR FUEL ELEMENTS},
author = {Roake, W.E. and Lyon, W.L.},
abstractNote = {A process of concentrating by electrolysis the uraatum and/or plutonium of an aluminum alloy containing these actinides after the actinide has been partially consumed by neutron bombardment in a reactor is given. The alloy is made the anode in a system having an aluminum cathode and a cryolite electrolyte. Electrolysis from 22 to 28 ampere-hours removes a sufficient quantity of aluminum from the alloy to make it suitable for reuse.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1960,
month = 3
}
  • A process is described for concentrating uranium and/or plutonium metal in aluminum alloys in which the actinide content was partially consumed by neutron bombardinent. Two embodiments are claimed: Either the alloy is heated, together with zinc chloride to at least 1000 deg C whereby some aluminum, in the form of aluminum chloride, and any zinc formed volatilize; or else aluminum fluoride is added and reacted at 800 to 1000 deg O and substmospheric pressure whereby pant of the aluminum volatilizes and aluminum subfluoride.
  • A process is given for concentrating by electrolysis the uranium and/or ploutonium of an aluminum alloy con taining these actinides, after the actinide has been partially consumed by neutron bombardment in a reactor. The alloy is made the anode in a system having an aluminum cathode and cryolite electrolyte. Electrolysis from 22 to 26 ampere-hours removes a sufficient quantity of aluminum from the alloy to make it suitable for reuse.
  • A method of testing the circulation of a bulk charge of fuel elements in the core of a pebble bed type of nuclear reactor comprises increasing the electrical conductivity of a number of fuel elements and then injecting the marked elements into a bulk charge of other unmarked elements having a lower electrical conductivity at predetermined positions in the core of a nuclear reactor and at measured times. The marked fuel elements are subsequently detected electromagnetically as they are carried in the bulk charge of unmarked elements through an electromagnetic field generated by a detection and measurement station. The elementsmore » are marked by including a material having a greater electrical conductivity than the remainder of the element and this material may be coated on the surface of the elements or incorporated in the body of the elements.« less