Fabrication of high exposure nuclear fuel pellets

Details Fabrication of high exposure nuclear fuel pellets Fabrication of high exposure nuclear fuel pellets

1984-01-13

1987-01-20

Lechert, Jr., Stephen J.

Compositions

Radioactive compositions

Nuclear reactor fuel

252636, 252638, 264 05, 264 56, 376182, 376267, 75232, 419 23, 419 36, 419 37, 419 39, 419 57, 419 58, G21C 2102, C09K 1104, B22F 100, B22F 316

Patent

active

046379002

ABSTRACT:
A method is disclosed for making a fuel pellet for a nuclear reactor. A mixture is prepared of PuO.sub.2 and UO.sub.2 powders, where the mixture contains at least about 30% PuO.sub.2, and where at least about 12% of the Pu is the Pu.sup.240 isotope. To this mixture is added about 0.3 to about 5% of a binder having a melting point of at least about 250.degree. F. The mixture is pressed to form a slug and the slug is granulated. Up to about 4.7% of a lubricant having a melting point of at least about 330.degree. F. is added to the granulated slug. Both the binder and the lubricant are selected from a group consisting of polyvinyl carboxylate, polyvinyl alcohol, naturally occurring high molecular weight cellulosic polymers, chemically modified high molecular weight cellulosic polymers, and mixtures thereof. The mixture is pressed to form a pellet and the pellet is sintered.

REFERENCES:
patent: 3121128 (1964-02-01), O'Leary et al.
patent: 4061700 (1977-12-01), Gallivan
patent: 4093682 (1978-06-01), Hrovat et al.
patent: 4094738 (1978-06-01), Chubb
patent: 4138360 (1979-02-01), Gallivan
patent: 4140738 (1979-02-01), Hrovat et al.
patent: 4235740 (1980-11-01), Druckenbrodt et al.
patent: 4256676 (1981-03-01), Kovach
patent: 4264540 (1981-04-01), Butler
patent: 4284593 (1981-08-01), Sutcliffe et al.
patent: 4293507 (1981-10-01), Sutcliffe et al.
patent: 4383953 (1983-05-01), Larson et al.
patent: 4389341 (1983-06-01), Gaines, Jr. et al.
patent: 4427579 (1984-01-01), Gaines, Jr. et al.

Affiliated with

Also associated with

Rating

Fabrication of high exposure nuclear fuel pellets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fabrication of high exposure nuclear fuel pellets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fabrication of high exposure nuclear fuel pellets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2134097