Karen E Dodson

US Patent:

43942695, Jul 19, 1983

Filed:

May 12, 1981

Appl. No.:

6/262831

Inventors:

Othar K. Tallent - Oak Ridge TN
Karen E. Dodson - Knoxville TN
James C. Mailen - Oak Ridge TN

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

G21F 912

US Classification:

210690

Abstract:

A nuclear fuel processing solution containing (1) hydrocarbon diluent, (2) tri-n-butyl phosphate or tri-2-ethylhexyl phosphate, and (3) monobutyl phosphate, dibutyl phosphate, mono-2-ethylhexyl phosphate, di-2-ethylhexyl phosphate, or a complex formed by plutonium, uranium, or a fission product thereof with monobutyl phosphate, dibutyl phosphate, mono-2-ethylhexyl phosphate, or di-2-ethylhexyl phosphate is contacted with silica gel having alkali ions absorbed thereon to remove any one of the degradation products named in section (3) above from said solution.

US Patent:

H6602, Aug 1, 1989

Filed:

Oct 1, 1987

Appl. No.:

7/103149

Inventors:

Othar K. Tallent - Oak Ridge TN
Karen E. Dodson - Knoxville TN
Earl W. McDaniel - Oak Ridge TN

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

G21F 916
C04B 702
C04B 732

US Classification:

252628

Abstract:

A composition and method for fixation or immobilization of aqueous hazardous waste material in cement-based materials (grout) is disclosed. The amount of drainable water in the cured grout is reduced by the addition of an ionic aluminum compound to either the waste material or the mixture of waste material and dry-solid cement-based material. This reduction in drainable water in the cured grout obviates the need for large, expensive amounts of geling clays in grout materials and also results in improved consistency and properties of these cement-based waste disposal materials.