Abstract: Polychlorinated biphenyls are removed from oil by extracting the biphenyls into methanol. The mixture of methanol and extracted biphenyls is distilled to separate methanol therefrom, and the methanol is recycled for further use in extraction of biphenyls from oil.
Type:
Grant
Filed:
March 17, 1982
Date of Patent:
June 7, 1983
Assignee:
The United States of America as represented by the United States Department of Energy
Inventors:
Gus T. Cook, Stephen K. Holshouser, Richard M. Coleman, Charles E. Harless, Walter N. Whinnery, III
Abstract: An object restraint system is provided with a collar for gripping the object and a plurality of struts attached to the collar and to anchor means by universal-type joints, the struts being arranged in tangential relation about the collar.
Type:
Grant
Filed:
October 14, 1981
Date of Patent:
May 24, 1983
Assignee:
The United States of America as represented by the U.S. Department of Energy
Abstract: Nuclear fuel is made by contacting an aqueous solution containing an actinide salt with an aqueous solution containing ammonium hydroxide, ammonium oxalate, or oxalic acid in an amount that will react with a fraction of the actinide salt to form a precipitate consisting of the hydroxide or oxalate of the actinide. A slurry consisting of the precipitate and solution containing the unreacted actinide salt is formed into drops which are gelled, calcined, and pressed to form pellets.
Type:
Grant
Filed:
April 24, 1981
Date of Patent:
May 10, 1983
Assignee:
The United States of America as represented by the United States Department of Energy
Abstract: Nuclear fuel microspheres are made by sintering microspheres containing uranium dioxide and uncombined carbon in a 1 mole percent carbon monoxide/99 mole percent argon atmosphere at 1550.degree. C. and then sintering the microspheres in a 3 mole percent carbon monoxide/97 mole percent argon atmosphere at the same temperature.
Type:
Grant
Filed:
December 17, 1980
Date of Patent:
January 4, 1983
Assignee:
The United States of America as represented by the Department of Energy
Abstract: Nuclear fuel processing solution consisting of tri-n-butyl phosphate and dodecane, with a complex of uranium, plutonium, or zirconium and with a solvent degradation product such as di-n-butyl phosphate therein, is contacted with an aqueous solution of a salt formed from hydrazine and either a dicarboxylic acid or a hydroxycarboxylic acid, thereby removing the aforesaid complex from the processing solution.
Type:
Grant
Filed:
December 17, 1980
Date of Patent:
November 9, 1982
Assignee:
The United States of America as represented by the United States Department of Energy
Inventors:
Othar K. Tallent, David J. Crouse, James C. Mailen
Abstract: Apparatus for smothering a liquid sodium fire comprises a pan, a perforated cover on the pan, and tubes depending from the cover and providing communication between the interior of the pan and the ambient atmosphere through the perforations in the cover. Liquid caught in the pan rises above the lower ends of the tubes and thus serves as a barrier which limits the amount of air entering the pan.
Type:
Grant
Filed:
December 19, 1980
Date of Patent:
November 2, 1982
Assignee:
The United States of America as represented by the United States Department of Energy
Abstract: A seal assembly comprises a tube rotatable about its longitudinal axis and having two longitudinally spaced flanges projecting radially outwardly from the outer surface thereof. Slidably positioned against one of the flanges is a seal ring, and disposed between this seal ring and the other flange are two rings that are forced apart by springs, one of the latter rings being attached to a flexible wall.
Type:
Grant
Filed:
March 13, 1981
Date of Patent:
August 10, 1982
Assignee:
The United States of America as represented by the United States Department of Energy
Inventors:
J. Giles Morgan, Mark J. Rennich, Marvin E. Whatley
Abstract: Magnetic and non-magnetic materials are separated by passing stream thereof past coaxial current-carrying coils which produce a magnetic field wherein intensity varies sharply with distance radially of the axis of the coils.
Type:
Grant
Filed:
November 6, 1980
Date of Patent:
July 20, 1982
Assignee:
The United States of America as represented by the United States Department of Energy
Abstract: Gas produced from coal and containing CH.sub.4, CO, CO.sub.2, H.sub.2 and H.sub.2 S is contacted with CO.sub.2 scrub liquid to form (1) a liquid CO.sub.2 stream containing as solutes CH.sub.4, H.sub.2 S and minor portions of the CO and H.sub.2, and (2) a gas stream containing CO.sub.2 and major portions of the CO and H.sub.2, the CO and H.sub.2 in this stream being recycled to the means which produces gas from coal, and CO.sub.2 in the stream being recycled to the scrub liquid. The solute-bearing liquid CO.sub.2 stream is fractionated into (1) a liquid CO.sub.2 stream containing CH.sub.4 and H.sub.2 S, and (2) a H.sub.2 /CO gas stream which is recycled into contact with the scrub liquid. The last-mentioned liquid CO.sub.2 stream is fractionated into (1) a CH.sub.4 /CO.sub.2 gas stream the CO.sub.2 of which is recycled to the scrub liquid, and (2) a liquid CO.sub.2 stream containing H.sub.2 S, and CO.sub.2 of this stream is also recycled to the scrub liquid.
Type:
Grant
Filed:
October 27, 1980
Date of Patent:
June 22, 1982
Assignee:
The United States of America as represented by the United States Department of Energy
Inventors:
Ray E. Barker, Charles D. Scott, Allen D. Ryon