Other

General Electric Company

The United States of America as Represented by the United States

Hotcan International, Ltd.

Dean B James

Larry D Anstine

John Paul Peterson, Jr

Walter Gill Keith

John Cecil Colter

Reza Akbari-Kenari

Edward A Melaika

An exothermic, hydratable fuel mixture for a self-heating food container comprises particles of a base such as lime and an acid such as oxalic acid. When water is added to the mixture, exothermic heat is generated by hydration of the lime and neutralization reaction between the lime and the acid. Mixtures of bases and mixtures of acids can be used to optimize the heating characteristics of the fuel mixture.

Acid-base fuels for self heating food containers

An exothermically hydrated fuel for a self-heating food container comprises particles of a hard quicklime that has been calcined at a temperature above 1,400.degree. C., such as from 1,410.degree. C. to 1,500.degree. C. The fuel can also contain at least 10% based on the weight of the hard particles of softer, more porous particles of quicklime calcined at a temperature above 1,250.degree. C. and/or particles of an anhydrous acid that exothermically reacts with quicklime to form a non-toxic, non-hazardous salt such as oxalic acid.

Exothermic compositions and container for heating food

An improved method for decontaminating the coolant system of water-cooled nuclear power reactors and for regenerating the decontamination solution. A small amount of one or more weak-acid organic complexing agents is added to the reactor coolant, and the pH is adjusted to form a decontamination solution which is circulated throughout the coolant system to dissolve metal oxides from the interior surfaces and complex the resulting metal ions and radionuclide ions. The coolant containing the complexed metal ions and radionuclide ions is passed through a strong-base anion exchange resin bed which has been presaturated with a solution containing the complexing agents in the same ratio and having the same pH as the decontamination solution. As the decontamination solution passes through the resin bed, metal-complexed anions are exchanged for the metal-ion-free anions on the bed, while metal-ion-free anions in the solution pass through the bed, thus removing the metal ions and regenerating the decontamination solution.

Nuclear reactor cooling system decontamination reagent regeneration

An improved process for the conversion of gaseous uranium hexafluoride to a uranium oxide rich composition in the presence of an active flame in a reaction zone is achieved by introducing a first gaseous reactant comprising a mixture of uranium hexafluoride and an oxygen-containing carrier gas and a second gaseous reactant comprising a reducing gas, the reactants being separated by a shielding gas as introduced to the reaction zone. The shielding gas temporarily separates the gaseous reactants and temporarily prevents substantial mixing and reacting of the gaseous reactants. The flame occurring in the reaction zone is maintained away from contact with the inlet introducing the mixture to the reaction zone. The process also includes introducing an oxygen-containing gas as a third gaseous reactant at a time when the uranium hexafluoride conversion to uranium dioxide is substantially complete resulting in oxidizing the uranium oxide composition to a higher oxide of uranium and conversion of the residual reducing gas to its oxidized form. During the process there is practiced the improvement of introducing an atomized fluid having a high latent heat of evaporation so that the atomized fluid directly enters the reaction zone and the introduction can be made at a location so that the atomized fluid enters the primary flame, the secondary flame, or both the primary and secondary flames, or downstream from the secondary flame. The atomized fluid can be introduced alone or with a carrier gas such as an oxygen-containing gas.

Growing community of inventors

Saratoga, CA, United States of America

Dean B James