General Atomic Company

Ga Technologies, Inc.

John T Porter, Ii

John H Norman

John L Russell, Jr

Thomas S Roemer

Kenneth H McCorkle

Robert Sharp

Methods and apparatus for separation of uranium isotopes by selective isotopic excitation of photochemically reactive uranyl salt source material at cryogenic temperatures, followed by chemical separation of selectively photochemically reduced U.sup.+4 thereby produced from remaining uranyl source material.

Separation of uranium isotopes

Methods and apparatus for separating krypton isotopes utilizing low temperature selective infrared excitation of .sup.85 krypton difluoride in an isotopic compound mixture. Multiphoton IR excitation and UV excitation techniques are used, as well as cryogenic matrix isolation and inert buffer gas isolation techniques.

Method for separating krypton isotopes

Methods and Apparatus for separation of uranium isotopes by selective isotopic excitation of photochemically reactive uranyl salt source material at cryogenic temperatures, followed by chemical separation of selectively photochemically reduced U.sup.+4 thereby produced from remaining uranyl source material.

Hydrogen is thermochemically produced from water in a cycle wherein a first reaction produces hydrogen iodide and H.sub.2 SO.sub.4 by the reaction of iodine, sulfur dioxide and water under conditions which cause two distinct aqueous phases to be formed, i.e., a lighter sulfuric acid-bearing phase and a heavier hydrogen iodide-bearing phase. After separation of the two phases, the heavier phase containing most of the hydrogen iodide is treated, e.g., at a high temperature, to decompose the hydrogen iodide and recover hydrogen and iodine. The H.sub.2 SO.sub.4 is pyrolyzed to recover sulfur dioxide and produce oxygen.

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Del Mar, CA, United States of America

John T Porter, Ii