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  • 1.
    [发明专利]USD913011H _ 1973年03月16日
  • [发明专利]US19730428127 _ KANEBO, LTD. 1973年12月26日
    A radiation shielding phenolic fiber comprising (A) a filamentary phenolic polymer consisting predominantly of a sulfonic acid group-containing cured novolak resin and (B) a metallic atom having a great radiation shielding capacity, the metallic atom ...
  • [发明专利]US19730374536 _ GENERAL ELECTRIC CO,US 1973年06月28日
  • [发明专利]US19730425758 _ WESTINGHOUSE ELECTRIC CORPORATION 1973年12月18日
    This invention relates to an improved continuous calcining apparatus for consistently and controllably producing from calcinable reactive solid compounds of uranium, such as ammonium diuranate, uranium dioxide (UO2) having an oxygen to uranium ratio o...
  • [发明专利]US19730322565 _ ATOMIC ENERGY COMMISSION,US 1973年01月10日
    The evolution of hydrogen during dissolution of zirconium and zirconium alloys in an ammonium fluoride and ammonium nitrate solution (Zirflex Process) is suppressed by the presence of copper in the solution, while the rate at which the zirconium is di...
  • [发明专利]US19730378471 _ ATOMIC ENERGY COMMISSION,US 1973年07月12日
  • [发明专利]US19730427426 _ GESELLSCHAFT FUR KERNFORSCHUNG M.B.H 1973年12月21日
    Pure monocarbides, or pure mononitrides or carbonitrides of metals are prepared by first forming a mixture of carbon with an oxalate of the metals and thermally decomposing the metal oxalate in the presence of the carbon by a stream of hydrogen. The h...
  • [发明专利]US19730398569 _ MINNESOTA MINING AND MANUFACTURING COMPANY 1973年09月18日
    Tagging explosives by incorporating microparticles of a tack-free organic carrier, which microparticles have a distinctive geometric shape 1-250 micrometers in size. The microparticles contain tagging elements in uniform amounts of at least 0.1% of th...
  • [发明专利]US19730384172 _ GESELLSCHAFT FUR KERNFORSCHUNG M.B.H. 1973年07月31日
    A method of preparation for non-polluting storage of liquids containing phosphoric acid ester and hydrocarbons used in the reprocessing of spent nuclear fissile and/or fertile materials. The hydrocarbons are recycled for the production of fresh phosph...
  • [发明专利]US19730376847 _ WESTINGHOUSE ELECTRIC CORPORATION 1973年07月05日
    A three stage fluidized bed process for converting uranium hexafluoride (UF6) to a ceramic-grade uranium dioxide (UO2) powder by first, reacting hydrogen and steam with UF6 in a first fluidized bed in a temperature range of from about 475 DEG to 600 ...
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