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Graphite matrix used for preparation of molded article for storing radioactive waste, comprises graphite and crystalline bonding agent containing salt containing metal chosen from transition metal and metal of specific groups
Graphite matrix used for preparation of molded article for storing radioactive waste, comprises graphite and crystalline bonding agent containing salt containing metal chosen from transition metal and metal of specific groups
A graphite matrix comprises graphite and crystalline bonding agent, and has activity of less than 1010 bq/m 3. The content of graphite is more than 50 vol.% of graphitic matrix. The crystalline bonding agent comprises crystalline inorganic compound(s). The crystalline inorganic compound is salt containing metal(s) having oxidation state of more than 0. The metal is chosen from transition metal, inner transition metal, metal of main group 1 and metal of main group 2. The salt does not contain sulfur-containing compound, preferably nickel sulfide. Independent claims are included for the following: (1) preparation of graphite matrix; (2) use of graphite matrix for preparation of molded article containing graphite matrix and radioactive waste, for storing of radioactive waste; and (3) molded article.
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机译：石墨基质包含石墨和结晶粘合剂，并且具有小于1010bq / m 3的活性。石墨的含量大于石墨基体的50体积％。结晶粘合剂包括结晶无机化合物。结晶无机化合物是具有大于0的氧化态的含盐金属。该金属选自过渡金属，内部过渡金属，主族1的金属和主族2的金属。该盐不包含硫-含化合物，最好是硫化镍。包括以下方面的独立权利要求：（1）制备石墨基体; （2）使用石墨基质制备含有石墨基质和放射性废物的模制品，用于放射性废物的储存; （3）成型品。
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