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    • 2. 发明授权
    • Production process for refined hydrogen iodide
    • 精制碘化氢的生产工艺
    • US5693306A
    • 1997-12-02
    • US562084
    • 1995-11-22
    • Atsushi UtsunomiyaKenju SasakiYoshinori TanakaMasahiro OmuraNaoki Tomoshige
    • Atsushi UtsunomiyaKenju SasakiYoshinori TanakaMasahiro OmuraNaoki Tomoshige
    • C01B7/13
    • C01B7/135
    • A process for producing refined hydrogen iodide having organic components of 0.2 ppm by volume or less and water of 0.1 ppm by volume or less by contacting crude hydrogen iodide with a zeolite is disclosed. Crude hydrogen iodide is obtained by reducing iodine with a hydrogenated naphthalene, wherein all of the iodine is dissolved in advance in a portion of the hydrogenated naphthalene to prepare an iodine solution, and the reaction is carried out while adding continuously or intermittently the iodine solution to the balance of the hydrogenated naphthalene. The same operation may be repeated in succession using unreacted hydrogenated naphthalene and fresh iodide. The zeolite is contacted in advance with crude hydrogen iodide, the amount of which is at least 1/3 (weight ratio) relative to the amount of the zeolite, to convert impurities of sulfur components contained in the zeolite to hydrogen sulfide, thereby removing the sulfur components. Further, an activated carbon may be combined with the zeolite at the rear stage thereof.
    • 公开了一种通过使粗碘化氢与沸石接触来制造有机成分为0.2ppm(体积)或更少的精制碘化氢和0.1ppm(体积)以下的水的方法。 通过用氢化萘还原碘获得粗碘化氢,其中所有碘预先溶解在氢化萘的一部分中以制备碘溶液,并且在连续或间歇地将碘溶液加入到 氢化萘的平衡。 可以使用未反应的氢化萘和新鲜碘化物连续地重复相同的操作。 预先将沸石与粗的碘化氢接触,其中的碘化氢至少为+ E,相对于沸石的量为1/3 + EE(重量比),将沸石中所含的硫成分的杂质转化为 硫化氢,从而除去硫成分。 此外,活性炭可以在其后段与沸石结合。