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    • 3. 发明专利
    • Method for manufacturing oxygen absorbent
    • 制造氧气吸收剂的方法
    • JP2014030784A
    • 2014-02-20
    • JP2012172208
    • 2012-08-02
    • Mitsubishi Gas Chemical Co Inc三菱瓦斯化学株式会社
    • MATSUSHITA NATSUKOSHIMODA EMITANAKA HIROKAZUIWAI TATSUO
    • B01J20/30A23L3/3436B01D53/14B01J20/02B01J20/28B22F1/02B65D81/26C08K9/00C08L101/00
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing an oxygen absorbent capable of maintaining stable oxygen absorbing properties without excessive heat evolution in the atmosphere.SOLUTION: The method for manufacturing an oxygen absorbent includes: treating an alloy (X) which includes at least one transition metal (A) selected from the group consisting of the manganese group, the iron group, the platinum group, and the copper group, and at least one metal (B) selected from the group consisting of aluminum, zinc, tin, lead, magnesium, and silicon, with aqueous acid or alkaline solution so as to elute at least a portion of the component (B) for removal; and oxidizing the surface of an alloy (Y) having the portion of at least partially removed component (B) with oxygen gas so as to form a coating film of metal oxide on at least one part of the surface of the alloy (Y).
    • 要解决的问题:提供一种能够保持氧吸收性能而不会在气氛中过度放热的氧吸收剂的制造方法。解决方案:氧吸收剂的制造方法包括:处理至少包括 选自锰基,铁基,铂基和铜基的一种过渡金属(A)和选自铝,锌,锡,铅中的至少一种金属(B) ,镁和硅与酸或碱性溶液的水溶液洗脱,以洗脱至少部分组分(B)以除去; 以及用氧气使具有至少部分去除的组分(B)的部分的合金(Y)的表面氧化,以在合金(Y)的至少一部分表面上形成金属氧化物的涂膜。