Patent ID: 9387973
Filing Date: 2016-07-12
CPC Classification: A23L,B01D,B01J,B22F,B65D,C22C

Claim Text:
1. An oxygen absorbing agent comprising an alloy powder (Y), the alloy powder (Y) having been obtained by subjecting an alloy powder (X) having a particle diameter in a range of 5 to 200 μm and comprising (A) at least one transition metal selected from the group consisting of manganese, iron, platinum, and copper group metals and (B) at least one metal selected from the group consisting of aluminum, zinc, tin, lead, magnesium, and silicon to treatment with an acid or an alkali aqueous solution to elute and remove at least a part of the component (B) in the alloy powder (X), wherein the specific surface area, as measured by a BET method, of the alloy powder (Y) obtained by eluting and removing at least a part of the component (B) is a least 20 m the alloy powder (Y) has an X-ray diffraction profile satisfying a diffraction peak relationship of S