ABSORPTION METHOD AND MESOPOROUS ALUMINA USED FOR THE SAME

    公开(公告)号:US20230321628A1

    公开(公告)日:2023-10-12

    申请号:US18019663

    申请日:2021-08-05

    Abstract: Provided is an absorption method of an element belonging to periods 4 to 6 and groups 3 to 15 of the periodic table. The method includes: preparing mesoporous alumina that satisfies at least one of the following items:

    (1) a surface hydroxyl content is 3.5 mmol/g or more;
    (2) a low-temperature CO2 desorption amount in CO2 thermal desorption amount spectrometry is 5 µmol/g or more; and
    (3) a low-temperature NH3 desorption amount in NH3 thermal desorption amount spectrometry is 25 µmol/g or more; and
    bringing a liquid containing an absorption target element in contact with the mesoporous alumina to absorb the absorption target element in the mesoporous alumina. The absorption target element is at least one type selected from the group consisting of an element belonging to periods 4 to 6 and groups 3 to 15 of the periodic table.

Patent Agency Ranking