CARBON BLACK MOLDED BODY AND A METHOD FOR PRODUCING THE SAME

    公开(公告)号:US20220289983A1

    公开(公告)日:2022-09-15

    申请号:US17826777

    申请日:2022-05-27

    IPC分类号: C09C1/56

    摘要: The present invention provides a carbon black molded body having different pore structure from conventional carbon black. A carbon black molded body of the present invention includes a peak M of a pore volume being exist in a specified pore diameter in the specified Log differential pore volume distribution; a specified half band width of the peak M; a specified ratio of the half band width/an area-based median diameter; and a specified difference between a maximum value and a minimum value of a Log differential pore volume.

    METHOD FOR REMOVING FOREIGN MATERIAL FROM CARBONACEOUS MATERIAL DISPERSION

    公开(公告)号:US20220073752A1

    公开(公告)日:2022-03-10

    申请号:US17470417

    申请日:2021-09-09

    摘要: A method for efficiently removing non-magnetic foreign material, from a carbonaceous material dispersion in which carbonaceous material particles are dispersed in a dispersing medium, includes applying the dispersion to a primary filter a specified number of times in circulation, the primary filter including at least one filter device; and applying the dispersion treated with the primary filter to a secondary filter a single time, the secondary filter including at least two filter devices arranged in series. Each respective filter device to be used satisfying following conditions: (a) a variation of cumulative undersize distribution Q [%] with respect to a reference particle diameter and a variation of non-volatile content, before and after passing the carbonaceous material dispersion, being not more than 0.1%, respectively; and (b) a removal rate of particles with a threshold particle diameter being not less than 20%.