Title:
ACTIVATED CARBON
Document Type and Number:
WIPO Patent Application WO/2023/032633
Kind Code:
A1
Abstract:
A problem of the present invention is to provide activated carbon with high mechanical strength and outstanding trihalomethane filtration ability. Activated carbon in which a pore volume A of pore widths in the range of 1.0 nm or less, from among pore volumes calculated using the QSDFT method from a nitrogen desorption isotherm, is 0.23 cc/g or more and 0.25 cc/g or less, a pore volume B of pore widths in the range of 1.5 nm or more and 2.5 nm or less, from among pore volumes calculated using the QSDFT method from the nitrogen desorption isotherm, is more than 0.12 cc/g and 0.19 cc/g or less, and the specific surface area is 1000 m2/g or more and 1200 m2/g or less.
Inventors:
SUGAWARA KAZUOMI (JP)
NAKANO TOMOYASU (JP)
SHIMIZU HIROKAZU (JP)
SAKAI KEIJI (JP)
ASADA TAKUYA (JP)
NAKANO TOMOYASU (JP)
SHIMIZU HIROKAZU (JP)
SAKAI KEIJI (JP)
ASADA TAKUYA (JP)
Application Number:
PCT/JP2022/030637
Publication Date:
March 09, 2023
Filing Date:
August 10, 2022
Export Citation:
Assignee:
ADALL CO LTD (JP)
UNITIKA LTD (JP)
OSAKA GAS CHEMICALS CO LTD (JP)
UNITIKA LTD (JP)
OSAKA GAS CHEMICALS CO LTD (JP)
International Classes:
C01B32/336; B01J20/20; B01J20/28; B01J20/30; C02F1/28; D01F9/15
Domestic Patent References:
| WO2018116859A1 | 2018-06-28 | |||
| WO2017213057A1 | 2017-12-14 | |||
| WO2019244903A1 | 2019-12-26 |
Foreign References:
| CN105217625A | 2016-01-06 |
Other References:
YOSHIKAWA YASUNORI; TESHIMA KATSUYA; FUTAMURA RYUSUKE; TANAKA HIDEKI; IIYAMA TAKU; KANEKO KATSUMI: "Structural adsorption mechanism of chloroform in narrow micropores of pitch-based activated carbon fibres", CARBON, ELSEVIER OXFORD, GB, vol. 171, 18 August 2020 (2020-08-18), GB , pages 681 - 688, XP086397843, ISSN: 0008-6223, DOI: 10.1016/j.carbon.2020.08.020
VELASCO LETICIA F.; GUILLET-NICOLAS RéMY; DOBOS GáBOR; THOMMES MATTHIAS; LODEWYCKX PETER: "Towards a better understanding of water adsorption hysteresis in activated carbons by scanning isotherms", CARBON, ELSEVIER OXFORD, GB, vol. 96, 20 October 2015 (2015-10-20), GB , pages 753 - 758, XP029314433, ISSN: 0008-6223, DOI: 10.1016/j.carbon.2015.10.017
no. 15554-47-9
VELASCO LETICIA F.; GUILLET-NICOLAS RéMY; DOBOS GáBOR; THOMMES MATTHIAS; LODEWYCKX PETER: "Towards a better understanding of water adsorption hysteresis in activated carbons by scanning isotherms", CARBON, ELSEVIER OXFORD, GB, vol. 96, 20 October 2015 (2015-10-20), GB , pages 753 - 758, XP029314433, ISSN: 0008-6223, DOI: 10.1016/j.carbon.2015.10.017
no. 15554-47-9
Attorney, Agent or Firm:
TANAKA, Junya et al. (JP)
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