Title:
ACTIVATED CARBON FIBER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/057247
Kind Code:
A1
Abstract:
An activated carbon fiber and preparation method therefor. The activated carbon fiber has an ash content of 0.8-3 wt%, a specific surface area of 1000 m2/g-2200 m2/g, a total pore volume of 0.4120-0.8370 cc/g, a 1-2 nm pore volume ratio of 28%-75%, and a 200 mg/m3 xylene adsorption capacity of 20%-45%. The preparation method for the activated carbon fiber comprises: impregnating raw materials using a phosphoric acid aqueous solution, drying, carbonizing, cooling, washing and drying to obtain the activated carbon fiber. The phosphoric acid aqueous solution has a mass fraction of 5%-13%. According to the activated carbon fiber and the preparation method therefor, phosphoric acid can be repeatedly permeated into the interior of the fiber without sticking, the production process is continuously carried out, the production efficiency is high, production costs are low, and the obtained activated carbon fiber has excellent performance.
Inventors:
LIANG PENG (CN)
WAN YUELIANG (CN)
CHEN BAOLEI (CN)
LI QIANG (CN)
ZHI LIPENG (CN)
QIN LING (CN)
LI ZHIKAI (CN)
WAN YUELIANG (CN)
CHEN BAOLEI (CN)
LI QIANG (CN)
ZHI LIPENG (CN)
QIN LING (CN)
LI ZHIKAI (CN)
Application Number:
PCT/CN2020/105817
Publication Date:
April 01, 2021
Filing Date:
July 30, 2020
Export Citation:
Assignee:
QINGDAO HUASHIJIE ENVIRONMENT TECH CO LTD (CN)
International Classes:
B01J20/20; C01B32/342; D01F9/16
Foreign References:
| CN101121512A | 2008-02-13 | |||
| CN104016343A | 2014-09-03 | |||
| CN106276897A | 2017-01-04 | |||
| CN102140709A | 2011-08-03 | |||
| CN103225133A | 2013-07-31 | |||
| US20100202957A1 | 2010-08-12 |
Other References:
FU, RUOWEN ET AL.: "THE CARBONIZATION-ACTIVATION MECHANISM OF VISCOSE-FIBER BASED ACTIVATED CARBON FIBER ACTIVATED WITH PHOSPHORIC ACID", LON EXCHANGE AND ADSORPTION, vol. 17, no. 3, 30 June 2001 (2001-06-30), ISSN: 1001-5493
Attorney, Agent or Firm:
BEIJING KANGSHENG INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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