Method for preparing hydrophobic activated carbon by utilizing strong acid type cation exchange resin
A cation exchange, strong acid type technology, applied in chemical instruments and methods, other chemical processes, inorganic chemistry, etc., can solve the problems of VOCs adsorption capacity reduction, blocking activated carbon micropores, etc., to achieve simple process, low carbonization temperature, strong hydrophobicity performance effect
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[0017] The invention uses a strong acid type cation exchange resin to prepare hydrophobic activated carbon, which solves the problem of the reduction of VOCs adsorption capacity caused by water vapor blocking the micropores of activated carbon. If the strong acid type cation exchange resin obtained is hydrogen type, it can be dried directly (it can be dried at 105°C for 2 hours). If it is sodium type, the strong acid type cation exchange resin needs to be converted to hydrogen type under hydrochloric acid. (The conversion process is carried out according to the existing known technology, which is a conventional method), and it is dried and used at 105°C.
[0018] Take 10g hydrogen type strong acid cation exchange resin in N 2 Put it into a tube furnace for carbonization in an atmosphere, and the temperature is controlled as follows:
[0019] ① From room temperature to 300°C, heating up at a rate of 10°C / min;
[0020] ②Hold at 300℃ for 30 minutes;
[0021] ③300℃ to 500℃, heating up at...
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