METHOD OF PREPARING ENHANCED POROUS CARBON

摘要

The present invention relates to a method of preparing porous carbon. In particular, the carbon exhibits enhanced adsorption selectivity for low molecular weight aldehydes, such a formaldehyde, and for hydrogen cyanide. The method comprises applying magnesium carbonate to carbon prior to polycondensation and/or carbonisation, so that the porous carbon becomes impregnated with magnesium carbonate. The carbon is suitable for use in smoke filtration.