catalyst - a substance added to a system of reactants which will accelerate the desired reactions, while emerging virtually unaltered from the process. The catalyst allows the reaction to take place at a temperature at which the uncatalysed reaction would proceed too slowly for practical purposes.
Tahke katalüsaatori aktiivsust saab suurendada, kui ta paigutada poorsele kandjale (nt. pimsile või aktiivsöele) või viia kõrgdisperssesse vormi (nt. pulbristada).
Supports for catalysts, consisting of porous cordierite or mullite ceramic pieces, of an overall volume not exceeding 65 l, having, per cm2 of the cross-section, not less than one continuous channel which may be open at both ends or stopped at one end ...
