Patent ID: 6300466
Filing Date: 2001-10-09
Classification: C01B

Abstract:
A process for the production of activated carbon, having porous sintered bodies from polymers with aromatic nuclei, comprising the following steps:a) mixing the polymer with concentrated H.sub.2 SO.sub.4 at ambient temperature and heating the mixture to a sulphonation temperature in the range of between 110 and 160.degree. C., at a rate between 3 and 20 K/min wherein the ratio of the mass of concentrated H.sub.2 SO.sub.4 used to the mass of the polymer is used between 0.5:1 and 4:1 to form a sulphonated polymer;b) filtering of the excess sulphuric acid after the sulphonation operation and coking or pyrolysing the sulphonated polymer; andc) activating the coke obtained by the coking or pyrolysing operation.