FIELD: chemistry.
SUBSTANCE: invention relates to sorption technologies. Disclosed is a method of producing sorbent of dichromate ions, consisting of inert support and active sorbent polymer layer of polyaniline. Sorbent layer is produced by oxidative polymerisation of aniline on a support in presence of hydrochloric acid. Support used is rubber crumbs with particle size of 0.125-1.0 mm. Oxidative polymerisation is carried out with molar ratio of aniline to ammonium persulphate and to hydrochloric acid equal to 1:1.25:(0.12-0.47). Weight ratio of aniline to rubber crumbs is (3.32-0.23):1.
EFFECT: simplified process with increase of its sorption capacity with respect to dichromate ions.
1 cl, 2 tbl, 6 ex
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