Mechanochemical Synthesis of Nitrogen-containing Derivatives of Flax Boon

The influence exerted by the conditions of the mechanochemical synthesis [time (100–100 min), air pressure (1–9 atm), temperature (30–90°C), amount of ammonia (0.5–3.0 g g−1 raw material)] on the content of nitrogen and functional groups in the products of oxidative ammonolysis of flax boon was studied. The resulting products were tested as nitrogen-containing ion exchangers in sorption of heavy metals.