VNIIPV offer for exporting as final product by contracts:

Chemisorbent (ion-exchange) fibres VION are new highly efficient materials for air cleaning from different toxic and aggressive gases (SO2, SO3, HF, HCl, Cl2, H2S, NH3), as well as aerosols (acid fogs, salt aerosols) which are the most largely encountered air contaminants.

The new methods of cleaning gas-and-air as well as water medium are intended for protecting the environment, for the individual and collective safety of workers in the enterprises of the metallurgical, chemical and other branches of industry as well as for reducing acid rains.

Production processes have been elaborated for obtaining fibrous chemisorbents VION and methods of manufacturing textile materials on their base (non-wovens and fabrics).

The technological process of producing fibres VION comprises:

• the synthesis of copolymers;
• fibre formation;
• chemical treatment.

The main advantages of this technological process are in the possibility of adjusting the composition of polymers in wide limits which ensures obtaining different kinds of fibres with high exchange capacity which does not change in service after reiterated sorption-desorption cycles.

• high purification degree (98);
• high sorption and regeneration rate (10-15 times higher than for grained materials);
• high exchange capacity, selectivity;
• hydrolytic resistance to acid, alkali, regenerating agent action (exchange capacity retention after 100 and more cycles of sorption - regeneration);
• low aero-dynamic and hydro-dynamic resistance when cleaning gas-air (100-200 Pa) and aqueous media.

Prospective fields of application

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