Production of a Novel Fibrous Polyampholyte for Air Purification

The technology for producing a universal fibrous polyampholyte by single-step amination of nitron fiber with ethylenediamine or diethylenetriamine in the presence of alkali-metal carbonates was developed. The static exchange capacity of the polyampholyte basic groups was ~2.5 mg-eq/g; acidic groups,...

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Bibliographic Details
Published in:Fibre chemistry 2014-05, Vol.46 (1), p.16-20
Main Authors: Grachek, V. I., Shunkevich, A. A., Akulich, Z. I., Radkevich, S. E., Pansevich, V. V.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Ethylenediamines
Organic Chemistry
Polymer Sciences
Online Access:Get full text
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Summary:The technology for producing a universal fibrous polyampholyte by single-step amination of nitron fiber with ethylenediamine or diethylenetriamine in the presence of alkali-metal carbonates was developed. The static exchange capacity of the polyampholyte basic groups was ~2.5 mg-eq/g; acidic groups, ~2.0 mg-eq/g. A pilot plant for producing ion exchanger with a throughput up to 4 ton/yr was put into operation. The fibrous polyampholyte in the carbonate form was used to purify air of acidic toxic gases. It was suitable after impregnation with mineral acids for ultrapurification from basic toxic gases over a broad range of relative humidity.
ISSN:0015-0541
1573-8493
DOI:10.1007/s10692-014-9553-1