Development of a new heavy-metal-adsorbing material based on modified technical textile fiber waste

MA70871A1Pending Publication Date: 2026-09-30ECOLE SUPERIEURE DES IND DU TEXTILE & DE LHABILLEMENT ESITH +1
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Patent Information

Application Number
MA70871
Authority / Receiving Office
MA · MA
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-09-30
Patent Text Reader

Abstract

The present invention relates to a novel adsorbent material obtained from textile waste. The adsorbent material according to the invention is produced by functionalizing polyacrylonitrile (PANF) textile waste in a chloroacetic acid solution; this triggers a chelation reaction in which the chloroacetic acid acts as a chelating agent, reacting with the nitrile groups exposed on the surface of the PANF waste to convert them into iminodiacetic groups, thereby modifying the chemical composition of the waste surface in a desired manner based on specific reaction conditions (temperature, pH, and concentration). Once the reaction is complete, the resulting PANF waste is ready for use as an adsorbent for heavy metals such as Cr6+, Cu2+, Cd2+, and Pb2+.
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Citation Information

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