Global Patent Index - EP 0049656 B1

EP 0049656 B1 19850529 - PURIFICATION DEVICE FOR REMOVING HEAVY METALS FROM CONTAMINATED AQUEOUS EFFLUENTS

Title (en)

PURIFICATION DEVICE FOR REMOVING HEAVY METALS FROM CONTAMINATED AQUEOUS EFFLUENTS

Publication

EP 0049656 B1 19850529 (FR)

Application

EP 81401493 A 19810925

Priority

FR 8021407 A 19801007

Abstract (en)

[origin: EP0049656A1] 1. Purification device for removing heavy metal contaminants from aqueous effluents, characterized in that it comprises a crosslinked hydrophilic copolymer support derived from 85 to 95% by weight of a hydrophilic monounsaturated monomer and 5 to 15% by weight of a polyunsaturated monomer, and an agent capable of complexing heavy metals incorporated in said support in an amount from 2 to 20% by weight, based on total weight of agent and support, said agent being selected from 2-thiobenzimidazole, chloro-, nitro- or dimethyl derivatives of 2-thiobenzimidazole, 2-thio-3-vinylbenzimidazole, thioureidobenzimidazole, 2-aminobenzimidazole and guanidines.

IPC 1-7

G21F 9/12

IPC 8 full level

G21F 9/12 (2006.01)

CPC (source: EP)

G21F 9/12 (2013.01)

Designated contracting state (EPC)

BE DE GB IT NL

DOCDB simple family (publication)

EP 0049656 A1 19820414; EP 0049656 B1 19850529; DE 3170732 D1 19850704; FR 2491670 A1 19820409; FR 2491670 B1 19820910

DOCDB simple family (application)

EP 81401493 A 19810925; DE 3170732 T 19810925; FR 8021407 A 19801007