Preparation of ion exchangers from bagasse by crosslinking with epichlorohydrin-NH4OH or epichlorohydrin-imidazole

✍ Scribed by Ivan Šimkovic; Joseph A. Laszlo

• Book ID: 101253651
• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 145 KB
• Volume: 64
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19970627)64:13<2561::aid-app9>3.0.co;2-b

✦ Synopsis

Sugar cane bagasse was crosslinked with epichlorohydrin in the presence of NH 4 OH or imidazole. The obtained water-insoluble products were characterized in terms of yield, anion-exchange capacity, packed volume, and dye-binding properties. Yields were highest using a 3 : 1 epichlorohydrin to NH 4 OH molar ratio, producing weak anion exchangers. The weak anion exchangers had low dye-binding capacities compared to their total anion-exchange capacities. A 2 : 1 epichlorohydrin-to-imidazole molar ratio proved best for making strong anion exchangers from bagasse. The strong anion exchangers had dye-binding capacities comparable to their anion-exchange capacities, indicating that they might be useful for removing anionic dyes from wastewater.