Process for improving the purity of quaternary ammonium hydroxides by electrolysis

A process for improving the purity of a composition comprising a quaternary ammonium hydroxide by electrolysis using cation selective membranes. The process is particularly suitable for improving the purity of an aqueous solution comprising tetramethylammonium hydroxide which has been used in the pr...

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Hauptverfasser: GIATTI ANNA, RAINS ROGER KERANAN, BOERMAN GERRIT JAN, KORPEL FRED
Format: Patent
Sprache:eng ; slo
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Zusammenfassung:A process for improving the purity of a composition comprising a quaternary ammonium hydroxide by electrolysis using cation selective membranes. The process is particularly suitable for improving the purity of an aqueous solution comprising tetramethylammonium hydroxide which has been used in the production of 4-aminodiphenylamine for a number of reaction cycles. Spôsob zlepšenia čistoty zmesí obsahujúcich kvartérny hydroxid amónny prostredníctvom elektrolýzy použitím katiónoselektívnych membrán. Spôsob je obzvlášť vhodný na zlepšenie čistoty vodného roztoku obsahujúceho hydroxid tetrametylamónny, ktorý sa použil pri výrobe 4-aminodifenylamínu vo viacerých reakčných cykloch.