PROCEDIMENTO PER LA FABBRICAZIONE DI FIBRE SCAMBIATRICI DI ANIONI

Anion-exchange fibres are prepd. by (a) forming fibres of polyacrylonitrile, (2) treating the fibres with (i) an aq. soln. of hydrazine hydrate and then with NaOH soln., to convert 5-20% of the CN gps. to COOH gps., or (ii) with an aq. soln. of hydroxylamine to convert 3-10% of the CN gps. to hydrox...

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Hauptverfasser:	NADEZHDA FEDOROVNA KALYANOVA, MIKHAIL PETROVICH ZVEREV, TATYANA FEDOROVNA KOSTINA, ARKADY NAUMOVICH BARASH, KONSTANTIN KONSTANTINOVICH EGOROV
Format:	Patent
Sprache:	ita
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