Partially neutralised alkali metal mono-chloroacetate soln. prodn. - for carboxymethyl cellulose prodn

Prodn. of aq. alkali metal monochloroacetate solns. by partial neutralisation of monochloroactic acid (MCA) with alkali metal hydroxide (MOH) is carried out by introducing an aq. MCA soln. and an aq. MOH soln. into a system in which a conc. aq. soln. of the partially neutralised salt is circulated,...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SCHMINKE,WOLFGANG,.DR, ARNDT,HORST, HILBIG,JOSEF,.DR, HOEPFNER,PAUL, DANIEL,RICHARD, STOELTING,KLAUS
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES THEIR PREPARATION OR CHEMICAL WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Prodn. of aq. alkali metal monochloroacetate solns. by partial neutralisation of monochloroactic acid (MCA) with alkali metal hydroxide (MOH) is carried out by introducing an aq. MCA soln. and an aq. MOH soln. into a system in which a conc. aq. soln. of the partially neutralised salt is circulated, while the heat of neutralisation is removed from the system. The solns. are esp. useful for the prodn. of carboxymethyl cellulose from alkali celluloses; they avoid the local overheating associated with the use of MCA and the solubility associated with the use of the solid salt. The process allows conc. solns. to be obtd. with a min. risk of side reactions or salt crystallisation.