METHOD FOR PREPARATION OF FERROCYANIDE SORBATES

FIELD: technological processes; chemistry. ^ SUBSTANCE: for sorbate preparation carbon carrier is preliminarily treated by solution of sodium hydroxide, then solution of hydrochloric or nitric acid, flushed with distilled water after every treatment and dried. Prepared carrier is at first treated by...

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Hauptverfasser:	SERGIENKO VALENTIN IVANOVICH, AVRAMENKO VALENTIN ALEKSANDROVICH, ZHELEZNOV VENIAMIN VIKTOROVICH, MAJOROV VITALIJ JUR'EVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: technological processes; chemistry. ^ SUBSTANCE: for sorbate preparation carbon carrier is preliminarily treated by solution of sodium hydroxide, then solution of hydrochloric or nitric acid, flushed with distilled water after every treatment and dried. Prepared carrier is at first treated by solution of organic acid salt of transition metal, afterwards tempered in inertial atmosphere in range of temperatures of 190-600C, then tempered activated carbon material is treated by acid solution of potassium ferrocyanide, then washed by water. Prepared ferrocyanide sorbate is additionally exposed to thermal treatment at the temperature of 120-150C. ^ EFFECT: higher concentration of microcrystalline phase that does not depend on number of ion-exchange groups of carbon carrier and on carrier type, and higher sorption properties. ^ 6 cl, 5 dwg, 17 ex