Tungsten desorption method of weakly basic anion exchange resin

The invention discloses a tungsten desorption method of weakly basic anion exchange resin, which comprises the following steps: S1, selecting alkali liquor according to the tungsten adsorption capacity of weakly basic anion exchange resin, and calculating the theoretical alkali consumption of tungst...

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Bibliographische Detailangaben
Hauptverfasser:	HUANG WENPU, YANG WENBO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F INORGANIC CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention discloses a tungsten desorption method of weakly basic anion exchange resin, which comprises the following steps: S1, selecting alkali liquor according to the tungsten adsorption capacity of weakly basic anion exchange resin, and calculating the theoretical alkali consumption of tungsten desorption; S2, adding weakly basic anion exchange resin into a tungsten desorption container, and adding the alkali liquor into the tungsten desorption container according to the theoretical alkali consumption; S3, after a first predetermined amount of alkali liquor is added, discharging reactedfeed liquid; S4, continuing to add the alkali liquor, and after a second predetermined amount of alkali liquor is added, discharging the reacted feed liquid and recovering sodium tungstate in the feed liquid; S5, continuing to add the alkali liquor, and after a third predetermined amount of alkali liquor is added, discharging the reacted feed liquid and recovering the alkali liquor in the feed liquid; and S6, continuing