REMOVAL OF SODIUM SALT AND POTASSIUM SALT FROM CAUGHT ASH OF SODA-RECOVERING BOILER

PURPOSE: To provide the method for removing from a caught ash the sodium and potassium salts which are concentrated and accumulated in a pulp-digesting chemical as impurities. CONSTITUTION: The method for removing sodium and potassium salts from the caught ash of the soda-recovering boiler comprises...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	YAGI MICHIMASA, TATEISHI MASAKAZU, MAEDA TAKAYUKI, TOKUNAGA KIKUO, ARAKAWA YOSHIHISA
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM DISPOSAL OF SOLID WASTE INORGANIC CHEMISTRY METALLURGY PAPER-MAKING PERFORMING OPERATIONS PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS RECLAMATION OF CONTAMINED SOIL SOIL REGENERATION OF PULPING LIQUORS TEXTILES TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE: To provide the method for removing from a caught ash the sodium and potassium salts which are concentrated and accumulated in a pulp-digesting chemical as impurities. CONSTITUTION: The method for removing sodium and potassium salts from the caught ash of the soda-recovering boiler comprises slurrying the ash caught from the combustion exhaust gas of the soda-recovering boiler in water, controlling the pH of the slurry to =20 deg.C, holding the mixture for a definite time to dissolve the sodium and potassium salts contained in the caught ash in water, cooling the slurry at