SYSTEM AND METHOD FOR THE REMOVAL OF NON-PROCESS ELEMENTS FROM ELECTROSTATIC PRECIPITATOR ASHES IN A KRAFT PULP PROCESS

The present application relates to a system and a method for the removal of non-process elements, such as K+ or Cl−, from electrostatic precipitator ashes in a kraft pulp process comprising the addition of a strong acid containing sulfur and CO2 in separate steps in the ash treatment step.

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Bibliographische Detailangaben
Hauptverfasser:	ARAUJO, Oliveira, VEIGA, Bruno, ALBAN, Bruno, CAMPO, Philippe
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS PULP COMPOSITIONS REGENERATION OF PULPING LIQUORS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	The present application relates to a system and a method for the removal of non-process elements, such as K+ or Cl−, from electrostatic precipitator ashes in a kraft pulp process comprising the addition of a strong acid containing sulfur and CO2 in separate steps in the ash treatment step.