SYSTEMS AND METHODS FOR GENERATING POLYSULFIDES

SYSTEMS AND METHODS FOR GENERATING POLYSULFIDES

A system and method for generating polysulfide includes at least one vessel (21) for containing the pulping liquor, and at least one oxidation promoter element (1) including an oxidation promoter (11) adhered by a coating material (10) to a substrate (9). The oxidation promoter element (1) may be af...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DUARTE, DANIEL, SUNDARAM, MEENAKSHI, V., S, EPINEY, MICHEL
Format: Patent
Sprache:eng ; fre
Schlagworte:
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PAPER-MAKING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
REGENERATION OF PULPING LIQUORS
TEXTILES
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:A system and method for generating polysulfide includes at least one vessel (21) for containing the pulping liquor, and at least one oxidation promoter element (1) including an oxidation promoter (11) adhered by a coating material (10) to a substrate (9). The oxidation promoter element (1) may be affixed within the vessel (21) or, alternatively, movable between two or more vessels (21a, 21b) to facilitate polysulfide generation and/or recovery of the oxidation promoter in at least two vessels. La présente invention concerne un système et un procédé d'obtention de polysulfure. On utilise à cet effet au moins un bac contenant la lessive de cuisson, et au moins un élément promoteur d'oxydation comportant un promoteur d'oxydation adhérant à un substrat au moyen d'un matériau de revêtement. Le promoteur d'oxydation peut être maintenu dans le bac ou, selon un autre mode de réalisation, tenu mobile entre plusieurs bacs pour favoriser la génération du polysulfure et/ou la génération de polysulfure et/ou la récupération du promoteur d'oxydation dans au moins deux bacs.