METHOD AND DEVICE FOR CHARGING FIBRES CONTAINED IN A FIBROUSSUSPENSION WITH CALCIUM CARBONATE

The invention relates to a method for charging fibres contained in a fibrous suspension with calcium carbonate, by means of a chemical precipitation reaction, whereby calcium oxide and/or calcium hydroxide is added to the fibrous suspension and at least partly liquid carbon dioxide is injected int o...

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Bibliographische Detailangaben
Hauptverfasser:	HEISE, OLIVER, DOELLE, KLAUS
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS IMPREGNATING OR COATING OF PAPER INORGANIC CHEMISTRY METALLURGY 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 invention relates to a method for charging fibres contained in a fibrous suspension with calcium carbonate, by means of a chemical precipitation reaction, whereby calcium oxide and/or calcium hydroxide is added to the fibrous suspension and at least partly liquid carbon dioxide is injected int o the reactor to initiate the precipitation reaction, thus providing for a reaction of the starting materials calcium oxide or calcium hydroxide to giv e the reaction products calcium carbonate and water. The carbon dioxide can subsequently be added in liquid form or partly in liquid form and partly in gaseous form. A corresponding device for the charging of fibres is also described.