C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 33/32 (2006.01) D21H 21/10 (2006.01) D21H 17/66 (2006.01)
Patent
CA 2393361
Aqueous composition, including a water-soluble metal silicate complex which includes at least one divalent metal. A process for preparing an aqueous composition including water-soluble metal silicate complex includes combining monovalent cation silicate and divalent metal ions in an aqueous environment to form the water-soluble metal silicate complex. A process of modifying cellulose slurry includes adding an aqueous composition having water-soluble metal silicate complex which includes divalent metal to cellulose slurry. A process for preparing cellulose slurry includes adding monovalent cation silicate to cellulose slurry comprising a sufficient amount of divalent metal ions to combine with the monovalent cation silicate to form water-soluble metal silicate complex. A process of making cellulose product includes: adding an aqueous composition having water-soluble metal silicate complex including divalent metal to cellulose slurry; and forming cellulose product from the cellulose slurry.
L'invention concerne une composition aqueuse contenant un complexe silicate métallique hydrosoluble comportant au moins un métal divalent. L'invention concerne également un procédé de préparation d'une telle composition aqueuse contenant un complexe silicate métallique hydrosoluble, consistant à combiner un silicate de cation monovalent et des ions métalliques divalents dans un milieu aqueux, en vue de la formation du complexe silicate métallique hydrosoluble. L'invention concerne en outre un procédé de modification d'une boue de cellulose, consistant à lui ajouter une composition aqueuse contenant un complexe silicate métallique hydrosoluble contenant un métal divalent. L'invention concerne aussi un procédé de préparation de la boue de cellulose, consistant à ajouter à ladite boue un silicate de cation monovalent, contenant une quantité suffisante d'ions métalliques divalents se liant au silicate de cation monovalent afin de former le complexe silicate métallique hydrosoluble. L'invention concerne enfin un procédé de fabrication d'un produit de cellulose consistant à ajouter à la boue de cellulose une composition aqueuse contenant un complexe silicate métallique hydrosoluble contenant un métal divalent, et à former le produit de cellulose à partir de cette boue.
Taggart Tom E.
Tong Jimei
Zhang Fishan
Hercules Incorporated
Moffat & Co.
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