Use of carbon dioxide generated in manufacturing synthetic...

C - Chemistry – Metallurgy – 10 – J

Patent

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C10J 3/50 (2006.01) C01F 11/18 (2006.01) C09C 1/02 (2006.01) C10G 2/00 (2006.01) C10J 3/52 (2006.01) C10J 3/84 (2006.01)

Patent

CA 2696867

The invention relates to the use of a carbon dioxide stream generated in oxygen gasification of organic matter for carbonating calcium from a liquid containing calcium ions. The invention also relates to a manufacturing process of paper or board, wherein organic matter is gasified with oxygen in order to carbonate the calcium, the produced carbon dioxide stream is reacted with a liquid containing calcium ions and the carbonated calcium is added to the pulp during the papermaking process as a filler or onto finished paper as a coating.

Cette invention a trait à l'utilisation d'un courant de dioxyde de carbone généré lors du processus de gazéification à l'oxygène de matière organique pour obtenir du carbonate de calcium à partir d'un liquide contenant des ions calcium. Cette invention se rapporte également à un procédé de fabrication de papier ou de carton, dans lequel de la matière organique est gazéifiée avec de l'oxygène pour obtenir du carbonate de calcium, le courant de dioxyde de carbone produit est mis à réagir avec un liquide contenant des ions calcium et le carbonate de calcium obtenu est ajouté à la pâte lors du processus de fabrication du papier en tant que charge, ou sur le papier fini en tant que revêtement.

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