Process for loading fibers with calcium carbonate

Details Process for loading fibers with calcium carbonate Process for loading fibers with calcium carbonate

D - Textiles, Paper

21

H

D21H 17/64 (2006.01) D21C 9/00 (2006.01) D21H 11/20 (2006.01) D21H 17/70 (2006.01) D21H 23/04 (2006.01) D21H 17/67 (2006.01)

Patent

CA 2352885

During the chemical process of loading with calcium carbonate fibers contained in a pulp suspension, a medium containing calcium oxide or calcium hydroxide is added to the pulp suspension. This treated pulp suspension is charged in at least one reactor with pure carbon dioxide (or a medium containing carbon dioxide), which, during the progression of the reaction, converts at least a significant portion of the starting materials (calcium oxide and/or calcium hydroxide anal carbon, dioxide) into the reaction products, calcium carbonate and water. This reaction is accomplished by properly controlling the pulp suspension's pH.

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