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Application filed by Specialty Minerals IncfiledCriticalSpecialty Minerals Inc
Priority to CO04126455ApriorityCriticalpatent/CO5631425A2/en
Publication of CO5631425A2publicationCriticalpatent/CO5631425A2/en
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals
(AREA)
Abstract
1.- Un proceso para producir carbonato de calcio precipitado, que comprende los pasos de:proporcionar hidróxido de calcio; y carbonatar el hidróxido de calcio con gas de bióxido de carbono y triturar por un tiempo suficiente para producir un carbonato de calcio que tiene al menos una conversión de aproximadamente 90 por ciento en peso a carbonato de calcio y que tiene una concentración en sólidos de al menos aproximadamente 90 por ciento en peso.1. A process to produce precipitated calcium carbonate, which comprises the steps of: providing calcium hydroxide; and carbonate the calcium hydroxide with carbon dioxide gas and grind for a sufficient time to produce a calcium carbonate that has at least a conversion of about 90 percent by weight to calcium carbonate and that has a solids concentration of at minus about 90 percent by weight.
CO04126455A2004-12-172004-12-17
PROCESS FOR THE PRODUCTION OF PRECIPITATED CALCIUM CARBONATES AND PRODUCT PRODUCED BY THIS
CO5631425A2
(en)
Use of surface-treated natural calcium carbonate as filler in paper products, product of the reaction of natural calcium carbonate with acid and carbon dioxide; tissue paper manufacturing process; and tissue paper.
PROCEDURE FOR THE PRODUCTION OF PRECIPITATED CALCIUM CARBONATE OF LAMINAR STRUCTURE, PRODUCT OBTAINED BY MEANS OF THIS PROCEDURE, AND PAPER CONTAINING THE SAME