Process to disperse and/or grind and/or concentrate calcium carbonate in aqueous media using an aqueous solution containing zirconium compounds

US9617430B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9617430-B2
Application numberUS-201213559898-A
CountryUS
Kind codeB2
Filing dateJul 27, 2012
Priority dateJul 25, 2005
Publication dateApr 11, 2017
Grant dateApr 11, 2017

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  2. Abstract

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Abstract

Official abstract text for this publication.

The present invention is directed to a process for manufacturing a calcium carbonate product including the steps of (i) contacting calcium carbonate with of one or more zirconium compounds in an aqueous suspension and/or of an aqueous emulsion and/or of an aqueous solution to obtain a calcium carbonate-containing slurry, and (ii) dispersing the calcium carbonate-containing slurry to obtain a calcium carbonate product.

First claim

Opening claim text (preview).

The invention claimed is: 1. A process for manufacturing an aqueous dispersion or aqueous suspension of calcium carbonate comprising the steps of (i) contacting calcium carbonate with a dispersing aid agent in water to obtain a calcium carbonate-containing slurry, wherein the dispersing aid agent comprises a zirconium compound selected from the group consisting of ammonium zirconium carbonate, potassium zirconium carbonate, and mixtures thereof, and (ii) dispersing the calcium carb…

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What does patent US9617430B2 cover?
The present invention is directed to a process for manufacturing a calcium carbonate product including the steps of (i) contacting calcium carbonate with of one or more zirconium compounds in an aqueous suspension and/or of an aqueous emulsion and/or of an aqueous solution to obtain a calcium carbonate-containing slurry, and (ii) dispersing the calcium carbonate-containing slurry to obtain a ca…
Who is the assignee on this patent?
Buri Matthias, Schoelkopf Joachim, Kaessberger Michael, and 1 more
What technology area does this patent fall under?
Primary CPC classification C09C3/041. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Apr 11 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).