A method and a system for precipitation of calcium carbonate and a product comprising calcium carbonate

A method and a system for precipitation of calcium carbonate and a product comprising calcium carbonate

  • CN 103,154,369 A
  • Filed: 08/16/2011
  • Published: 06/12/2013
  • Est. Priority Date: 08/20/2010
  • Status: Active Application
First Claim
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1. the method for winnofil comprises:

  • -calcium hydroxide is incorporated in the fibrous suspension that comprises containing cellulose fiber,-at the waterborne suspension that makes calcium hydroxide and fiber with before carbon dioxide contacts, calcium hydroxide was adhered at least one minute on the surface of fiber, preferably at least 1.5 minutes, and-waterborne suspension of calcium hydroxide and fiber is contacted with winnofil with carbon dioxide.

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