It is a kind of to prepare method of the different radial directions than nano-calcium carbonate particles by adjusting carbonization number

It is a kind of to prepare method of the different radial directions than nano-calcium carbonate particles by adjusting carbonization number

  • CN 103,950,964 B
  • Filed: 04/29/2014
  • Issued: 02/23/2018
  • Est. Priority Date: 04/29/2014
  • Status: Active Grant
First Claim
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1. a kind of prepare method of the different radial directions than nano-calcium carbonate particles by adjusting carbonization number, including:

  • (1) 80-85 DEG C of deionized water is added in CaO, stirring reaction 20-30min, room temperature ageing, sieving, adds deionizationWater, obtain Ca (OH)2Solution;

    (2) under water bath condition, chemical additives are added into above-mentioned Ca (OH)2In solution, stirring and dissolving, carbon dioxide is passed throughIt is carbonized, and is stirred, is stopped to the differential responses stage;

    Continue logical carbon dioxide stirring when being carbonized multiple, after ageing, extremelyReaction solution pH is 7, washing centrifugation, dries, produces different radial directions and compare nano-calcium carbonate particles;

    Bath temperature is 18.0-25.0℃



    The number that is wherein carbonized is 1 time, 2 times or 3 times;

    It is aged according to carbonization number, Aging Temperature is 65-70 DEG C, and ageing is totalTime is 10-16h.

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