Method for preparing calcium carbonate of different morphologies from ionic liquid

Method for preparing calcium carbonate of different morphologies from ionic liquid

  • CN 102,145,910 A
  • Filed: 02/24/2011
  • Published: 08/10/2011
  • Est. Priority Date: 02/24/2011
  • Status: Active Application
First Claim
Patent Images

1. one kind prepares the method for different-shape lime carbonate with ionic liquid, and this method processing step and condition are as follows:

  • 1) will be that ionic liquid solution 1~

    25 parts by volume of 0.1~

    5.0M joins in the water of 0~

    97 parts by volume with the concentration of deionized water preparation, stir;

    2) earlier be with concentration basic solution 0~

    50 parts by volume of 0.1~

    10.0M join stir in the above-mentioned solution after, under violent stirring, add calcium chloride water 1~

    50 parts by volume of 0.2~

    10.0M again;

    3) with above-mentioned solution under room temperature~

    50 ℃

    , place and contain CO 2Gas in, utilize wherein CO 2It carries out carburizing reagent the slow diffusion couple of gas, the 24~

    144h of ageing simultaneously;

    4) earlier that the throw out of gained is centrifugal, with deionized water wash clean after, place temperature-30~

    -58 ℃

    , freezing 10~

    24h can obtain the lime carbonate of exsiccant different-shape under vacuum tightness 8~

    30Pa.

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