Collinear preparation method for strontium hydrate and strontium carbonate

Collinear preparation method for strontium hydrate and strontium carbonate

  • CN 101,704,540 A
  • Filed: 07/21/2009
  • Published: 05/12/2010
  • Est. Priority Date: 07/21/2009
  • Status: Active Application
First Claim
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1. the collinear preparation method of strontium hydroxide and Strontium carbonate powder, it comprises step:

  • A gets the SrS grog 75-95 ℃

    of following hot dipping, control solution S rS concentration is in 70~

    110g/L scope;

    B is airtight with above-mentioned SrS solution, stirs to be cooled to and carries out the suction strainer separation under 30-45 ℃

    , gets Sr (OH) 28H 2The O solid;

    C is with gained Sr (OH) 28H 2The dissolving of O solid water also adds H 2O 2, heated and boiled 15-30 minute, filter;

    D with gained filtrate is airtight be cooled to 35-45 ℃

    after centrifuge dehydration, the crystal that obtains is Sr (OH) 28H 2O;

    E passes through CO with last mother liquor among the step D 2Under 75-85 ℃

    , carry out carbonization and get SrCO 3

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