Production method and production device of sodium orthosilicate

Production method and production device of sodium orthosilicate

  • CN 105,236,434 A
  • Filed: 09/08/2015
  • Published: 01/13/2016
  • Est. Priority Date: 09/08/2015
  • Status: Active Application
First Claim
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1. a sodium orthosilicate production method, is characterized in that, described production method comprises the following steps:

  • (1) solid sodium hydroxide and silicon powder are added in electric smelter according to the ratio of weight ratio 2.5-3;

    1, heating curve is warming up to 200 DEG C according to 8-10 DEG C/min, then 320-350 DEG C is warming up to according to 4-6 DEG C/min, described solid sodium hydroxide melting is made after heating, continue again to be warming up to 400-450 DEG C according to 4-6 DEG C/min, stop heating, until described silicon powder reacts completely, obtain sodium orthosilicate crude product;

    (2) described sodium orthosilicate crude product is cooled to less than 60 DEG C, makes described sodium orthosilicate crude product completion of cure, obtain sodium orthosilicate product.

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