Method for recovering waste silica sol for reutilization

Method for recovering waste silica sol for reutilization

  • CN 103,910,516 A
  • Filed: 12/31/2012
  • Published: 07/09/2014
  • Est. Priority Date: 12/31/2012
  • Status: Active Application
First Claim
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1. a method for discarded silicon sol recycling, comprises the steps:

  • (1) in discarded silicon sol, add acid or salt, make discarded silicon sol form hydrogel;

    (2) in the product of step 1 gained, add anti-shrinkage strain reagent, and be dried, make hydrogel become aerogel;

    (3) in the product of step 2 gained, add additive, strengthen toughness reinforcing processing.

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