Leaching ultrahard materials by enhanced demetalyzation

Leaching ultrahard materials by enhanced demetalyzation

  • CN 105,658,576 A
  • Filed: 12/09/2013
  • Published: 06/08/2016
  • Est. Priority Date: 12/09/2013
  • Status: Active Application
First Claim
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1. method metal target removed from superhard material, described method includes:

  • Be enough to from described superhard material at least some of remove at least 70% described metal target time in and condition under, described superhard material is exposed to thiourea solution, described thiourea solution comprises at least one thiourea and at least one is sour.

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