CPC B01J 3/062 (2013.01) [B24D 18/00 (2013.01); B24D 18/0009 (2013.01); B24D 18/0027 (2013.01); C01B 32/28 (2017.08); E21B 10/56 (2013.01); E21B 10/567 (2013.01); B01J 2203/062 (2013.01)] | 20 Claims |
1. A polycrystalline diamond body produced by a process comprising:
providing a polycrystalline diamond body including bonded diamond grains defining interstitial regions comprising at least one interstitial constituent disposed in the interstitial regions;
at least partially leaching the polycrystalline diamond body with a leaching agent comprising a mixture having:
a ratio of weight % hydrofluoric acid to weight % nitric acid of about 1.0 to about 2.4; and
water in a concentration of about 50 weight % to about 85 weight %;
producing an at least partially leached polycrystalline diamond body by removing at least a portion of the at least one interstitial constituent from the polycrystalline diamond body; and
producing the at least partially leached polycrystalline diamond body such that a portion of the leaching agent and/or a byproduct of the leaching agent remains within the at least partially leached polycrystalline diamond body.
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