US 11,738,315 B2
Polycrystalline diamond tables and compacts and related methods
Julie Ann Kidd, North Ogden, UT (US); Heather Marie Schaefer, North Ogden, UT (US); Chengkun Xu, Orem, UT (US); Jason K. Wiggins, Draper, UT (US); Matthew Brown, Provo, UT (US); and Cody Frisby, Payson, UT (US)
Assigned to US Synthetic Corporation, Orem, UT (US)
Filed by US Synthetic Corporation, Orem, UT (US)
Filed on Sep. 20, 2021, as Appl. No. 17/479,553.
Application 17/479,553 is a continuation of application No. 16/238,454, filed on Jan. 2, 2019, granted, now 11,135,560.
Application 16/238,454 is a continuation of application No. 15/065,246, filed on Mar. 9, 2016, granted, now 10,173,899, issued on Jan. 8, 2019.
Claims priority of provisional application 62/135,438, filed on Mar. 19, 2015.
Prior Publication US 2022/0001348 A1, Jan. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01J 3/06 (2006.01); E21B 10/56 (2006.01); E21B 10/567 (2006.01); B24D 18/00 (2006.01); C01B 32/28 (2017.01)
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.