Methods of cleaning and/or neutralizing an at least partially leached polycrystalline diamond body and resulting polycrystalline diamond compacts

A polycrystalline diamond compact, comprising:

• a polycrystalline diamond body comprising:
• a first leached volume extending inwardly from a working surface of polycrystalline diamond body;
• and
• a second volume configured to be located proximate to a substrate that includes at least one interstitial material therein;
• wherein the first leached volume is substantially free of a residual amount of acid;
• wherein the first leached volume has been subjected to a residual acid removal and/or neutralization process after a leaching of the first leached volume;
• and
• wherein the polycrystalline diamond body exhibits a concentration of anions of 1 part per million to 3 parts per million.

A polycrystalline diamond compact produced by a process comprising:

• providing a polycrystalline diamond body including a plurality of diamond grains defining a plurality of interstitial regions having at least one interstitial material occupying at least a portion of the plurality of interstitial regions;
• at least partially leaching at least some of the at least one interstitial material from the polycrystalline diamond body to form an at least partially leached polycrystalline diamond body including a residual amount of acid;
• and
• removing and/or neutralizing at least a portion of the residual amount of acid to remove at least some of the residual amount of acid in the at least partially leached polycrystalline diamond body, wherein the polycrystalline diamond body exhibits a concentration of anions greater than zero and less than 3 parts per million.