Patent ID: 9234141
Filing Date: 2016-01-12
CPC Classification: C10G

Claim Text:
1. A process to recover oil from Hg-containing solids, the process comprising: providing Hg-containing solids containing abradants, the Hg-containing solids having a first amount of mercury; mixing the Hg-containing solids containing abradants with a solvent and a sulfidic compound forming a mixture, wherein the sulfidic compound is present in a molar ratio of sulfidic compound to mercury from 5:1 to 5,000:1, and the sulfidic compound dissolves in water and yields S separating the mixture to recover a first phase containing solvent and a second phase containing treated abradants having a second amount of mercury which is less than the first amount of mercury; and recovering the treated abradants for use as abrasive blasting media in abrasive-blasting equipment.