US 12,421,137 B2
Hydrocarbon and sulfide removal in direct aqueous extraction
Florence Binet, Houston, TX (US); Arindam Bhattacharya, Houston, TX (US); Gary W. Sams, Houston, TX (US); Dominic Vincent Perroni, Sugar Land, TX (US); and Sharath Chandra Mahavadi, Cambridge, MA (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Jun. 2, 2023, as Appl. No. 18/328,048.
Claims priority of provisional application 63/386,356, filed on Dec. 7, 2022.
Prior Publication US 2024/0025767 A1, Jan. 25, 2024
Int. Cl. C02F 1/26 (2023.01); C02F 1/28 (2023.01); C02F 1/72 (2023.01); C22B 26/12 (2006.01); C02F 101/10 (2006.01); C02F 101/30 (2006.01); C02F 103/34 (2006.01)
CPC C02F 1/26 (2013.01) [C02F 1/28 (2013.01); C02F 1/72 (2013.01); C22B 26/12 (2013.01); C02F 2101/101 (2013.01); C02F 2101/30 (2013.01); C02F 2103/34 (2013.01); C02F 2209/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of recovering ions from an aqueous source, comprising:
reducing a concentration of sulfide species in a stream obtained from the aqueous source to form an extraction feed;
extracting target ions from the extraction feed, or from a stream derived from the extraction feed, using direct aqueous extraction in an extraction stage to yield an extract; and
reducing a concentration of dissolved silica, in the aqueous source, the stream obtained from the aqueous source, the extraction feed, or any combination thereof.