Tuesday, May 16, 2017

USA: Patent Awarded for Process Removing Silica from Geothermal Brine

Treated geothermal brine compositions with reduced concentrations of iron and silica (United States Patent and Trademark Office)

A patent filed in February 2014 has been awarded to its inventors Stephen Harrison and John Burba, III who were then employed by Simbol Inc. of Pleasanton, California, USA.

This invention relates to treated geothermal brine compositions containing reduced concentrations of iron and silica compared to the untreated brines. 

Exemplary compositions of the treated brine contain concentration of silica ranging from 0 to 80 mg/kg and concentration of iron ranging from 0 to 300 mg/kg. Exemplary compositions of the reduced silica and iron brines also contain reduced concentrations of elements like arsenic, barium, lead, and lithium.