Patent ID: 8840859
Filing Date: 2014-09-23
Classification: B01D,C01B

Abstract:
1. A method of producing silica from geothermal fluid containing the silica, consisting of the following steps: selecting a source of geothermal fluid containing the silica wherein said source of geothermal fluid containing the silica contains only geothermal fluid containing a low concentration of silica wherein said low concentration of silica is less than 275 ppm silica, treating said geothermal fluid by reverse osmosis treatment by treating said geothermal fluid containing a low concentration of silica wherein said low concentration of silica is less than 275 ppm silica by said reverse osmosis treatment thereby producing a concentrated fluid containing the silica, seasoning said concentrated fluid containing the silica thereby producing a slurry having precipitated colloids containing the silica, and separating silica in said slurry by separating silica of a size between 10-100 nm from said slurry thereby producing the silica.