Patent · US Active

Silica extraction from geothermal water

US8840859B2 · kind B2 · utility

0Cited by

3References

3Claims

0Family size

Assignee

Lawrence Livermore National Security, LLC · US

Inventors

William L. Bourcier · Livermore, US
Carol J. Bruton · Livermore, US

Key dates

Filing date	Sep 3, 2008
Grant date	Sep 23, 2014
Priority date	—
Expiry date	Jul 23, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2311/08
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method of producing silica from geothermal fluid containing low concentration of the silica of less than 275 ppm includes the steps of treating the geothermal fluid containing the silica by reverse osmosis treatment thereby producing a concentrated fluid containing the silica, seasoning the concentrated fluid thereby producing a slurry having precipitated colloids containing the silica, and separating the silica from the slurry.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.