Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Patent
1993-03-24
1997-01-21
Group, Karl
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
423335, 424 49, C01B 3318
Patent
active
055957170
ABSTRACT:
A more efficient utilization of geothermal energy by allowing flashing of the produced water to a lower temperature. This is accomplished by causing additional quantities of silica to precipitate out of the geothermal water as particles rather than as scale on process equipment. These particles are tertiary aggregate amorphous silica of Type I, II or III, which have high surface areas, good oil absorption and high reflectivity. They are useful as additives and opacifiers for paper, paints, rubbers, and plastics; as thixotropic thickening agents; and as absorbents. The improved energy recovery is accomplished by utilizing the addition (including recycle) of previously produced particles of amorphous tertiary aggregate silica of a selected Type I, II or III, as a heterogeneous precipitation agent, alone or in combination with other more conventional precipitation agents.
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Harper Ross T.
Johnston James H.
Wiseman Nicholas
Geochemistry Research Limited
Group Karl
Tasman Pulp & Paper Co. Limited
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