Method for inhibiting silica precipitation and scaling in geothe

Details Method for inhibiting silica precipitation and scaling in geothe Method for inhibiting silica precipitation and scaling in geothe

1980-06-13

1982-05-04

Therkorn, Ernest G.

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

252 81, 252181, C02F 514

Patent

active

043281060

ABSTRACT:
A method for inhibiting silica scaling and precipitation in geothermal flow systems by on-line injection of low concentrations of cationic nitrogen-containing compounds, particularly polymeric imines, polymeric amines, and quaternary ammonium compounds.

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Betz Handbook of Industrial Water Conditioning 1976, 7th Edition, Betz Laboratories, Inc., pp. 194-195.
Iler, The Chemistry of Silica, John Wiley & Sons, 1979, pp. 297, 327, 384-385, 388, 571-572, and 702-704.
Rothbaum et al., "Effect of Silica Polymerization and pH on Geothermal Scaling", Geothermics, vol. 8, pp. 1-20, 1979.
Harrar et al., "Final Report on Test of Proprietary Chemical Additives as Antiscalants for Hypersaline Geothermal Brine", UCID-18521, Lawrence Livermore National Laboratory, Jan. 1980.
The Nalco Water Hankbook, McGraw-Hill, pp. 8-6 to 8-8.
Principles of Industrial Water Treatment, Drew Chemical Corporation, pp. 79-80.

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