Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...
Patent
1984-01-19
1985-10-15
Hruskoci, Peter
Liquid purification or separation
Processes
Preventing, decreasing, or delaying precipitation,...
210698, 210699, 210700, 210701, 252181, 422 14, C02F 508
Patent
active
045472947
ABSTRACT:
Formation of alkaline scale on cooling tower and associated heat transfer surfaces contacted by circulating water is reduced or substantially eliminated while minimizing equipment corrosion by introducing an effective amount of carbon dioxide and a threshold effect chemical scale control additive to the circulating water.
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patent: 4444675 (1984-04-01), Goeldner
patent: 4472283 (1984-09-01), Brooks
"Cardox.RTM. Carbon Dioxide for pH Control", brochure-undated.
Betz Handbook of Industrial Water Conditioning, Chapter 14-"Recarbonation" (1945), Chapter 13-"Recarbonation" (1953).
Ellis et al., "Alkaline Scale Abatement by Carbon Dioxide Injection", Environmental Science & Technology, vol. 5, No. 4 at 350 (1971).
"The Effect of Plant Operating Conditions on Recirculating Brine pH, and the Effect of Brine pH on the Activity of Scale Control Additives"-Finan et al., Ciba-Geigy (UK) Ltd. (1978)-Circular DB 6.7.
Kunz et al., "Cooling Water Calculations", Chemical Engineering, Aug. 1, 1977, pp. 61-71.
Hruskoci Peter
Mechanical Equipment Company, Inc.
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