Process for inhibiting corrosion in a pressurized water nuclear reactor
First Claim
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1. The process for inhibiting corrosion caused by the presence of coolant water passing through the primary circuit of a pressurized water nuclear reactor system comprising:
- adding a sufficient amount of zinc to coolant water in a primary circuit of a pressurized water reactor for increasing the concentration of zinc ions in said reactor coolant water from about 15 up to 38 parts per billion at a rate of at least about 3 parts per billion zinc ions per day.
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Abstract
A process for inhibiting corrosion caused by the presence of coolant water passing through a pressurized water nuclear reactor by the addition of an effective amount of an aqueous solution of zinc borate to the reactor coolant water. The transport of corrosion products and radioactive cobalt ions through the reactor primary circuit, as well as levels of radioactivity within the primary circuit, are reduced.
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Citations
17 Claims
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1. The process for inhibiting corrosion caused by the presence of coolant water passing through the primary circuit of a pressurized water nuclear reactor system comprising:
adding a sufficient amount of zinc to coolant water in a primary circuit of a pressurized water reactor for increasing the concentration of zinc ions in said reactor coolant water from about 15 up to 38 parts per billion at a rate of at least about 3 parts per billion zinc ions per day. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A process for inhibiting corrosion caused by coolant water circulating in a hydraulic circuit of a nuclear reactor, comprising the steps of:
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circulating coolant water in a hydraulic circuit of a nuclear reactor at a temperature of about 300°
C.;adding zinc to the coolant water in an amount sufficient for increasing the concentration of zinc ions in the coolant water from about 15 up to about 38 parts per billion at a rate of at least about 3 parts per billion zinc ions per day. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification