Corrosion control in a closed recirculating cooling water system
- 1. Applied Chemistry Division, Bhabha Atomic Research Centre Bombay (India)
- 2. Bhabha Atomic Research Centre, Bombay (India). Metallurgy Div.
- 3. Madras Atomic Power Project, Kalpakkam (India)
Description
Detailed studies were carried out on the control of corrosion of carbon steel, aluminium brass and cupronickel in a closed demineralized (DM) water (pH 8.5-9.5) system using nitrite-borate-benzotriazole and hydrazine. In the case of nitrite-borate-benzotriazole best results were obtained when a combination of 1200 ppm NaNO2, 500 ppm borax and 4 ppm benzotriazole was used. In the case hydrazine treatment, at concentration levels of 5-15 ppm, the corrosion rates of all the three materials were considerably lower than the permissible limits. Treatment with hydrazine is currently being tried in place of chromate for corrosion control in the closed recirculating process water cooling system in Madras Atomic Power Station. (author). 4 refs., 2 tabs
Additional details
Publishing Information
- Publisher
- Bhabha Atomic Research Centre.
- Imprint Place
- Bombay (India)
- Imprint Title
- Proceedings of the symposium on current trends in water chemistry of nuclear and thermal power plants and other related units
- Imprint Pagination
- 330 p.
- Journal Page Range
- p. 189-190.
Conference
- Title
- current trends in water chemistry of nuclear and thermal power plants and other related units.
- Acronym
- CURTWAC-95
- Dates
- 13-16 Feb 1995.
- Place
- Bombay (India).
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 26071783
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ALUMINIUM; BORAX; CARBON STEELS; COPPER ALLOYS; CORROSION; CORROSION INHIBITORS; CORROSION PROTECTION; DEMINERALIZATION; FEEDWATER; HYDRAZINE; KALPAKKAM-1 REACTOR; KALPAKKAM-2 REACTOR; NICKEL ALLOYS; NITRITES; PH VALUE; WATER CHEMISTRY
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ALLOYS; BORATES; BORON COMPOUNDS; CARBON ADDITIONS; CHEMICAL REACTIONS; CHEMISTRY; ELEMENTS; HEAVY WATER COOLED REACTORS; HEAVY WATER MODERATED REACTORS; HYDROGEN COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; METALS; NATURAL URANIUM REACTORS; NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PHWR TYPE REACTORS; POWER REACTORS; PRESSURE TUBE REACTORS; REACTORS; SEPARATION PROCESSES; SODIUM COMPOUNDS; STEELS; TRANSITION ELEMENT ALLOYS; WATER