Circulating water treating agent and preparation method thereof
A treatment agent and circulating water technology, applied in water/sludge/sewage treatment, special treatment targets, chemical instruments and methods, etc., can solve the problem of high total phosphorus content, non-compliance with environmental protection policy requirements, and reduce phosphorus content in discharged water, etc. problems, to achieve the effect of excellent scale and corrosion inhibition performance, good fouling deposition rate, and industrial water saving
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[0018] Example 1
[0019] According to parts by weight, weigh out 3 parts of 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA), and 9 parts of 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA), 25 parts of quaternary copolymer, 10 parts of terpolymer, 2 parts of benzotriazole, 1 part of tolyltriazole, 6 parts of zinc chloride, 8 parts of Polyepoxysuccinic acid, 5 parts of sodium salicylate, 5 parts of sodium tungstate, 1 part of ferric chloride, 70 parts of deionized water, make 1000 kg.
[0020] The above-mentioned raw materials are mixed in a reaction kettle according to the proportion for compounding, and the ambient temperature is 23°C.
[0021] A circulating cooling water system in a chemical plant has a volume of 1000m 3 , The circulation volume is 2500m 3 , The heat exchanger material is TP304, and the pipe is carbon steel pipe. Concentration rate is 5 times, in which the corrosion rate of carbon steel coupon is less than 0.0025mm / a, and the adhesion rate is 4.851mg / cm 2 ·...
Example Embodiment
[0023] Example 2
[0024] According to parts by weight, weigh out 2.5 parts of 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA), and 7.5 parts of 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA), 25 parts of quaternary copolymer, 10 parts of terpolymer, 3 parts of benzotriazole, 1.5 parts of tolyltriazole, 5 parts of zinc sulfate, 8 parts of poly Epoxysuccinic acid, 5 parts of sodium salicylate, 8 parts of sodium tungstate, 3 parts of ferric chloride, 150 parts of deionized water, make 1000 kg.
[0025] The above-mentioned raw materials are mixed in the reaction kettle according to the proportion for compounding, and the ambient temperature is 25°C.
[0026] The installed capacity of a power plant is 300MW×2 units, and the capacity of the single-unit circulating cooling water system is 22000m 3 , The circulation volume is 33000m 3 , The material of the condenser is HSn70-1A, the pipeline is carbon steel, the concentration rate is 6 times, the corrosion rate of the carbon steel c...
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