Scale and corrosion inhibitor and preparation method and application thereof
A scale and corrosion inhibitor, mass ratio technology, applied in the field of scale and corrosion inhibitors and their preparation, can solve the problems affecting the safety, stability and economical operation of coal chemical equipment, and reduce the operating efficiency, stability and biological effects of circulating cooling water systems. Poor degradability and other problems, to achieve the effects of economy and stability, reducing system sewage discharge, reducing the amount and type of chemicals
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Embodiment 1
[0036] Example 1. A coking plant of the National Energy Group uses municipal water and reclaimed water in the industrial park as circulating water for replenishment. The water quality analysis is shown in Table 1.
[0037] Table 1
[0038]
[0039] A scale and corrosion inhibitor suitable for coal coking circulating water in the coal chemical industry, the raw material content is as follows:
[0040] In component A, zinc sulfate heptahydrate is 2-6g, sodium molybdate is 12-25g, and sodium hexametaphosphate is 5-10g. In component B, 2-phosphonobutane-1,2,4-tricarboxylic acid is 14-20 g, phosphinohydrolyzed polymaleic anhydride is 8-13 g, and 2-hydroxyphosphoacetic acid is 7-10 g. In component C, benzotriazole is 2-6g. In component D, the amount of acrylic acid-2-methyl-2-acrylamidopropanesulfonic acid copolymer is 8-15g, and the amount of sodium humate is 2-4g. In component E, the dendritic polymer (DTPA-PAMAM) is 2-4g. Deionized water accounting for 30-50% of the total ...
Embodiment 2
[0042]Example 2. A coal-to-methanol project of the National Energy Group uses municipal water and reclaimed water in the industrial park as circulating water for replenishment. The water quality analysis is shown in Table 2.
[0043] Table 2
[0044]
[0045] A scale and corrosion inhibitor suitable for coal-to-methanol circulating water in the coal chemical industry. The raw material content is as follows:
[0046] In component A, zinc salt is zinc sulfate heptahydrate, molybdate is sodium molybdate, polyphosphate is sodium hexametaphosphate, zinc sulfate heptahydrate is 2-6g, sodium molybdate is 12-25g, hexametaphosphate Sodium 5-10g. In component B, 2-phosphonobutane-1,2,4-tricarboxylic acid is 14-20 g, phosphinohydrolyzed polymaleic anhydride is 8-13 g, and 2-hydroxyphosphoacetic acid is 7-10 g. In component C, benzotriazole is 2-6g. In component D, the amount of acrylic acid-2-methyl-2-acrylamidopropanesulfonic acid copolymer is 8-15g, and the amount of sodium humat...
Embodiment 3
[0048] Example 3. A coal-to-olefins project of the National Energy Group uses municipal water and reclaimed water in the park as circulating water for replenishment. The water quality analysis is shown in Table 3.
[0049] table 3
[0050]
[0051] A scale and corrosion inhibitor suitable for coal-to-olefin circulating water in the coal chemical industry. The raw material content is as follows:
[0052] In component A, zinc salt is zinc sulfate heptahydrate, molybdate is sodium molybdate, polyphosphate is sodium hexametaphosphate, zinc sulfate heptahydrate is 2-6g, sodium molybdate is 12-25g, hexametaphosphate Sodium 5-10g. In component B, 2-phosphonobutane-1,2,4-tricarboxylic acid is 14-20 g, phosphinohydrolyzed polymaleic anhydride is 8-13 g, and 2-hydroxyphosphoacetic acid is 7-10 g. In component C, benzotriazole is 2-6g. In component D, the amount of acrylic acid-2-methyl-2-acrylamidopropanesulfonic acid copolymer is 8-15g, and the amount of sodium humate is 2-4g. I...
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