Phosphorus-free corrosion and scale inhibitor with sterilizing effect and preparation method and application thereof
A technology of corrosion and scale inhibitor and composition, applied in the field of water scale inhibitor, can solve the problems of lack of dispersing function and corrosion inhibition function, narrow water quality adaptation range, and inability to be biodegraded, etc., and achieves treatment cost and daily maintenance workload. The effect of reducing and alleviating secondary pollution problems and ensuring safe and stable operation
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[0041] Example 1
[0042] Take the low-alkali and low-hardness water treatment as an example. After the reactor is rinsed, 42% deionized water is injected, the mixer is turned on, and the scale-inhibiting and sterilizing ingredient imidazoline or modified imidazoline amide 10%, and sulfonic acid-containing olefin copolymer are sequentially added. Content 15%, carboxylic acid homopolymer 5%, ethyl acrylate / 2-acrylamide-2-methylpropanesulfonic acid copolymer 10%, turn on the heating or condensing device, keep the temperature at 28℃, and then add solid Add 15% of the soluble zinc salt to the corrosion inhibitor, increase the temperature by 40℃~45℃, and keep the reaction for 30~60 minutes; turn on the condensing circulating water, reduce the temperature to 25℃~30℃, add 3% imidazoles according to the proportion, and stir for 20 In ~30 minutes, open the drain valve, filter the above-mentioned medicinal solution into a packaging barrel to obtain the phosphorus-free corrosion and scale i...
Example Embodiment
[0045] Example 2
[0046] Take the treatment of medium-alkali and medium-hard water as an example. After the reactor is rinsed, 39% deionized water is injected, the mixer is turned on, and the scale-inhibiting and sterilizing ingredients imidazoline or modified imidazoline amide 12%, sulfonic acid-containing olefin copolymer are added in sequence Content 15%, carboxylic acid homopolymer 5%, ethyl acrylate / 2-acrylamide-2-methylpropanesulfonic acid copolymer 10%, turn on the heating or condensing device, keep the temperature at 30℃, and stir for 15-30 Then add solid corrosion inhibitors and 15% soluble zinc salt in turn, increase the temperature by 40℃~45℃, and keep the reaction for 30~60 minutes; turn on the condensing circulating water, reduce the temperature to 25℃~30℃, add imidazoles according to the ratio The substance is 4%, stirred for 20-30 minutes, opened the drain valve, and filtered the above-mentioned liquid medicine into the packaging barrel to obtain the phosphorus-fr...
Example Embodiment
[0049] Example 3
[0050] Take the treatment of high alkali and low hardness water as an example. After the reactor is rinsed, 15% deionized water is injected, the mixer is turned on, and the scale inhibitor and sterilization ingredient imidazoline or modified imidazoline amide 15%, sulfonic acid group-containing olefin copolymer are added in sequence Content 15%, carboxylic acid homopolymer 8%, ethyl acrylate / 2-acrylamide-2-methylpropanesulfonic acid copolymer 12%, turn on the heating or condensing device, keep the temperature at 30℃, and stir for 15-30 Then add solid corrosion inhibitors and 15% soluble zinc salt in turn, increase the temperature by 40℃~45℃, and keep the reaction for 30~60 minutes; turn on the condensing circulating water, reduce the temperature to 25℃~30℃, add imidazoles according to the ratio The substance is 5%, stirred for 20-30 minutes, opened the discharge valve, and filtered the above-mentioned medicinal solution into the packaging barrel to obtain the p...
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