Scale inhibitor composition for circulating water and preparation method of scale inhibitor composition

• Main Authors: FU TENG, ZHONG RUI, HOU HONGBO, ZHANG MIN, YANG SHAOCAI, ZHENG ZHIGANG, LI DING, ZHOU CHUANG, YAO ZHENGANG, WANG YUN, ZHENG FEI, ZHANG LIFENG
• Format: Patent
• Language: Chinese; English
• Published: 27.07.2021
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a scale inhibitor composition for circulating water. The scale inhibitor composition contains a phosphine carboxylic acid copolymer, polyhydric alcohol phosphate ester, a maleic-acrylic copolymer, etidronic acid and water, wherein the mass percentage ratio of the phosphine carboxylic acid copolymer to the polyhydric alcohol phosphate ester to the maleic-acrylic copolymer to the etidronic acid to the water is (10%-30%): (23%-27%): (12%-18%): (12%-18%): (23%-27%). The drug concentration of the phosphine carboxylic acid copolymer is 40%-60%; the drug concentration of the polyhydric alcohol phosphate ester is 35%-45%; the drug concentration of the maleic-acrylic copolymer is 25%-35%; and the drug concentration of the etidronic acid is 25%-35%. According to the invention, the circulating water can be kept at a very high concentration ratio without scaling, so the safe operation of circulating water equipment is protected. The circulating utilization rate of the circulating water is higher,