Preparation and performance evaluation of environment-friendly corrosion and scale inhibitors
Received date: 2004-01-25
Revised date: 2004-01-25
Online published: 2014-09-30
At present the water treatment agent used in circulating cooling water is mostly a mixture which contains phosphorous compound. Along with the unceasing increased requirement of environmental protection, the phosphorus-containing treatment agents are more and more restricted. According to the mechanism and mutual coordinated action of the corrosion inhibitor, the low phosphonic and environment-friendly corrosion and scale inhibitor(HYS-506) is chosen through the static tests, the corrosion tests and the dynamic simulated tests. Its main compositions are molybdate, phosphino-carboxylic acid, acylamino-carboxylic acid and copolymer of carboxylic acid and sulfosalt. The tests show that HYS-506 not only has excellent efficiency in corrosion and scale inhibition as compared with the prescription consisting of high phosphorus-containing compound, but is also economical. And it is environment-friendly because TP in circulating cooling water which the recommended quantity of HYS-506 is put in can meet the secondary demand of National Integrated Waste Water Discharge Standard(GB 8978-1996). So it could get remarkable environmental benefits.
Zheng Yiyun, Zhou Baiqing, Li Qin . Preparation and performance evaluation of environment-friendly corrosion and scale inhibitors[J]. Industrial Water Treatment, 2004 , 24(5) : 25 -27 . DOI: 10.11894/1005-829x.2004.24(5)..25
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