Li H.,Heibei Academy of science |
Li H.,Hebei Academy of ScienceHebei Engineering Research Center for Water Saving in Industry |
Yan M.,Heibei Academy of science |
Yan M.,Hebei Academy of ScienceHebei Engineering Research Center for Water Saving in Industry |
And 6 more authors.
Shiyou Huagong/Petrochemical Technology | Year: 2014
An itaconic acid copolymer with scale inhibition, corrosion inhibition and dispersion was synthesized. The synergistic scale inhibition of the copolymer (IA/SHP/SAS) with electrostatic field was studied. The results of the static experiments showed that, under the conditions of electrostatic voltage 5 kV, water bath temperature 60℃ and the copolymer dosage 8 m g/L, the static scale inhibition rate was enhanced by 20.7%. In the dynamic experiments, after treatment with electrostatic fi eld (40℃), the scale inhibition was enhanced by 12.6% and the content of aragonite type CaCO3 in the scale increased obviously. The synergism of IA/SHP/SAS with the electrostatic fi eld could improve the distorting and dispersing effects of IA/SHP/SAS on CaCO3 crystals, and then the solubility of CaCO3 was enhanced. It was showed that, under the synergistic effect, the corrosion inhibition rate to A3 carbon steel was 93.1% and the light transmittance of the solution with dispersed Fe2O3 was 65.7% (IA/SHP/SAS dosage 30 mg/L). The biodegradation rate of IA/SHP/SAS was 69.5% in 28 d. ©, 2014, Beijing Research Institute of Chemical Industry. All right reserved.