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The Influence of Ferrous Ion on the Aggregation of Residual Polymer APP4 and Its Elimination

  • Bin Chen
  • Lin Zhao
  • Shijia Chen
  • Chengsheng Wang
  • Binbin Wu
  • Xiaoyan Wu
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

The effects of ferrous ion (Fe2+) on the aggregation of residual hydrophobic-modified polyacrylamide APP4 were studied by fluorescence spectrum and dynamic light scattering (DLS). The result showed that Fe2+ was helpful for aggregation degree of APP4, which is not good for the stability of APP4 in water. Therefore, ethylenediaminetetraacetic disodium salt (EDTA) and sodium citrate were used to eliminate this influence. Several experiment results presented that EDTA can effectively eliminate the influence of Fe2+ on the residual APP4 when its concentration was 50 mg/L.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Bin Chen
    • 1
    • 2
  • Lin Zhao
    • 2
  • Shijia Chen
    • 1
    • 3
  • Chengsheng Wang
    • 1
    • 3
  • Binbin Wu
    • 1
  • Xiaoyan Wu
    • 1
  1. 1.CNOOC EnerTech-Drilling & Production Co.TianjinChina
  2. 2.Yangtze UniversityWuhanChina
  3. 3.State Key Laboratory of Offshore Oilfield ExploitationTianjinChina

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