Dissertation > Excellent graduate degree dissertation topics show

The Study of Metal Corrosion Inhibitor in Chlorine Dioxide Medium

Author: LuZuo
Tutor: WangKuiTao; GaoJinLong
School: Hebei University of Science and Technology
Course: Chemical Engineering and Technology
Keywords: chlorine dioxide metal inhibitor synergies inhibition rate corrosion rate
CLC: TG174.42
Type: Master's thesis
Year: 2012
Downloads: 33
Quote: 0
Read: Download Dissertation

Abstract


Chlorine dioxide which is a weak acid and oxidation has excellent performance ofsterilization, deodorant, bleach, water purification, removal of formaldehyde and so on.With the promotion of chlorine dioxide application market to solve metal corrosionproblem caused by its own characteristics is imminent, To break through this difficultywill be a wider space for the development of chlorine dioxide.Some corrosion inhibitors were studied with Tafel polarize curve, the static weightloss method and scanning electron microscope analysis were used to study the somecorrosion inhibitors. At20℃, Tafel polarize curve were used to screening corrosioninhibitors of brass, A3steel and aluminum alloy. At the same time, explore theperformance of corrosion inhibitor, and the principle of synergies.The results show that: Sodium molybdate, benzotriazole(BTA) or sodium dodecylbenzene sulfonate(DBSAS) single used could inhibit brass corrosion, and BTA has goodcorrosion inhibitor synergy effect. When total concentration of BTA and sodiummolybdate was300mg/L, their best compound proportion is1:1, and the inhibitionefficiency reachs to93.10%. When the composite total concentration greater than or equalto400mg/L, brass can basically avoid corrosion, in100mg/L chlorine dioxide solution.Sodium benzoate, sodium dodecyl sulfatet(SDS) or wain-60single used could inhibitA3steel corrosion, and SDS has good corrosion inhibitor synergy effect. When totalconcentration of cerium nitrate and SDS was300mg/L, their best compound proportion is3:2, and the inhibition efficiency reachs to67.59%. The inhibition rate was significantlyhigher than the inhibition rate of the same concentration of a single inhibitor, corrosionlevel from severe corrosion reduced to moderate corrosion.Sodium nitrate, dodecyl sulfonic acid sodium salt (DSASS) or BTA single used couldinhibit aluminum alloy corrosion, and sodium nitrate and DSASS showed excellentcorrosion synergies. When total concentration of sodium nitrate and DSASS was300mg/L, their best compound proportion is3:7, and the inhibition efficiency reachs to96.28%. When the composite total concentration reach to600mg/L, aluminum alloy canbasically avoid corrosion, in100mg/L chlorine dioxide solution.

Related Dissertations

  1. Study on Properties of Thermal Shock and Ablation Resistance for Gr/Al-Mg Composites,TB332
  2. Urothermal Synthesis, Structure and Characterization of Functional Coordination Polymers,O631.3
  3. The Preliminary Study on SEA Brine in Inhibition of Pathogenic Fingi and Application,S482.2
  4. Study on the Syntheses and Antibacterial Acticity of Metal Organic Complexes Built from Three Carboxylate Ligands,O621.13
  5. Thermal Stability of Complexes of Chitosan Quaternary Ammonium Salt and Metal Ion,O634
  6. Effects of Enzymes on Metabolism of Polycyclic Aromatic Hydrocarbons in Plant,X173
  7. Effects of Angiogenic Factor on Follicular Angiogenesis and Development in Immature Mouse,S865.13
  8. Molecular Cloning, Prokaryotic Expression and Characterization of a Novel Trypsin Inhibitor in the Frog, Lepidobatrachus Laevis,Q78
  9. Electrochemical Performances of Mg-Li and Mg-Li-Ce Alloys,TG146.22
  10. Oxygen Delignification and Bleaching with Chlorine Dioxide of Reed Kraft Pulp,TS745
  11. Syntheses, Structures and Properties of Metal-organic Frameworks Based on Dicarboxylate Ligands,O621.13
  12. Spectra and Electrochemical Behavior with Analytical Application of Three Herocyclic Bis-Schiff Bases,O626
  13. The Experimental Study of Semiconductor Laser Radiation and 5-FU Sustained Release Repressed Oral Malignant Tumor Cell,R739.8
  14. Environmental Effects of Poisonous and Harmful Substances in the Typical Industrial Solid Wastes,X705
  15. Research on Detection of the Carbamate Pesticides by Aminoacids-matal Ions Films Chemically Modified Sencor,S481.8
  16. Expression, Purification and Characterization of Trucated Type Recombinant Buckwheat Trypsin Inhibitor,R284.1
  17. Different metal base and binder zirconia all-ceramic crowns on the color of,R783
  18. Theoretical study M_x (M = Cu, Ag, Au) / graphene structure and stability,O613.71
  19. Study on the Synthesis、Preparation and Properties of Modification Phenolic Resin/NBR Composite Adhesive,TQ433
  20. Effect of Three Kinds of Porcelain Fused to Metal Crowns on the Periodontal Tissue of the Abutment Teeth,R783
  21. In-situ Electrosynthesis and Characterization of Molecularly Imprinted Polymers,O631.3

CLC: > Industrial Technology > Metallurgy and Metal Craft > Metallurgy and Heat Treatment > Metal corrosion protection,metal surface treatment > Corrosion control and protection > Metal surface protection technology > Metal preservatives,corrosion inhibitors
© 2012 www.DissertationTopic.Net  Mobile