Book Introduction
Since the advent of metal anode in the late 1960s, it has attracted the attention of electrochemical workers and has been widely used in electrolysis industry (such as chlor-alkali industry, chlorate industry, electroplating, metal protection, water treatment, seawater desalination, electrochemical synthesis, sludge smelting, etc.). ). This book introduces in detail the manufacturing process of metal anode, coating formula, electrochemical characteristics, repair and repainting of old electrode, recycling and application examples, and discusses and understands the conductive mechanism of active coating and the reasons for its deactivation from the perspectives of material structure, semiconductor, electrochemistry and electrocatalysis.
Table of contents of this book
catalogue
The first chapter is a brief history of the development of metal anodes.
First, the origin of the invention of metal anode
Second, the technical and economic effect of metal anode
Chapter II Electrode Materials
I. Characteristics of electrode materials
Second, electrocatalysis.
Chapter III Anode Process
First, the significance of studying anode process
Second, the dissolution process of anode
Thirdly, the passivation phenomenon of anode.
Four. Anode passivation mechanism
The fourth chapter is the preparation technology of ruthenium-titanium coated metal anode.
I. Preparation process
Second, the main equipment
Three. Factors affecting the quality of ruthenium coated metal anode
Chapter V Electrochemical Characteristics of Ruthenium-coated Metal Anodes
Electrochemical properties of 1. ruthenium coating
Second, the conductive mechanism of nail coating
3. Discharge mechanism of chloride ion on Ru-Ti coating
Four. Causes of deactivation of ruthenium-titanium coating
Chapter VI Improvement of Nailing Coating on Metal Anode
1. High-oxygen super-coated metal anode with iridium intermediate layer
2. Tin-antimony sandwich nail-Qin coated metal anode
Three. Palladium-containing high-oxygen super-coating metal anode
Chapter VII Operation and Management of Metal Anode Electrolytic Cell for Chlor-Alkali Production
I. Factors affecting current efficiency
Second, the protective measures when parking
Third, the economic current density
Fourthly, the modification of asbestos diaphragm.
Fifth, establish and improve management cells.
Chapter VIII Repair and repainting of ruthenium-titanium coated metal anode
First, about the standard of repainting.
Second, the choice of repainting repair methods in covered electrode.
3. Removing the old coating by sulfuric acid electrolysis.
Chapter IX Recovery of Ruthenium
First, the process of electrolytic recovery of nails
Second, the relevant chemical principles in the process of recovery
Three. Examples of recovering ruthenium
Four, the main equipment and instruments in the process of recycling ruthenium and operating requirements.
Verb (abbreviation of verb) recovers the quality of β-rucl3 xh2o.
Economic benefits of intransitive verbs
Chapter 10 Measurement of Micro-state of Metal Anode
A, metal anode coating conductivity measurement method
Second, the measurement of resistance of metal anode active coating
Three. Measurement of chlorination potential of metal anode coating
Four. Measurement of oxygen passivation life of metal anode coating
5. Phase composition analysis of metal anode coating
Determination of surface area of metal anode coating
Seven. Determination of nail content in metal anode coating
Eight. Observation on surface morphology of metal anode coating
Chapter 1 1 Other types of metal anodes
1. manganese dioxide coated metal anode
Second, lead anode
Three. Cobalt spinel anode
Chapter XII Application Examples of Metal Anodes
I. Metal anodes for chlor-alkali industry
Second, used to produce hypochlorite (bleach, disinfectant)
Third, it is used to produce perchlorate.
Fourthly, it is used for desalination of seawater by electrodialysis.
Five, used for electrolytic treatment of wool dyeing and finishing wastewater.
Six, used in electrolytic organic synthesis
Seven, hydrometallurgy and electroplating
Chapter 13 Examples of typical coating formulations
I ruthenium-containing coating
Second, non-ruthenium coating
Third, non-precious metal coatings.
Chapter 14 Prospects
1. Continuously improve the performance of ruthenium-coated metal anode.
Second, reduce the research of metal nail coating.
Third, develop new non-noble metal oxide coatings.
Fourth, pay attention to basic theoretical research.
Appendix I Reference Electrode
I. Main performance of reference electrode
Second, calomel electrode
Three, mercury-mercury oxide electrode
IV. Mercury-mercurous sulfate electrode
Appendix II Determination of Nail Content in RuCl3 xH2O by Hydrogen Reduction Method
Appendix III Quality Inspection Standard for Ruthenium Anode Coating (tentative, 1978)
Appendix IV Application of Thiourea Spectrophotometry in Ruthenium Determination
Appendix V International Atomic Scale
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