Titanium Anode for Hydrometallurgy refers to a titanium anode used in the hydrometallurgical process. It is also a Lead Dioxide Titanium Anode.As for hydrometallurgy it is a metal extraction and refining technique that involves the use of chemical solutions to dissolve and separate metals. Electrolysis is a common technological step in this process. Titanium anodes are widely used in electrolysis processes due to their excellent corrosion resistance, long life and low energy consumption, especially in hydrometallurgical processes dealing with highly corrosive media such as acidic or alkaline solutions. These properties make titanium anodes ideally suited for use in processes where metals such as copper, Nickel Material, cobalt, etc. are extracted from ores. In short, titanium anodes are an important tool in the field of hydrometallurgy for improving the efficiency and economy of metal extraction and refining processes.
Titanium-based lead dioxide technical indicators
A. Technical performance of insoluble anode plate (1) The anode plate is made of titanium base coated with precious metal interlayer, α-pbO2 and β-PbO2, and the conductive rods are made of. Titanium-copper composite rods: the anode plate and conductive rods are connected by welding.
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(2) The thickness of the base titanium mesh is 2mm, the thickness of the plating layer is not less than 0.6mm on one side, and the thickness of the finished product is not less than
3.5mm; the surface of the plate should be flat, and there should be no delamination, cracks and other inclusions on the surface of the finished product. ?
(3) Plate verticality: the upper and lower plate surface error of less than ± 6mm
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(4) Life expectancy: corrosion resistance, bending resistance, life expectancy of more than 2 years
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(5) After processing, the requirements of plane tolerance, surface tolerance of less than ± 5mm, diagonal tolerance of less than 3mm
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(6) Strictly in accordance with the drawing processing
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B Electrochemical properties of insoluble anode plate
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Electrical conductivity of finished anode plate: 4---5*10-5Ohm;
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Surface hardness: HRC=11
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Oxygen precipitation overpotential: 1.73-1.9v (Vs. SCE, 150g/L sulfuric acid, 1000A/m2)
Electrochemical performance and life test (Reference standard HG/T2471-2007 Q/CLTN-2012)
Title | Plating? ? mm | Oxygen precipitation potential V | Test Conditions | CL-content | Lifespan? ? ? ?h |
Titanium-based lead dioxide | 3 | <1.73 | 15% H2SO4 | <2g/L | >500 |
Actual utilization data:
A. Actual usage data of 10,000 tons of electro-nickel per year
Purpose of use:
1、lead dioxide anode in electro-nickel system and iridium-tantalum anode cost-effectiveness
2、The influence of corrugated plate lead dioxide anode on cathodic deposition of nickel
Working condition: PH=1.5? ?Sulfuric acid: 40g/L? ? ?Nickel sulfate: 40-55g/L
Boric acid: 5-7g/L? ? Temperature: 70°? ? ? ? Pole spacing: 60-70mm (plus diaphragm bag)
Chloride ion: <1g/L
Anode size: 4*820*1260 (lead dioxide) 4*760*820 (iridium tantalum) 8*760*820 (lead plate)
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Anode Type | Current Density? ?A/m2 | Slot voltage V | Current Efficiency | Longevity |
Lead anodes | 180-230 | 3.9-4.6 | 89%-91% | 12-18 months |
Iridium-tantalum anodes | 180-230 | 3.4-4.0 | 93%-95% | >24 months |
lead dioxide | 180-230 | 3.8-4.5 | 92%-94% | >24 months |
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B. Annual output of 2000 tons of secondary decopperization actual use data
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Project Name: Lead Dioxide Anode for Secondary Copper Removal Production System
Purpose of use: lead dioxide anode in the secondary decopperization system and lead anode cost-effectiveness
Working condition: PH=1.5? ?Sulfuric acid: 170g/L? ?Copper ion: 50-55g/L
Bone gel: 5-7g/L
Temperature: 60°? ?Pole spacing: 55mm
Chloride ion: <50ppm
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Anode Type | Current Density? ?A/m2 | Slot voltage V | Current Efficiency | Longevity |
Lead anodes | 180-210 | 2.-2.1 | 89%-91% | 12?months |
lead dioxide | 180-210 | 1.9-2.1 | 92%-94% | >24 months |
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