Selection of titanium agitator in chemical plant| 3 cases explain the selection of materials

Published by Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd on 2026-07-21

The person in charge of a dye factory workshop in Shandong fell into a dilemma when selecting the spare parts of the mixer, TA2 Titanium available on the market, TA10 contains palladium and titanium, 316L stainless steel, The difference in procurement costs can be up to five times.The wrong material selection may lead to frequent downtime and replacement of spare parts, or cause material scrap.Combined with three sets of practical application cases in chemical field, the material selection idea of mixer can be quickly clarified to avoid purchasing pit.

Dye intermediate production 5m³ reaction kettle, medium acetic acid mixed with a small amount of dilute sulfuric acid, normal pressure 80℃ conditions.316L stainless steel agitator was originally selected, and corrosion perforation occurred after two years of use.Replacement TA2 Industrial Puretitanium stirrer, equipped with Φ600mm blades, Φ70mm stirring shaft, with temperature resistant mechanical seal and 5.5kW motor.Five years into service, Blade wall thickness not significantly reduced, It is estimated that it can continue to operate for 8 - 10 years, Integrated five-year cycle accounting, 40% lower overall cost than stainless steel solutions, acetic acid, neutral weak acid condition, TA2 has a very high cost performance.

Phosphoric acid reactor of phosphate fertilizer plant, medium is 8% dilute sulfuric acid mixed phosphoric acid, temperature 90℃ normal pressure operation.This condition belongs to reducing corrosion environment, The corrosion resistance of ordinary TA2 pure titanium will decrease, Project selection TA10 Palladiumtitanium stirrer, blade Φ700mm, stirring shaft Φ80mm, equipped with 7.5kW motor.Passivation film remains intact after four years of operation, No signs of blade corrosion, Estimated service life 12‑15 years, Compared with TA2, the life span is increased by more than half., Much better than stainless steel.

Electroplating plant nickel plating bath stirring conditions, medium for nickel sulfate, boric acid mixed chloride plating solution, temperature 50℃.Titanium is easy to affect the quality of plating solution in this kind of plating system, N6 pure nickel stirrer is selected for the project, Blade Φ500mm, Stirring shaft Φ60mm, Supporting 4 kw motor.After six years of operation, the equipment runs stably, and the nickel material does not introduce impurities into the plating solution to ensure the quality of the coating.

Comprehensive cases can summarize the selection ideas: acetic acid, neutral weak acid environment priority TA2 titanium;Under reducing corrosion conditions such as dilute sulfuric acid, TA10 containing palladium and titanium is preferred;Chlorine-containing plating solution system, preferably N6 pure nickel.Selection is not blindly selecting high-priced materials, but adapting to working conditions is the core.Low-cost materials match the wrong working conditions and may be damaged within a year;Choose the right brand, the equipment can run stably for more than ten years, and the comprehensive cost is more advantageous in terms of lengthening the cycle.Based in Baoji China titanium valley supplier, can combine medium, temperature, speed to provide selection reference.

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frequently asked questions

Q: Does acetic acid weak acid condition have to be TA10? acetic acid, Neutral weak acid preference TA2, TA10 upgrade is required for reducing dilute sulfuric acid environments, Avoid over-investment.

Q: Why is N6 nickel stirrer preferred over titanium? plating bath environment, Titanium material will interfere with plating solution system, N6 Pure nickel does not introduce impurities, More suitable for electroplating process.

Q: What information do you need to provide to suppliers for mixer selection? reactor volume, medium components, temperature and pressure, working speed, Easy for engineers to match blade shapes, texture, Power of the motor.

disclaimer

Case Study, Life description from field project experience, For technical reference only, Not as engineering design, Direct basis for purchasing contract.medium concentration, Temperature fluctuations can affect actual equipment life, Chemical mixing equipment selection recommendations by qualified engineers and technicians combined with working conditions, Comprehensive evaluation of national standards.