Technologies & Solutions
Sulfuric acid
Sulfuric acid concentration system
Our Sulfuric acid concentration system employs various evaporation modes based on material concentration and impurities. Regular modes include single-effect and multiple-effect evaporation, while the multiple-effect evaporation further categorized into cocurrent flow and counterflow systems. These modes utilize falling film evaporation, rising film evaporator, or forced circulation evaporation techniques, equipped with blow-off processing further more to improve the sulfuric acid concentration or remove the fluorine and chlorine.
The diluted sulfuric acid concentration could reach 60%-95% through graphite evaporation system, which can be further more improved by tantalum evaporator. Tantalum is the best corrosion resistant metal in high temperature sulfuric acid system. Because it can form a stable oxide film on the surface, the annual corrosion rate is less than 0.01 mm in 96% sulfuric acid at 150-200 ℃. The service life of tantalum in waste sulfuric acid equipment can reach more than 10 years.
Forced circulation is ideal for evaporating and concentrating mediums prone to fouling and crystallization, characterized by high concentration, viscosity, and the presence of granules. By accelerating the flow speed of the medium, forced circulation prevents fouling on internal walls, ensuring optimal heat transfer efficiency is maintained.
Choose between block hole type graphite evaporators or tubular graphite evaporators based on your medium’s characteristics. Additionally, select from graphite axial waterjet pumps or PTFE waterjet pumps to complement the characteristics of the forced circulation pump.
Sulfuric acid is commonly utilized as a raw material in metallurgy, titanium dioxide production, and various other industries to obtain lower concentrations of sulfuric acid. Our evaporation and concentration system plays a vital role in achieving the desired consistency of sulfuric acid for a wide range of applications.
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