Both processes are followed by a refinement in which the surface is optimized for longer durability or improved gloss. Subsequently, the TiO2-suspension is filtered and the powder is dried. In this post-treatment, continuous process monitoring is necessary by determining the TiO2-suspension density to ensure product quality and optimize plant utilization.
For this complex measurement task, the LiquiSonic® measurement technology is optimally equipped. The robust, maintenance-free inline measurement technology is particularly impressive due to its excellent price-performance ratio.
Sound velocity measurement in a titanium dioxide suspension
Application
The TiO resulting from the refinement2-suspension is collected in a feed tank and then directed to the filtration system. To determine the suspension density, LiquiSonic® immersion sensors can be installed both before the feed tank and in the inlet of the filter to ensure inline process monitoring.
The LiquiSonic® system is particularly convincing compared to traditionally used Coriolis measuring devices due to its good price-performance ratio, especially with large pipe diameters. Additionally, the LiquiSonic® Measurement System also works with abrasive suspensions over a long period with high precision and maintenance-free.
Installation
The LiquiSonic® immersion sensor is installed directly into the pipeline. The individual choice of process connection ensures easy and safe installation in TiO2-carrying pipes from DN25.
The LiquiSonic® Controller 30 can be connected with up to 4 sensors. This makes it possible to monitor several measuring points simultaneously, for example, the TiO2-suspension density before filtration and before the feed tank.
Typical measurement range:
Concentration range: 0 to 600 g/l
Temperature range: 10 to 80 °C
References
The LiquiSonic® Measurement System is used successfully, among others, for measuring the TiO2-suspension density in the plants of KRONOS Titan GmbH in Leverkusen.
Customer Benefit
The LiquiSonic® Measurement System convinces in process optimization with numerous advantages:
- very good price-performance ratio, even with pipe nominal diameters greater than DN 25
- no abrasion due to the use of titanium as a special material in the sensor head
- stable and maintenance-free function
- easy installation through individual choice of process connections
- durable operation
Thus, SensoTech offers with LiquiSonic® a stable, user-friendly, and maintenance-free measurement system that is excellent in the determination of TiO2-suspension density can be used.
Titanium Dioxide (short TiO2Titanium(IV) oxide, commonly known as titanium dioxide, is used as a white pigment in paints and coatings as well as a UV blocker in sunscreens. Two processes are used in the production of titanium dioxide: the sulfate process and the chloride process.