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 by determining the TiO2-suspension density is necessary to ensure product quality and optimize plant utilization.
For this complex measurement task, the LiquiSonic® measurement technology optimally equipped. The robust, maintenance-free inline measurement technology impresses above all with 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 supply tank and then fed into the filtration system. To determine the suspension density, LiquiSonic® immersion sensors can be installed both before the supply tank and in the filter inlet to ensure inline process monitoring.
The LiquiSonic® system impresses compared to traditionally used Coriolis measuring devices, especially with its good price-performance ratio, particularly with large pipeline nominal widths. In addition, the LiquiSonic® measurement system also operates with high precision and maintenance-free even with abrasive suspensions over a long period.
Installation
The LiquiSonic® immersion sensor is installed directly into the pipeline. The individual choice of process connection ensures easy and safe installation into TiO2-carrying lines from DN25.
The LiquiSonic® Controller 30 can be connected to 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 supply tank.
Typical measuring range:
Concentration range: 0 to 600 g/l
Temperature range: 10 to 80 °C
References
The LiquiSonic® measurement system is successfully used, among other things, for measuring the TiO2-suspension density in the plants of KRONOS Titan GmbH in Leverkusen.
Customer benefits
The LiquiSonic® measurement system impresses in process optimization with numerous advantages:
- very good price-performance ratio, even with pipeline nominal widths greater than DN 25
- no abrasion due to the use of titanium as a special material in the sensor head
- stable and maintenance-free operation
- easy installation through individual choice of process connections
- long-lasting operation
Thus, SensoTech offers with LiquiSonic® a stable, user-friendly, and maintenance-free measurement system that excels in determining the TiO2can be used for suspension density.
Titanium dioxide (short TiO2, exact name titanium(IV) oxide) 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.