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 impresses with its very good 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 impresses compared to traditionally used Coriolis measuring devices, especially with its good price-performance ratio, particularly for large pipeline diameters. Additionally, the LiquiSonic® Measuring system also works with abrasive suspensions over a long period of time with high precision and maintenance-free.
Installation
The LiquiSonic® immersion sensor is directly installed in the pipeline. The individual choice of process connection ensures easy and secure installation in TiO2-carrying lines from DN25.
The LiquiSonic® Controller 30 can be connected with up to 4 sensors. This allows simultaneous monitoring of multiple measuring points, 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® Measuring system is successfully used, among other things, for measuring the TiO2-suspension density in the plants of KRONOS Titan GmbH in Leverkusen.
Customer benefit
The LiquiSonic® Measuring system convinces in process optimization with numerous advantages:
- very good price-performance ratio, even with pipe nominal diameters larger 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 measuring system that can be excellently used in determining the TiO2-suspension density.
Titanium dioxide (short TiO2, exact name titanium(IV) oxide) is used as a white pigment in paints and coatings and as a UV blocker in sunscreens. Two processes are used in the production of titanium dioxide: the sulfate process and the chloride process.