*3.3. Implementation of Industrial DTB Crystallizer Unit*

After the confirmation of the initial findings by continuous crystallization trials, the process, including the heat and mass balance, the design of equipment and further relevant basic engineering deliverables, was elaborated by GEA Messo GmbH. The industrial-scale continuous crystallization plant was then successfully installed at the customer's site (Figure 9).

**Figure 9.** (**a**) Scheme of an industrial DTB crystallizer, by GEA Messo GmbH. (**b**) Crystals from the industrial DTB crystallizer (crystal size d´ = 1980 μm)

The performance of the crystallization plant was fully achieved with regards to product purity as well as product yield on the one hand, and product parameters like crystal size and crystal size distribution on the other.
