Suspension crystallization hits high purity in one step
Besides static and falling film, suspension crystallization is an industrially used melt crystallization technology. The specific advantages of this technology include a compact layout, high purity in one step, low energy consumption, and low installation costs.
The advantages of suspension crystallization must be balanced against a higher mechanical complexity when compared with the layertechnologies.
The process can be divided in two blocks:
Crystallization: production of the crystals
This block consists of at least one scraped surface crystallizer for removal of the crystallization heat, and a growth vessel where the produced crystals have time to grow to a separable size.
Separation: separation of the crystals from the mother liquor
This block consists of at least one wash column with peripherals such as a melt loop with a heat exchanger to melt the crystals.
For certain applications, delivery of a skid-mounted unit may be an option.
