BoCross Dynamic and BoCross MicroScreen are dynamic crossflow filters. In contrast to classic crossflow filtration, in dynamic crossflow filtration with the BoCross filters, the typical tangential overflow of the filter surface is not generated by the geometric flow in the apparatus but by rotors.

This principle offers significant process advantages. There are almost ideal physical conditions for the separation process. The throughput rates are therefore up to 10 times higher than in classic crossflow filtration. Furthermore, it is also possible to process suspensions with high concentrations or viscosities.

BoCross Dynamic filter – High Final Concentration and Clear Filtrate.

The range of services of the BoCross Dynamic filter allows micro filtration and ultra filtration of even nanoscale suspensions. The shear gap principle ensures almost ideal physical conditions for the separation process and thus, for the high concentration of suspensions.

BoCross MicroScreen filter ­– Classification Under Difficult Process Conditions.

Dynamic sieve filtration allows the separation of coarse or fine grain fractions. Highly viscous and concentrated suspensions can be filtered in a closed apparatus with high throughput and sharp separation cut.

Crossflow Filtration. For Difficult Suspensions – macro, micro, or nano.

BoCross Dynamic and BoCross MicroScreen are dynamic crossflow filters for micro, ultra, dia or sieve filtration. With the BoCross filter series, suspensions with high concentrations or viscosities can be thickened, washed, cleared or classified.

Recovery of Catalysts by Dynamic Precoat Filtration

In a BDO production plant (butanediol process) 24 BoCross MicroScreen filter units of 10 m² each are applied for recovery of catalyst by dynamic precoat filtration.

Dynamic Sieve Filtration of a High Viscous Polymeric Suspension

From a high valuable polymer dispersion coarse particles (x > 20 µm) have to be separated completely. The difference in density of the particles compared to the fluid is negligible.

Concentrating and Washing of Titanium

The BoCross Dynamic filter is used for concentrating and washing of a modified and very fine titanium dioxide which has to be further processed.

Concentrating and Washing of a Pharmaceutical Iron Hydroxide

A pharmaceutical suspension is synthesized so that a considerable amount of salt is formed during neutralization. This microfine suspension must be cleansed (washed out) of salt and further concentrated.

Concentrating and Washing of Calcium Carbonate - Special PCC Product

For concentrating a fine-particulate special PCC product a BoCross Dynamic filter with 6 m² filtration area is operated.

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