Safe and clean functionalization

Top quality

No matter which derivative you produce, such as methyl, micro or carboxymethyl cellulose – when it comes to filtration and washing, our filters offer you comprehensive advantages compared to other technologies. Highest product quality, maximum yield and efficient use of resources characterize our machines.

Cationic Starch Production

The BHS ring layer mixer AVA HRM and the continuous reactor AVA HTC-T are used in series production of cationized starches. In the first stage, the starch powder (native starch) is intensively and homogeneously mixed with the etherifying agent and sodium hydroxide (catalyst) in the ring layer mixer at circumferential agitator speeds of up to 40 m/s. Following this, etherification is carried out in a heated horizontal reactor. The reaction process is maintained continuously at processing times of between 1 h to 4 h. Finally the starch enhanced with sodium hydroxide solution is neutralized by adding acid. In this final process step a highly uniform mixing of the components is ensured by a further BHS ring layer mixer.

Further Starch Industry Applications

  • White Dextrin
  • Yellow Dextrin
  • British Gum
  • Carboxymethylation

Benefits at a glance:

  • Closed system
  • Consistently high quality and residual humidity
  • Highly efficient and reliable production process

Consistently high quality

In the production of modified starch, the rotary pressure filter is suitable for filtration, washing and drying. Processing takes place continuously in a closed system. This ensures consistently high quality and residual moisture of the end product. The unique pressure-based continuous filtration method of the RPF from BHS facilitates highly efficient and safe production, especially for demanding starch types.

Our machines in use

Rotary pressure filter (RPF)

A single rotation of the drum entails a number of different process steps, demonstrating the many facets of filtration.

Horizontal dryer (HTC-T/HTK-T)

Ultimate drying performance with optimized energy consumption.

Indexing belt filter (BF)

This type of vacuum filter is particularly gentle on sediments.

Ringlayer mixer (AVA HRM)

High throughput rates with compact dimensions.

Tests give certainty

Which technology is the right one for your process? Don’t leave anything to chance. In our test center and filtration laboratory, we test according to your specifications and identify the optimal solution for you.


Powtech 2023

9-26-2023 - 9-28-2023
NürnbergMesse - Hall 4A, Stand 213

Gulfood Manufacturing 2023

11-7-2023 - 11-9-2023


5-15-2024 - 5-16-2024


11-12-2024 - 11-14-2024

Satisfied customers worldwide


Find a sales representative

Find your personal contact person on site. We are there for you worldwide.

Find a sales representative

Find your personal contact person on site. We are there for you worldwide.