products for Chemical and petroleum industries

Recovery of high value streams by separating solids from liquids and liquids from liquids with dissimilar densities.


De-watering and sludge recovery Decanters

   The ANDRITZ decanter centrifuges A are basic solid bowl decanter  centrifuges to which features can be added for special applications. The  solid bowl is ideal for clarification of liquids, thickening of  sludges, and separation of solids     

  • gas-tight, vapor-tight, or pressurized operation
  • low vibration levels
  • absolute pressures from 0 to 8 bar
  • -90° C to +200° C
  • CIP cleaning
  • flameproof or explosion-proof standards making the decanter ideal for applications with solvents and hazardous materials

Constant separation results, even at fluctuations in the volumetric flow, the process conditions, or the product characteristics 

 Materials such as titanium, pure nickel, or Hastelloy provide the security essential in demanding process applications.

  Liquid phases of differing densities can also be separated. 


2 or 3 phase Separators

For the chemical industry, we provide

clarifiers, separators, and concentrators for

liquid/liquid, liquid/solid and liquid/liquid/

solid separation. These units are suitable

for a wide range of applications, including:

ƒƒ inorganic chemicals

ƒƒ industrial fermentation processes

ƒƒ the biotechnology industry

ƒƒ the biofuel industry

ƒƒ the petrochemical industry


Dynamic Cross-Flow Filter

 In this technology, overlapping, rotating discs generate a differential  speed in relation to one another. This design creates a turbulent  crossflow without using a pump to circulate the slurry. By applying wall  shear stress that is at least 50% higher than in conventional crossflow  systems, the formation of a clogging layer, which obstructs the  permeate flow, can be avoided or at least reduced significantly. Ceramic  filter membranes are installed as standard, but metal filter membranes  can also be installed. Upgrades for existing plants, with a DCF being  included downstream of a traditional crossflow filter, enhance the  process, reduce energy costs, and increase the throughput. In any event,  removal of bottlenecks is often the main reason for installing a DCF,  and in some cases, the reduction of energy consumption is motivation  enough.