Chemical Recovery / MgO-Process
We have developed and continuously improved the Lenzing Mg base recovery process.
Features
- Efficient absorption system
- Minimized chemical losses
- Reduced sulphur emissions
- Reduced operating cost
Range of services (complete solutions and components)
- Recovery systems
- Liquor incineration
- Multistage absorption systems
- Cooking liquor preparation
- Treatment of odorous gases
In Detail
This system facilitates the elimination of environmental impacts and a key reduction of production costs brought about by high absorption efficiency and the integration of diffuse emissions.
The Lenzing Mg base recovery system was developed and optimized for minimized chemical losses and for efficient non-process-elements management at the same time.
The complete recovery system covers the incineration of the concentrated spent sulfite liquor together with odorous gases, the separation of the fly ash by a wet separator or electrostatic precipitator, the preparation of MgO-hydrate-slurry, which is used in the multistage venturi washers to reduce the SO2 emission at the stack and gain the raw acid. Further the raw acid is clarified and fortified in absorption towers and/or accumulators at different pressure levels.
Lenzing Technik has developed a special computer simulation using all relevant data form the DCS system to ensure a constant quality of the raw acid, compliance of emission and minimization of make-uo-MgO.
