Chemical and pharma industry

Filtration of brine for chloralkaline production

Chlor-alkali manufacturers in North America

The chlor-alkali electrolysis process requires very fine filtration in order to protect sensitive membranes.

Conventional filter systems require enormous maintenance and operating costs and often cause bottlenecks.

Reliability of systems with low maintenance requirements.

In addition to conventional sand filters with their limited filter fineness, there are a variety of systems on the market, such as plate filters or vertical cartridge filters, that filter brine in chlor-alkali production.

However, these systems are usually very unreliable and complex, resulting in high maintenance costs or high capital expenditure (CAPEX).

Fully automatic filter system with long filter cloth service life.

Membrane-based electrolysis in the chlor-alkali industry requires finest filtration with minimal maintenance and investment costs.

To protect the sensitive membrane, a precoat filtration system with wet or dry discharge is installed upstream of the electrolysis for this fine filtration task.

The solution: LENZING CakeFil

Finest filtration of the brine to protect the electrolysis membrane.

< 1 ppmfiltrate quality
Filter aidsnot needed

Filtration of brine in chlor-alkali production

Advantages of using the LENZING CakeFil system

Cost savings

Extended operating intervals due to longer filter cloth service life.

High separation efficiency

The high filter fineness of LENZING CakeFil ensures optimal conditions for efficient operation of membrane-based chlor-alkali electrolysis.

System performance

Closed system and long filter cloth service life result in high levels of automation and thus minimal manual intervention.

Discharge form

Effective discharge process minimizes fluid loss and reduces the need for complex reject treatment systems.

LENZING CakeFil

The LENZING CakeFil system is a process candle filter for cake building filtration with slurry or dry solids discharge. Its patented system enables highly efficient backwashing, thereby extending the service life of the filter fabric.

Filtration down to submicron range

Dry or slurry discharge

Efficient cake discharge

Unbeatable cloth service life

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