Chemical and pharma industry

Filtration of active pharmaceutical ingredients (API)

Filtration of filter aids

Pharmaceutical companies filter solids from an enzyme broth to produce active ingredients used, for example, in the manufacture of blood pressure-lowering medications.

Conventional filtration typically relies on simple disposable filtration systems, which require frequent replacement of the filter bags.

Backwash filtration systems are increasingly being used to filter these solids.

Filter aids in the filtrate.

Large amounts of filter aids end up in the filtrate, pushing the high-cost monofilament bags used for filtration to their limits and causing them to clog. These filter aids also enter the downflow spiral-wound membranes, reducing their performance, leading to frequent manual intervention, and thus resulting in increased costs.

No product loss and minimal manual intervention.

The use of a loss-free filtration technology capable of filtering particles smaller than 10 µm ensures optimal protection of the membrane. This allows for a significant increase in the throughput of the entire system without the need for manual filter changes.

The solution: LENZING OptiFil

Rapid and uniform formation of a filter layer with a high, guaranteed filter fineness.

< 10 µmFilter fineness
800 L/hThroughput
Continuous operationvirtually loss-free

Process diagram of a LENZING OptiFil installation in the filtration process

LENZING OptiFil advantages

Advantages of using a LENZING OptiFil system.

High filter fineness

The use of precision fabrics ensures high product quality.

Efficient backwash

A patented backwash mechanism enables continuous operation for several months.

System performance

The closed system, combined with long filter service life, enables a high degree of automation and reduces manual intervention to a minimum.

LENZING OptiFil

The LENZING OptiFil system is a reliable backwash filter for the finest filtration of industrial fluids and in water treatment. Its patented backwash system enables maximum process continuity with minimum backwash quantities.

High backwash efficiency (patented)

Filter fineness down to 1 μm

Very high throughput rates

Completely closed system

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