Production Processes

Filtration.

Solid – Liquid separation plays a vital role in the production processes of different industries, from chemicals processing to food & beverage, any time a solid has to be separated from a slurry, diluted or concentrated.

In addition and especially for high purity solid products, such as Fine Chemicals and/or Active Pharmaceutical Ingredients, filtration needs to be combined with washing in order to replace the mother liquid in the solid with a clean liquid or dissolve undesired contaminants left in the solid.  Another key requirement is to avoid cross-contamination between subsequent batches.

We support industries to get the right filtration solution providing Agitated Nutsche Filters – Dryers operating under pressure and performing multi functions:

  • Inertization
  • Solid - Liquid separation
  • Cake smoothing
  • Washing by displacement
  • Washing by re-slurry
  • Cleaning in place
  • Vacuum Drying

High containment, particularly critical in case of APIs (Active Pharmaceutical Ingredients) and especially in case of HP-APIs (High Potent Active Pharmaceutical Ingredients), is also ensured through different purpose glove-boxes.

Top performing in filtration and washing of chemical and pharmaceutical products from concentrated suspensions, they have been extensively used also for many other applications: 

  • Food 
  • Agrochemicals
  • Recovery of used materials
  • Fragrances
  • Flavours
  • Biochemicals
  • Polymers
  • Precious metals

Different materials of construction are provided, depending on product /application, including glass lined filters to be used in aggressive acid conditions.

Operating into the mechanical separation market, under the Cogeim brand, since 1976 we provided more than 700 filter-dryers to different industries:
  • Food 
  • Agrochemicals
  • Recovery of used materials
  • Fragrances
  • Flavours
  • Biochemicals
  • Polymers
  • Precious metals

As high as the filtration process efficiency is, a drying step is also normally required to obtain a dry solid. Products in dry solid form can be easily be produced using our dryers or filter-dryers, thus enabling to perform multiple steps in one single equipment. 

As many products can only be exposed to a certain temperature for a defined length of time, drying usually takes place under vacuum conditions. 

For all cases when final product is a liquid and additional purification is required, we support customer in defining the right purification solution, leveraging on our long expertise in thermal separation processes.

Being aware that all processes are interrelated and that inefficiencies in one process stage can affect neighboring processes, we support industries with an increasingly and more systemic approach from reaction up to dry powdered final product

R&D

To identify the most appropriate filtration solution we rely on our R&D centre equipped with laboratory and pilot units: tests are run on samples provided by customer in order to study product filterability, select filtration media, define the right process parameters and support scale-up. 

Process validation and reliability verification tests can also be run at customer premises using rental pilot units: field support, during tests, is available on request. 

Different physical and chemical parameters can also be determined, including solid content, density and residual moisture.

From testing to engineering and plant design, a dedicated team of scientists and engineers assist and support our customers, progressing together step by step.

Interested in our services?

Would you like to discover more about our world and solutions? Make an appointment with one of our representatives in Italy or worldwide and request a personalized offer.

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