Amino Acids

Larox® RT and Larox® PF filters

With over 45 years of expertise and over 40 global references, our advanced filtration technology powers multiple production lines, efficiently producing essential amino acid products like Glutamic acid, Leucine, Methionine, Threonine and Aspartame every single day.
Advanced filtration expertise

With over 45 years of experience and 40 global references, Metso have successfully filtered amino acids across a total filtration area exceeding 600 m²

Comprehensive portfolio

Multiple production lines use a combination of Metso filters,  leveraging the benefits of different technologies

Sustainability

Larox® RT and Larox® PF filters are a part of the Metso Plus portfolio

Metso filters in Amino acid applications

  • Metso vacuum filters build a horizontal cake, providing even cake thickness which then results in excellent cake washing and highly consistent cake quality and moisture.
  • Larox® RT and Larox® PF filters combine multiple unit operations like; separation, highly efficient solids washing and solids drying in one single unit eliminating individual equipment’s and intermediate product handling for each unit operation.
  • Gentile handling of solids (crystals), while feeding the solids by gravity feed Larox RT filters combine a gentile cake build up with excellent separation and washing results.
  • Several CIP (Clean In Place) options are available to, depending on the product/process requirements, additionally the units can comply with Good Manufacturing Practice (GMP) is required
  • Metso pressure filters provide low and coherent residual moistures for cakes utilizing a final cake pressing force up to 16 bar.
  • Cake washing on Larox® RT can be either co (fresh liquid) or counter current (recirculating the washing liquid around the cake). Even cake washing with different process liquids can be combined in the same unit.
  • Larox® RT can be executed fume tight, offering an isolated & secured process area in case product quality has to be controlled closely while eliminating any contamination risk.
  • Metso has over 40 filters to Amino acid producers around the world, helping them save energy, while at the same time increase yields and reduce costs and improve availability.
  • Larox® filters are easy to adapt to both old and new production lines and can be installed with minimal downtime.
Larox RT filter amino acids application

Benefits

  • Improved quality and consistency
    • Efficient cake washing improves high end product quality
    • Easy batch identification and traceability due to automated units
    • Fully automatic operation results in a more consistent product
    • Options for GMP, FDA and CIP to match process requirements
  • Increased production
    • High availability due to continuous and/or fully automatic operation
    • Automatic operation simplifies product batch handling and batch changes
    • Inline cloth washing of Larox filters ensures consistent product quality combined with maximum cloth lifetime
  • Savings in water and drying costs
    • Mechanical pressing adding (pre-) drying step in the filtration unit, minimizing final drying cost.
    • Horizontal cake arrangement with Larox filters provide most efficient cake washing, reducing the washing ratio while increasing process liquid consistency
  • Fully automatic operation
    • Automatic process control resulting in consistent quality
    • No manual intervention needed, eliminating operator impact on recipe and product quality
  • Savings in wash liquid
    • Effective cake washing on Larox RT and PF filter, due to horizontal cake formation and flooded cake washing
  • Reduction in effluent production and improvement in effluent quality
    • Wide range of cloth options allow process optimization and can provide exceptionally clear filtrate

Applications

Metso filters have been providing advanced technologies for various amino acid applications and more:

  • Glutamic acid (RT filters)
  • Threonine (RT filters)
  • Leucine (Filter presses)
  • Aspertame (Pressure filter upstream and RT filter for the final prodict )
  • Methionine (RB filters)
  • ...
Applications
Benefits of Larox® RT in Amino Acids production
  • Superior cake washing
  • Multiple cake washing options, including counter current, different liquids, etc.
  • Crystals are not damaged during processing resulting in better yield, recovery and washing
  • Full cake discharge
  • Continuous cloth washing with the option for secondary caustic or acid washing
  • Continuous operation giving consistent product quality
  • CIP cleaning option
  • Options for GMP and/or FDA certification
  • Low operating cost with minimal operator attendance required
amino acids application - cake washing flowsheet
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Larox® RT and Larox® RT-GT filters offer fully continuous multi-step processing in a single unit for various different applications.
Larox® RT basics
Larox® RT basics

Larox® RT horizontal vacuum belt filter offers safe and optimized multi-step processing in a single unit for a wide range of complex Industrial & Chemical Processing Industry applications. The filter cloth is supported by a rigid vacuum tray and the filter is capable of cake washing in both co-current and counter-current modes. The filter handles a wide range of feedstocks and produces high-purity products cost effectively.

  • Separates slurries into filter cake and clear filtrate continuously
  • Washes co-current and counter-current filter cake
  • Increases dry solids content through mechanically compressing the filter cake
  • Uses hot gas (air or steam) and infrared energy for thermal drying of the cake
Metso Larox PF filter

Benefits of Larox® PF in Amino Acids production

  • Excellent cake washing
  • Closed processing area, only opened for solids discharge
  • Mechanical pressing maximizing the solid content in the cake
  • Cake discharge scrapers
  • Automatic high pressure cloth washing & sanitation options
  • Fully automated operation eliminating operator impact
  • CIP cleaning option
  • Options for GMP and/or FDA certification
  • Low operating cost with minimal operator attendance required
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Larox® PF basics

Get a filter designed for easy maintenance, superior performance, and consistent results under varying process conditions. Larox® PF pressure filters are fully automatic recessed-plate diaphragm filters with horizontally oriented chambers. The continuous filter cloth ensures thorough cloth washing and efficient cake discharge from each chamber at every cycle.

  • Offers high capacity with proven efficiency and reliability
  • Gives you low overall operating costs and competitive total cost of ownership
  • Produces dry, consistent, and homogenous filter cake and efficient solids wash
  • Offers fully automatic operation, self-diagnostics, and flexible operation
  • Reduces floor space requirements
Larox® PF filter
Comprehensive filtration portfolio
Beside the widely used Larox RT and Larox PF filters, Metso filtration has the broadest portfolio allowing to consider alternative filtration technologies like, but not limited to conventional filter presses, rubber belt and liquid polishing filters.
Visit Metso's industrial filtration portfolio

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