Particular & crystal clear

Solutions for reliable technical salt and soda ash production

Soda ash and technical salts are a vital ingredient for a vast number of everyday products. They can be used, for instance, to make glass, detergents, tableware, lighting, consumer electronics, food, animal feed, and pharmaceuticals. Without crystalline additives, manufacturers would not be able to meet the growing global demand.

Creating impact and added value

Producers of soda ash and technical salts are looking for ways to meet the high demand for their product, while at the same time meeting the demand for greener, more efficient and sustainable production. The production processes and means of transportation are being reviewed and renewed.

ANDRITZ supports this with research and pilot plant tests executed by knowledgeable and highly skilled process engineers.

Pioneering dewatering and drying solutions

As many of the soda ash and technical salt manufacturing processes involve solidification, thickening, dewatering, drying, calcination and cooling, ANDRITZ separation specialists are working in close collaboration with the industry to develop green production plants that meet consumer demands.

Our pilot plants around the world determine and test next-gen dewatering and drying solutions. Whether the customer is a start-up with a great idea for creating new applications or upcycling waste, or a known partner with a need to improve efficiency in an existing process, our team is there to support them. All backed up by modern automation solutions.

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Key application areas

Whether you produce ammonium chloride, ammonium sulfate, calcium chloride, carbonate sludge, crude and refined sodium bicarbonate, dense soda ash, ferrous sulfate, potassium sulfate, sodium chloride, sodium sulfate or other salts, we have the in-depth process knowledge and a range of technologies to help make your operation successful.

How can we support your production process

ANDRITZ specialists have gained an extensive knowledge of solidification, thickening, dewatering, drying, calcination and cooling through multiple stand-alone and turn-key batch and bulk projects at various (multinational) production plants of soda ash and technical salt manufacturers. They know that each type of raw material requires a different production method to reach the desired end product. With endless installations worldwide, ANDRITZ has a proven track record of excellent results with very little downtime.

Example layout for a dense soda ash system utilizing fluid bed technology


The right solution for your separation challenge

Our current portfolio enables us to create next-gen dewatering and drying solutions to achieve sustainable nutrition, advanced transportation and much more.


ANDRITZ Krauss-Maffei pusher centrifuge SZ

The Krauss-Maffei pusher centrifuge is a continuous filtration centrifuge for solid liquid separation. It is designed to perform reliably and efficiently even under tough process conditions. 

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ANDRITZ Paddle Dryer

ANDRITZ Gouda paddle dryer

The ANDRITZ Gouda paddle dryer is a fully enclosed machine that guarantees safe handling of food products and that can be customized to meet your needs. Moreover, the machine design pays special attention to accessibility for cleaning purposes. 

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ANDRITZ Plate dryer

The ANDRITZ plate dryer is used for continuous drying of free-flowing bulk materials. It has been tried and tested in over 400 applications and is available in atmospheric, gas-tight or vacuum configurations. The ANDRITZ plate dryer gently dries sensitive products, toxic products and products containing solvents with no impact on the environment. 

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ANDRITZ Fluid bed dryer

The ANDRITZ fluid bed dryer can be designed as a dryer only, as a cooler only, or as a combination of dryer and cooler. Heat and mass are transferred purely by convection between the fluidization gas and the product. The construction material can range from carbon steel to high-alloy clad carbon steel for parts in contact with the product. 

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ANDRITZ Thickening and clarification systems

ANDRITZ thickening and clarification solutions are designed to achieve the highest production rates without compromising efficiency. For all counter-current decantation (CCD) plants, the new and improved ANDRITZ inter-stage mixing and dilution system for CCD circuits helps to reduce the footprint and consequently cut CAPEX while maintaining low operating costs. 

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ANDRITZ Decanter centrifuge

The ANDRITZ Decanter with a special A4 design is able to cope with scorching temperatures while ensuring the solids emerge as dry as possible, with salt moisture not exceeding 10%. In addition, the design includes lubrication and seals to minimize maintenance interaction and ensure the maximum possible availability of our product. 

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  • Solutions you can count on in the chemicals industry PDF : 3.1 MB
  • A world of service

    Your full-service provider

    PDF : 1.5 MB
  • Metris addIQ control systems

    Intelligence for machine and process control

    PDF : 1.3 MB
  • Fluidized bed drying and cooling for the soda ash industry PDF : 1 MB
  • Fluidized bed drying and cooling for technical salts and minerals PDF : 1 MB
  • ANDRITZ thickening and clarification systems PDF : 2.7 MB
  • The key to efficient zero-liquid discharge (ZLD) PDF : 1 MB
  • Industrial processing redefined

    ANDRITZ decanter centrifuges A

    PDF : 4.4 MB
  • Decanter centrifuge A4-3 for dewatering salt slurry at a power plant in Baotou City, China PDF : 249 KB
  • Brochure Lines & Processes - the complete compilation PDF : 5.7 MB
  • ANDRITZ Nonwoven global presentation PDF : 5.4 MB

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