Solutions · Process Liquid Storage
Mother liquor is the solution left after crystallization – often saturated, sometimes corrosive, and ready to crystallize again. PW Silo Systems designs PW TankLine tanks in aluminum and stainless steel for mother liquor and other process liquids with you – material and design are defined with you for your product.
Mother Liquor Storage at a Glance
A mother liquor tank stores the solution that remains after a product has crystallized – in salt, sugar, chemical, or pharmaceutical production. The mother liquor is often returned to the process, recycled, or treated, so it needs a reliable buffer between process steps.
Mother liquor is often saturated. Crystals can form, settle, and build deposits, and depending on the product, the liquid can attack the tank material. That is why the tank material, the design, and the outlet are defined together with you for your product and your site.
Why Mother Liquor Is Demanding
Crystallization, corrosion, and solids decide whether a mother liquor tank runs reliably.
Saturated mother liquor can crystallize again in the tank – on walls, at the outlet, and in pipes.
Depending on the product, its concentration, and your process, mother liquor can attack the tank material.
Fine crystals and solids settle at the bottom and can block the outlet over time.
Mother liquor is often returned to the process. Flaking coating or rust must not end up in it.
Crystallization produces two products: the crystals and the mother liquor. Both need storage.
Mother liquors from different products or process steps must not be mixed by accident.
Silo Materials
We build tanks exclusively in aluminum and stainless steel. Carbon steel is not an option for us: its coating is the only protection against corrosion – and damaged coating is quickly attacked by aggressive liquids.
Which of our two materials and which design fit your mother liquor tank depends on the product, its concentration and temperature, your process, and your site. We define the material and the design with you.
Your Tank and Silo System
Liquid and solid products from your crystallization process are stored with components that are designed to work together. That means fewer interfaces for your team.
Liquids
Tanks in aluminum and stainless steel for liquid products and suspensions.
Learn moreStorage
Concentric mass-flow discharge without asymmetric flow zones – as standard, site-assembled, indoor, or multi-compartment silos.
Learn moreMonitoring
Level measurement for reliable monitoring of the silo content – so you know when to reorder.
Learn moreProcess Liquids
Products marked “Tested in our lab” are on our list of bulk materials. The others we review with you based on your material data before designing the silo.
Tested in our lab
Mother liquor, crystallization liquor, residual liquor
Mother liquor is on our list of products tested in our lab. Material and design for your specific liquid we define with you.
Tested in our lab
Sugar solution, syrup
Sugar solution is on our tested list. Storage conditions for your site we clarify with you.
Tested in our lab
Milk of lime, lime slurry
Milk of lime is on our tested list. As a suspension, its solids content is considered in tank and outlet design.
Tested in our lab
Thick stillage, distillery residue
Thick stillage is on our tested list. Tank and outlet are designed with you for its solids content.
Review with us
Brine, salt solution
Brine is corrosive. We review your product data with you and define material and design together.
Review with us
Softened water, process water
Process water tanks are designed with you for your volumes and your site.
Also tested in our lab:
Send us your material data and we will review the right solution with you:
Product Check
Type in your product or any other bulk material or liquid to see whether it has already been tested in our lab. The list covers 287 products.
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Service in the U.S.
With more than 40 years of experience in silo and tank engineering, we support your mother liquor tank project from the first design discussion to commissioning. We deliver to every U.S. state and install with our own qualified personnel.
FAQ
Answers to the questions plant managers, engineers, and buyers ask most often about storing mother liquor and other process liquids in tanks.
Process liquids and suspensions are stored in our PW TankLine tanks. These products are on our list of products tested in our lab:
Brine, process water, and other liquids we review with you based on your product data.
Mother liquor is the solution that remains after a product has crystallized out of it. It is often saturated and is returned to the process, recycled, or treated.
Tank design, outlet, and connections are defined with you for your product. Storage conditions for your site we clarify with you.
We build tanks exclusively in aluminum and stainless steel – never in coated carbon steel. Which material and which design fit depends on the product, its concentration and temperature, your process, and your site. We define them with you based on your product data.
Yes. We design PW StoreLine silos for the crystalline product and PW TankLine tanks for the mother liquor – from one source and with fewer interfaces for your team.
The right size depends on your process volumes, how the liquid is returned or removed, and the space available at your site. We size the tank with you.
Yes. We deliver to every U.S. state and support your project with transport, field assembly, installation and supervision, and relocation of existing systems.
Very likely. Send us your product details – concentration, temperature, solids content, and how the tank is filled and emptied – and we will review the right solution with you.
Tell us about your liquid, the required volume, how the tank is filled and emptied, and your site conditions. Based on this, we work out the material, tank type, and configuration with you and send you a detailed quote.
