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Bachiller Drives Battery Recycling with Its Vacuum Drying Technology

Battery Recycling with Vacuum Drying Technology

In a context driven by the exponential growth of electric vehicles and the transition towards a more sustainable economy, battery recycling has become one of the key challenges for the industry. At Bachiller, we have spent years developing advanced technological solutions designed to support this process in an efficient, safe, and sustainable way.

Our range of vacuum dryers has proven to be an optimal solution for processing materials generated during battery recycling operations, particularly in critical stages where solvents, moisture, and volatile compounds must be removed under controlled conditions. Thanks to vacuum technology, these drying processes can be carried out safely while allowing the precise separation of solids and solvents for reuse, improving overall process efficiency.

Bachiller has gained solid experience in this sector through the extensive testing activities carried out at our Test Center. Over the years, we have successfully worked on several key applications related to battery recycling, validating our technology under real operating conditions.

One of the most relevant applications has been the recycling of black mass, a complex material recovered from end-of-life lithium-ion batteries consisting of a concentrated mixture of metal compounds — mainly oxides — containing lithium, cobalt, nickel, and manganese, together with graphite and other residual cell components. Our vacuum drying technology has demonstrated excellent performance in the safe and efficient treatment of these sensitive materials.

We have also conducted trials focused on the recycling of NMC cathode production scrap, helping manufacturers recover valuable raw materials generated during battery manufacturing processes.

In addition, Bachiller has participated in projects involving the recycling of pre-shredded batteries, where the treatment of heterogeneous and potentially hazardous materials requires robust, reliable, and highly controlled process solutions.

The trials carried out at our Test Center have confirmed the effectiveness of our vacuum drying systems in the treatment of complex materials generated from battery recycling operations. The results obtained demonstrate not only high process efficiency, but also safe operation and excellent adaptability to the demanding requirements of this industry.

Beyond process performance, vacuum drying technology also plays an important role in sustainability. By improving solvent recovery, minimizing emissions, and facilitating the recovery of valuable materials, vacuum dryers contribute directly to reducing the environmental impact of battery recycling operations. This fully aligns with the growing global demand for cleaner and more circular industrial processes.

At Bachiller, we are proud to contribute to the development of more sustainable industrial solutions and to support our customers in optimizing their recycling processes through innovative and reliable technologies.

If you would like to learn more about our solutions for battery recycling applications, our team will be pleased to meet you at the trade fair and discuss your project requirements in detail. You can also contact us through our website: https://bachiller.com/en/contact/

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2,500L Vacuum Dryer for Leading National Chemical Company

Vertical ribbon vacuum dryer

At Bachiller, we have completed the manufacturing of a new SUPRADRY SDV-025 vertical vacuum dryer, which will soon be delivered to a well-known national company in the chemical industry.

This compact unit, with a useful volume of 2,500 liters and fully built in AISI 316L, has been specifically designed for drying high-density organic salts. Due to the product’s characteristics, the equipment required a high-torque mechanical design to ensure optimal agitator performance.

Before proceeding with the design and manufacturing, pilot trials were conducted at our Test Center in Parets del Vallés, where it was confirmed that the vertical dryer was the most efficient solution from both a thermal and mechanical perspective. These trials also allowed us to accurately scale the equipment based on the customer’s actual production needs.

This project once again highlights the importance of validating each process under real conditions before building the final equipment, ensuring maximum efficiency and reliability.

If you’re considering a new drying solution, contact us or book a test at our Test Center: https://bachiller.com/en/test-center-laboratory/

 

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We have incorporated a new vacuum dryer into our Test Center

Horizontal vacuum paddle dryer and reactor

At Bachiller, we are finalizing the manufacturing of the new TURBODRY MHT‑200RS vacuum dryer, which will soon be installed at our Test Center in Parets del Vallès, Barcelona.

This horizontal paddle reactor-dryer is designed for demanding vacuum drying and reaction processes, especially with pseudo-plastic products and high-viscosity materials.

Its construction features a fully heated body, shaft, and paddles, ensuring optimal heat transfer and precise thermal control, even under complex processing conditions.

The unit can be configured with two paddle types, depending on the application:

  • Ploughshare paddles, for intensive mixing with high shear and turbulence.
  • Flat paddles, ideal for gentle mixing where product morphology must be preserved.

📌 Key specifications:

  • Useful volume: 147 L
  • Material: AISI 904L
  • Operating pressure: -1 / +15 bar(g)
  • Operating temperature: up to 220 °C
  • Design code: ASME VIII Div. 1
  • ATEX classification: Internal Zone 0/20 – External Zone 1/21

Want to see it in action? We’ll be showcasing it at POWTECH 2025, from September 23 to 25 at Messe Frankfurt, with live demos and our team available to answer all your questions.

🔗 Contact us to book a visit to the Test Center: https://bachiller.com/en/test-center-laboratory/

 

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2,000-Liter Vertical Vacuum Dryer for an Asian Mining Company

SUPRADRY

We are pleased to announce the completion of a 2,000-liter SUPRADRY SDV vertical vacuum dryer for an Asian mining company specializing in precious metals.

The installation includes several key components that ensure optimal performance. These include the vacuum dryer, a power and control cabinet with an intuitive touchscreen panel, a heating and cooling skid for precise thermal condition control, an electric chiller, and a vacuum and condensate recovery unit.

This project highlights our ability to deliver advanced, customized solutions that meet the specific needs of our clients in the precious metals industry.

If you would like to learn more about our SUPRADRY or explore how our solutions can benefit your company, feel free to contact us or visit our website.

We are here to help you achieve new levels of efficiency and quality in your processes.

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Two Paddle Vacuum Dryers for a National Pharmaceutical Company

SANIDRY

We are pleased to announce the successful fabrication of two paddle vacuum dryers with a sanitary design for a renowned national pharmaceutical company.

These two SANIDRY SHV-2000 dryers each have a capacity of 2,000 liters and are constructed from AISI-316-L stainless steel.

The design process for these dryers focused on ensuring maximum efficiency and safety in drying injectable antibiotics, an extremely sensitive product that requires strictly sterile conditions. To meet these requirements, the dryers are equipped with advanced technologies that ensure operation in a controlled and sterile environment. Each component and manufacturing process has been carefully selected and monitored to ensure that the dryers comply with the strictest regulations in the pharmaceutical sector.

Our client’s satisfaction with the new equipment is a testament to our commitment to excellence. The dryers not only meet their expectations in terms of capacity and functionality but also offer additional advantages such as greater energy efficiency, ease of cleaning and maintenance, and an ergonomic design that facilitates use.

We thank our team of engineers and technicians for their dedication and effort in this project, as well as our client for trusting in our capabilities. We are eager to see the positive impacts these dryers will have on their production.

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Biconical vacuum dryer for a Spanish chemical multinational

BICUUM

We are pleased to announce that we have recently manufactured a double cone vacuum dryer with rotary drum for a major Spanish chemical multinational.

This BICUUM dryer, with a capacity of 600 liters in AISI-304-L, is designed to operate at high temperatures required by the product process, using a chain drive to ensure its efficiency and durability.

In addition to the vacuum dryer, we have also provided a vacuum and solvent recovery unit to complement our client’s installation.

We are proud to continue offering innovative and quality solutions in the chemical sector.

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Set of two vertical vacuum dryers for a British company

We start the year with great enthusiasm and dedication to our work!

We have just delivered a set of two vertical vacuum dryers Supradry SDV-010 of 1,000 liters in AISI-304-L stainless steel to a large British company with more than 100 years of history dedicated to the chemical sector.

In this project, our client required dryers that were very careful with their product, which in this case were polymers, and that were able to reduce the humidity of this from 0.2% to 0.01%.

To achieve a reliable industrial process, we previously tested the process in our Test Center. Once the necessary adjustments were made and the desired results were obtained, we scaled the equipment to achieve the performance required by our client.

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Skid-mounted vacuum drying unit for battery components

Turnkey installation of vacuum drying for battery components

We have just supplied a skid-mounted unit for the vacuum drying of monohydrated lithium hydroxide crystals for a North American chemical multinational.

The “plug-and-play” unit is composed of a 30 liter BICUUM MBC-S rotary vacuum dryer equipped with all the necessary peripheral equipment required for an eficient vacuum drying operation, with automated control System of the process through touch panel, vacuum and sovent recovery unit, thermal oil heating unit and chilled water generator. The equipment is installed on a frame with adjustable legs, with all necessary connection pipes, instruments and wiring, required for its correct operation.

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Supradry vacuum dryer for North American technological multinational

Supradry

We have manufactured a Supradry SDV-010 of 1,000 liters in C-276 for a North American multinational in the technology sector.

The equipment consists of a vertical ribbon vacuum dryer with cartridge filter, power panel and touch panel control, a vacuum skid and a solvent recovery unit.

In this project, the client required a vacuum dryer to be able to reduce the humidity of its thermosensitive product from 0.1% to 0.01%.

To achieve an industrial process with reliable results, we previously simulated the client’s process in its Test Center. Once the necessary adjustments were made and the expected results were obtained, the equipment was scaled with the appropriate technology to a desired standard industrial size.

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3 vertical vacuum dryers for French chemical multinational

SUPRADRY SDV

Bachiller has manufactured a set of three SUPRADRY SDV vacuum dryers of 2,000 liters in AISI-316L, for a French chemical multinational, present in more than 20 countries around the world.

In this project, the client required a vacuum dryer that could separate some salts from a solvent used in their process, and thus be able to reuse these salts in future production batches to increase significantly the performance of their production line and reduce their operating costs.

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