Bronze Recycling Foundry
NaHCO3
Carbone Attivo

Pre-ground SOLVAir® Sodium Bicarbonate and Active Carbon or Lignite Coke for Bronze Recycling Foundry

In the metallurgical sector, bronze recovery foundries play a crucial role in the recycling of non-ferrous metals. During the bronze smelting and refining process, polluting emissions are generated due to the combustion required for the process. The fumes emitted may contain harmful substances such as sulfur oxides (SOx), hydrochloric acid (HCl), hydrofluoric acid (HF), and heavy metals such as copper, tin, and lead. These pollutants not only negatively impact the environment but can also pose risks to human health. To ensure that emissions remain within the limits established by environmental regulations, advanced flue gas treatment methods are essential. An effective approach is the combined use of Solvay SOLVAir® pre-ground sodium bicarbonate and activated carbon or lignite coke.

Solution with Pre Ground SOLVAir® Sodium Bicarbonate plus Active Carbon or Lignite Coke

Solvay SOLVAir® pre-ground sodium bicarbonate plays a key role in neutralizing acidic substances in the flue gases, converting them into harmless salts. Furthermore, activated carbon and lignite coke, with their high adsorption capacity, are extremely effective at capturing heavy metals and other harmful particles present in the resulting gases from the smelting process. The process involves the controlled injection of these substances using two well-calibrated dosers to ensure accurate distribution of the materials. This technique guarantees a high degree of flue gas cleanliness, in compliance with current environmental regulations.

Design and Realization

MetalTek specializes in the design and manufacture of high-quality mills and feeders with top-quality components. Our equipment is available in various configurations, and upon request, we can design customized loading and injection solutions for every need.

Our Suppliers

Selected to grant Top Quality components

Metaltek Services: Assistance, Maintenance and Monitoring

Assistance, Maintenance and Monitoring Services on existing systems

Metaltek, with thirty years of experience in the sector, supplies cutting-edge systems for the purification of industrial fumes, designed to guarantee reliability, continuous efficiency and compliance with environmental regulations.

Thanks to our team of highly specialized consultants and designers, we create customized solutions that optimize the use of pre-ground sodium bicarbonate, active carbon and lignite coke, reducing operating costs and waste. We offer timely assistance, professional analyses, teams equipped to work at heights and in confined spaces, and a constantly stocked spare parts warehouse. The quality and robustness of our systems, combined with global technical support and our Tek Lab analysis service make them ideal for flue gas purification where precision, reliability, and service continuity are essential.

Tek Lab by Metaltek: the exclusive fixed and mobile analysis laboratory for monitoring, testing and innovation

Tek Lab: Analysis and Innovation Laboratory

Tek Lab by Metaltek is a leader in the analysis of industrial fumes and residues. A cutting-edge technology to detect and address issues with overdosing or problems related to excess acids, dioxins, or other harmful compounds. It offers both on-premises analysis and on-site monitoring and analysis with its mobile laboratory.

Quality Products and exclusive Metaltek Services: a benchmark, the state of the art of Bronze Recycling Plants

To Continue

Learn more about the technology behind our mills and dosers and discover how we can support your business with tangible results.

All Technical Details:
Request detailed Information
Contact the Design department
Commercial Insights:
one of our sales consultant is at Your disposal
Contact Us Now!
Metaltek Services
Assistance, Maintenance, Consulting
Learn More
Tek Lab: laboratories
mobile and on site
All the Exclusive Services

Our Clients


They trusted us:

Tek Lab by Metaltek: the exclusive fixed and mobile analysis laboratory for monitoring, testing and innovation

Flue Gas Cleaning with Pre-ground Solvay SOLVAir® Sodium Bicarbonate and Active Carbon or Lignite Coke

FAQ

While bronze melting releases fewer particulates, the fumes contain SOx, HCl, HF, and heavy metals such as copper, tin, and lead, which require appropriate treatment to minimize environmental damage and safeguard health.
The fumes produced during the bronze melting process contain various pollutants such as SOx, HCl, HF, and heavy metals like copper, tin, and lead. Sodium bicarbonate reacts with acids, neutralizing them, while activated carbon and lignite coke adsorb metals and other hazardous substances, thus reducing harmful emissions and ensuring compliance with legal limits.
These alkaline compounds neutralize the acids present in the fumes, transforming them into stable and harmless salts such as NaCl and NaF, thereby reducing the hazardous nature of the emissions.
They act as adsorbents to eliminate heavy metals and volatile organic compounds, providing a large surface area for adsorption and ensuring effective fume treatment.
Although both are used for fume purification, activated carbon, with its higher porosity, is generally more effective against a wide range of contaminants. Lignite coke, being less expensive, is preferred for low-temperature processes.
Sodium Carbonate offers greater alkalinity, making it more effective against various acids, while Sodium Bicarbonate, by decomposing into CO2 and water, produces more active forms of Carbonate at lower temperatures, enhancing contact with acids.
Metaltek srl - Idustrial MIlls and Dosers Tek Lab - Flue Gas Cleaning Analysis
Metaltek Linkedin Profile
Indirizzo postale di Metaltek Postal Adress
Operational Headquarters

Via Diaz 73 Zinasco Nuovo (PV) 27030

Registered Office

Via Sant'Ennodio 1/A Pavia 27100

Metaltek Opening Hours
Opening Hours

Monday - Friday 8-12 e 13-17


© 2026 Copyright Metaltek S.r.l. All rights reserved | Privacy Policy | Cookie Policy | Terms of Use | VAT number 02611970183 | REA PV-287779
Link a Pyramid Web Agency. Realizzazione Siti, eCommerce, Web Marketing.