Mobile Dosers Services Tek Lab History

Aluminum Recycling Foundry

NaHCO3
Active Carbon / Lignite

Technical Sodium Bicarbonate and Activated Carbon/Lignite Coke for Aluminum Recycling Foundry

In the aluminum recycling process, high-temperature furnaces are often used to melt the metal recovered from waste. During this melting phase, various types of harmful emissions are generated, including gases such as SOx (sulfur oxides), hydrochloric acid (HCl), hydrofluoric acid (HF), as well as fumes from other heavy metals, which can have a negative impact on the environment if not properly controlled. To mitigate emissions, an advanced flue gas treatment system can be adopted, employing two specific agents: technical sodium bicarbonate and activated carbon or lignite coke.

Solution with Technical Grade Sodium Bicarbonate plus Active Carbon or Lignite Coke

This solution features a sophisticated system for filtering emissions produced during aluminum recovery. The system includes a mill for grinding technical sodium bicarbonate, which is dispensed to neutralize the acids produced during smelting, and a doser for activated carbon or lignite coke, which captures heavy metal particles and other harmful substances.

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.

Metaltek Mills Specialized for Technical Grade Sodium Bicarbonate Metaltek Dosers Specialized for Active Carbon or Lignite Coke

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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 sodium bicarbonate, activated 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 Aluminum Recycling Plants

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Flue Gas Cleaning with Technical Grade Sodium Bicarbonate and Active Carbon or Lignite Coke

FAQ

What are common pollutants in the aluminum recovery process?

In addition to sulfur oxides (SOx), Hydrochloric Acid (HCl), and Hydrofluoric Acid (HF), the aluminum melting process can release vapors of heavy metals like lead and cadmium, particularly present in alloys and impurities of the initial material. These elements require careful management to prevent their release into the environment.

Why are technical grade sodium bicarbonate and activated carbon/lignite coke used in the aluminum recovery process?

During the aluminum melting process, various pollutants such as sulfur oxides (SOx), Hydrochloric Acid (HCl), and Hydrofluoric Acid (HF) can be released, which are harmful to the environment. Technical grade sodium bicarbonate neutralizes the acids present in the melting fumes, transforming them into less harmful compounds, while activated carbon/lignite coke is effective in adsorbing heavy metals and other volatile pollutants. This combination provides an effective and versatile solution for fume treatment under different operating conditions.

What is the purpose of sodium bicarbonate in the aluminum recovery process?

In aluminum recovery, sodium bicarbonate chemically reacts with acidic compounds present in the fumes, such as sulfur oxide (SOx), Hydrochloric Acid (HCl), and Hydrofluoric Acid (HF), transforming them into non-hazardous salts like sodium sulfate. This not only helps to reduce the acidity of the gases but also helps to minimize the environmental impact of the melting operations.

What is the role of activated carbon and lignite coke in treating the fumes produced in aluminum recovery?

Activated carbon and lignite coke play a crucial role in the abatement of specific pollutants such as mercury and other heavy metals, which can be released during aluminum melting. Thanks to their adsorptive properties, activated carbon and lignite coke can effectively treat these pollutants.

What are the main distinctions between activated carbon and lignite coke in fume filtration?

In fume filtration systems, activated carbon and lignite coke play different roles due to their intrinsic properties. Activated carbon excels in the absorption of contaminants, offering superior performance due to its porous structure and high contact area, effective against a wide variety of organic compounds. Lignite coke is optimally used below 200°C, focusing on its ability to retain specific types of pollutants. This makes it an economically advantageous choice for situations with temperature limitations.

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