Conserving resources and our environmental responsibility: recycling at CERATIZIT
By deliberately conserving limited primary resources, we aim to significantly increase the proportion of recovered materials using carbide recycling. What's more, by recycling secondary materials CERATIZIT is limiting the damage caused by intensive mining, such as air, water and soil pollution, as well as the use of large amounts of energy.
Social and environmental responsibility by minimising energy consumption
The objective of the CERATIZIT Group's supply policy is also to minimise dependencies on individual regions and suppliers, and to use raw materials from conflict-free and sustainable sources. Over 80% of the primary production of tungsten takes place in the People's Republic of China and over 60% of cobalt is mined in the Democratic Republic of Congo.
CERATIZIT only enters into business relationships with members of the TI-CMC, who are considered conflict-free tungsten manufacturers or are in the process of being verified. CERATIZIT is a founding member of the TI-CMC (Tungsten Industry Conflict Minerals Council) working group, which developed a standardised approach to enable it to check tungsten manufacturers' compliance with the guidelines. With the support of the TI-CMC we campaign for the conflict-free procurement of tungsten and are committed to upholding the TI-CMC guidelines. Further information can be found here: www.ti-cmc.org.
Benefits for you: we complete the cycle, from the secondary raw material to the finished product
Not only externally, but also in its internal processes the CERATIZIT Group steadily optimises the yield and prevents secondary raw materials from accumulating. The regrinding service we offer our customers also makes a major contribution to sustainability.
Our repurchase price for carbides is always based on the current market price. We organise the entire process for you and also provide free, quantity-specific collection containers and transport solutions.
Certified recycling procedures – high-quality carbide grades
The CERATIZIT Group has developed certified procedures in accordance with ISO 9001 and ISO 14001, which involve converting carbide products into reusable powder after use. The aim is to fully recycle used carbide using as little energy as possible. There are two different processes for returning the end products to their constituent materials:
▲ The thermal zinc process (for high carbide content with very low use of chemicals)
▲ The chemical process (for powders or low carbide content with very low energy consumption)
Did you know what's in your worn-out product?
Your carbide part contains a high proportion of the sought-after materials cobalt (Co) and tungsten (W). Depending on the hardness of the carbide, the tungsten content is between 65 % and 90 %, that of cobalt up to 25 %. Cobalt is – among other things - also needed for the production of lithium-ion batteries, and is one of the most sought-after materials due to the increasing e-mobility.
The primary extraction of cobalt and tungsten through ore is expensive: to obtain one tonne of tungsten, 250 tonnes of ore must be mined and processed. Recycling of used carbide has a much better material yield as well as a better environmental balance: In the manufacturing process using carbide recycling, 40% of the CO2 emissions (taking into account chemicals etc.) and 75% of the primary energy used can be saved compared to manufacturing with primary raw materials.
- Which secondary raw materials can I recycle via this route?
- What are hard metals and how do I recognise them?
- How do I assign my secondary raw materials to the right types?
- How do I put together my secondary raw materials for dispatch or collection in a sensible way?
- Who is my recycling partner?
- How is the pricing determined?
The focus is on hard metals in all forms. As a partner in the purchase and sale of secondary raw materials, our cooperation partner Stadler Metalle also offers you a complete service for all metals and alloys.
Carbide is a composite material consisting of 85-95% tungsten carbide (WC) as the hard phase and 5-15% cobalt (Co) as the so-called matrix, but can also contain nickel as a binder. Carbide can be recognised by its high density of 13-16 g/cm3, which is twice as high as that of steel.
We distinguish six types of secondary raw materials: carbide drills and milling cutters (round); carbide indexable inserts (square); carbide mixed (lumpy); carbide wear parts; carbide powder; tungsten and tungsten alloys; other metallic secondary raw materials. In the enclosed information you will find more detailed classifications.
Further description on secondary raw materials
- Carbide drills and cutters (round): thread milling cutters, taps, drills, milling cutters, blanks, print drills, reamers, countersinks
- Carbide inserts without cermets (angular): Inserts, indexable inserts, PCD-tipped inserts
- Carbide mixed (piece by piece): wear parts, planer knives, wood knives, circular saw blades, balls, dies, profile knives, punching tools, gravers, centering points, drawing dies, cold impact dies, pressing tools, road scrapers, forming tools, rolling rings, bushings, shaped parts, glass cutting wheels, paper cutting knives
- soft scrap: sludge, dust, chips, tungsten carbide sweeping waste, unsintered tungsten carbide, press breakage, tungsten carbide green blanks
- Tungsten and tungsten alloys: tungsten powder, tungsten components, heavy metal, tungsten copper (WCu), tungsten nickel (WNi), densimet, densalloy
- Other metallic secondary raw materials: nickel alloys, cobalt alloys, titanium alloys, ferro alloys, pure metals, stainless steel, HSS, tool steel
If the batches are available separately according to the above mentioned types, please pack them separately. Several batches can be put separately into one transport container. Special measures are necessary for powders and sludges. We will be pleased to advise you on this.
Existing customers of the CERATIZIT group will receive green shipping boxes for hard scrap and return labels for quantities where this makes sense. The invoicing is done via the customer account. New customers, larger quantities of hard scrap, other types of hard scrap and other metals are handled by Stadler Metalle as cooperation partner. Recycling is a matter of trust. We guarantee professional disposal, fair prices and trustworthy handling.
Depending on who your recycling partner is (see above), you will either be contacted directly by CERATIZIT within one working day or Stadler Metalle in Türkheim/Germany, as an affiliated partner company and certified waste disposal specialist, will also contact you immediately.
The total price depends on the quantity, collection location, type and current raw material quotations. While the price for hard metal scrap is easy to calculate, soft scrap in particular, but also other metals are subject to strong fluctuations in composition, so that exact pricing is only possible after consultation.