
Recycling and production of the specialty metals tantalum, rhenium, hafnium, niobium, gallium, germanium and zirconium from scrap

Buss & Buss Spezialmetalle GmbH
SagardNew on Amplifa
About Buss & Buss Spezialmetalle
Buss & Buss Spezialmetalle GmbH, based in Sagard on Rügen, has specialized for over 25 years in the recycling of metals and special materials, in particular refractory metals such as tantalum, rhenium and hafnium as well as niobium, gallium, germanium, zirconium and indium. The company implements the entire value chain – from the worldwide purchasing and disposal of pure and contaminated scrap, powders, sludges, turnings, crusts, furnace condensates and slags to finished pure tantalum in 99.9 % purity. The scrap is mechanically, thermally and chemically processed and converted into high-quality metals and their compounds. The company adapts chemical and physical product properties such as particle size, surface structure, grain size and consistency to customer requirements. The products are supplied, among others, to medical technology, microelectronics, mechanical engineering and aircraft manufacturing. The quality management for the processing and production of rhenium, hafnium and tantalum scrap as well as their production is certified to ISO 9001:2015.
- Site
- Sagard
- Processes
- Tantalum recycling (recycling of tantalum scrap), Niobium recycling (recycling of niobium scrap), Rhenium recycling (recycling of rhenium scrap), Hafnium recycling (recycling of hafnium scrap), Gallium recycling (recycling of gallium scrap), Germanium recycling (recycling of germanium), Zirconium recycling (purchasing and recycling of zirconium scrap), Production of rhenium and hafnium through recycling (certified area)
- Materials
- Tantalum, Niobium, Rhenium, Hafnium, Gallium, Germanium, Zirconium, Indium
- Certificates
- ISO 9001:2015, ISO 9001
- Industries
- Medical technology, Microelectronics/electronics, Mechanical engineering, Aerospace, Aerospace/aircraft engineering
- 01
Worldwide purchasing of metal scrap
- 02
Mechanical, thermal and chemical processing
- 03
Recycling and production of tantalum, rhenium and hafnium
- 04
Customer-specific adaptation of product properties
- 05
Sale of the pure specialty metals
Materials & Processes
Tantalum (Ta-73)
Recycling of tantalum scrap and production of pure tantalum (99.9 %) as sheets, ingots, powders and granulates, among other things for medical technology, microelectronics and aerospace.
Rhenium (Re-75)
Recycling of rhenium scrap, e.g. rhenium-containing airfoils from superalloys and tungsten-rhenium waste.
Hafnium (Hf-72)
Recycling of hafnium scrap, e.g. hafnium moly heads, in the certified area.
Niobium (Nb-41)
Recycling of contaminated niobium turnings or turnings mixed with other metals.
Gallium (Ga-31)
Recycling of off-grade gallium and gallium-containing scrap.
Germanium (Ge-32)
Recycling of germanium-containing filter cakes.
Zirconium (Zr-40)
Purchasing and recycling of zirconium scrap, e.g. decommissioned zirconium heat exchangers.
Indium
Purchasing and recycling of indium scrap.
Location

Sagard
DEHeadquarters, production and recycling (processing and production of tantalum, rhenium and hafnium)
- Materials
- Tantalum, rhenium, hafnium, niobium, gallium, germanium, zirconium, indium
Products

Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Tantalum recycling (recycling of tantalum scrap)Other | – | – | – | – | Tantalum |
| Niobium recycling (recycling of niobium scrap)Other | – | – | – | – | Niobium |
| Rhenium recycling (recycling of rhenium scrap)Other | – | – | – | – | Rhenium |
| Hafnium recycling (recycling of hafnium scrap)Other | – | – | – | – | Hafnium |
| Gallium recycling (recycling of gallium scrap)Other | – | – | – | – | Gallium |
| Germanium recycling (recycling of germanium)Other | – | – | – | – | Germanium |
| Zirconium recycling (purchasing and recycling of zirconium scrap)Other | – | – | – | – | Zirconium |
| Other | – | – | – | – | Tantalum, Niobium, Rhenium, Hafnium, Gallium, Germanium, Zirconium, Indium, Tungsten-rhenium waste |
| Other | – | – | – | – | Tantalum |
| Production of rhenium and hafnium through recycling (certified area)Other | – | – | – | – | Rhenium, Hafnium |
| Engineering | – | – | – | – | Tantalum, Niobium, Rhenium, Hafnium, Gallium, Germanium, Zirconium, Indium |
Additional services
Quality
The certified quality management system according to ISO 9001:2015 (DEKRA) ensures the integrity of the control chain, the traceability of the materials used in the end product, and the consistent quality of the products. The same procedures and control mechanisms are applied to niobium, zirconium, gallium and germanium.
| Evidence | Sagard |
|---|---|
| ISO 9001 |
History
Founding of the company; specialized in the recycling of metals and special materials for over 25 years
- 2024
Recertification to ISO 9001:2015 by DEKRA (no. 311061063/6, valid until 24.01.2027)