Company profile

For more than 75 years, we have been processing the valuable raw material selenium at our site in Roethenbach an der Pegnitz. Depending on the application and customer requirements, we ensure the demanded quality level with consistent standards and provide the corresponding processing.

Our customers come from all over the world and represent industries such as glass, feed, solar, semiconductor, and optics, as well as pharmaceuticals, electroplating, steel, and fertilizers.

In more than 50 countries, we serve around 500 customers across 20 different industries with our portfolio of over 50 products.

We develop customized, tailor-made solutions upon request.

RETORTE continues to grow steadily and successfully meets the challenges of the global market.

Our customers benefit from high performance, competitive pricing, excellent delivery capabilities, and our commitment to providing services that go beyond the usual standards in every area.

We currently employ around 50 people at our site in Röthenbach an der Pegnitz and are among the leading companies in the field of selenium.

Our slogan reflects this focus: “Focused on Selenium.”

Our Focus on Technology and Development

Laminar Oxidation

RETORTE has developed the direct laminar oxidation of selenium using pure oxygen. This globally unique technology makes RETORTE a manufacturer with the highest environmental standards and first-class product quality. Several modern, computer-controlled oxidation plants enable the production of either selenium dioxide or selenous acid.

High-Purity Selenium Production

In the field of high-purity selenium, RETORTE possesses state-of-the-art equipment for fine purification, reduction, and alloying. Modern cleanroom technology and a vacuum drying cabinet ensure the highest quality standards during drying and packaging. The centerpiece of high-purity selenium production is the reduction reactor, where highly purified selenous acid is converted into powdered reduced selenium — the critical precursor for producing high-purity selenium.

Selenium Oxidation Plant

RETORTE’s selenium oxidation plant is an in-house development that has made the company a world leader in high-purity selenium and selenium chemicals. The plants are continuously refined and optimized, fully computer-controlled and monitored, and equipped with the latest software and control electronics.

Spray Drying

With the introduction of spray drying for sodium selenite in 1995, RETORTE significantly improved both product quality and working conditions. Compared to conventional ground materials, the product is low-dust and free from large particles. This offers a major advantage: more homogeneous mixing in feed products and enhanced safety for production staff in the feed industry.

Quality Control in Our Own Laboratory

All our products undergo continuous testing in our in-house laboratory. For example, we verify that the purity levels meet the specific requirements of each industry. As one of the few producers worldwide, we are able to manufacture high-purity selenium with a purity of 99.999 %.

Environment and Sustainability

We hold numerous certifications that demonstrate our responsible approach to resources, suppliers, employees, and the environment. Our raw materials are sourced only from countries that fully comply with environmental standards. Regular audits ensure full transparency across the entire supply and production chain, covering environmental regulations, occupational safety, and human rights compliance.