Yara Porsgrunn uses bi-products from RHI Porsgrunn as raw materials

“We are experiencing increased interest in our magnesium-containing bi-products,” says Vidar Lid, Supply Chain and Sales Manager at RHI Porsgrunn. Yara Porsgrunn is the largest local customer.

The RHI factory at Herøya Industrial Park in Porsgrunn produces more magnesium-containing products (MgO) than can be used in the factory’s production of its main product, fused magnesia.

“We have an excess production of what for us are bi-products. These are magnesium-containing products that are rich in magnesium, with a variety of physical properties that are interesting to other manufacturers,” explains Vidar Lid, Sales Manager for RHI’s bi-products.

Major local customer

Yara Porsgrunn is RHI’s largest local customer that uses magnesium oxide in some of its fertilizer products. Magnesium oxide is used in fertilizer production as an important plant nutrient.

“RHI Normag’s products are of a high quality, and the company provides a good service to Yara Porsgrunn,” Yara writes in a comment. “And of course it is certainly no disadvantage that RHI and Yara are close neighbours, both situated at Herøya Industrial Park. However, an overall assessment of price and quality will always be the deciding factor when choosing a supplier. We hope that RHI will continue to be an important supplier to Yara in the years ahead.”

A ‘win-win’ situation

Resources that RHI is unable to use gain new value.

Vidar Lid

Vidar Lid, Supply Chain and Sales Manager at RHI Porsgrunn. Photo: Siri Krohn-Fagervoll

“We are able to use our bi-products effectively, and other manufacturers obtain raw materials that they can use in their production processes,” explains Vidar Lid. This is a ‘win-win’ situation for industry and society, both economically and environmentally.

Significant interest

Lid explains that sales took off in 2015.

“We supplied as many as 50,000 tonnes of magnesium-containing products to customers in Norway, Sweden, Germany and Hungary.”

And enquiries regarding the magnesium products’ properties and areas of application are increasing.

“Just today I received two enquiries about the use of the products in soil improvement and watercourse liming,” says Lid.

Several areas of application

Magnesium oxide (MgO) from RHI is already used as a raw material in soil improvement and as a binding and bleaching agent in timber processing, and Lid sees several more areas of application for the future.

“We produce seven different magnesium-containing products of varying qualities. These are all registered with the Norwegian Food Safety Authority and are products with different properties suitable for various uses,” says Lid.

He is happy that the company’s problems surrounding waste products have now been cleared up. In February, the local newspapers TA and Varden reported that the police had dropped the environmental case against RHI and that charges regarding the illegal disposal of hazardous waste have been closed.

“We sold around 50,000 tonnes of bi-products last year, which will be used as valuable raw materials by other manufacturers. We are thereby making a significant contribution to the improved utilisation of resources, which will provide economic and environmental benefits in the long term,” concludes Vidar Lid.