Muldenhütten Recycling und Umwelttechnik GmbH (MRU)

Muldenhütten Recycling und Umwelttechnik GmbH (MRU) is the third largest lead smelter in Germany. The smelter was founded in the 14th century, converted into a smelter for secondary materials in 1969, and then fully modernised between 1993 and 1994.

MRU is continuously expanding and improving its facility to maintain the highest operational standards. The Engitec process, which was acclaimed by the American Environment Protection Agency (EPA), as the best available technology and most environmentally friendly, is implemented for the separation of batteries into their components.

Today MRU employs 155 people and recycles up to 75,000 tonnes of battery scraps to produce around 55,000 tonnes of lead and lead alloys annually, including tin and antimony master alloys. The lead is marketed under the brand name F and listed on the LME.

In 2012, MRU started polypropylene production and is increasing its capacity up to 25,000 tonnes per year until the end of 2020. Marketed as Seculene® PP, the polypropylene produced by MRU is highly valued in many industries with specific plastic requirements, especially the automotive sector.

MRU is unique among lead smelters worldwide thanks to its integrated hazardous waste incinerator, disposing of 18,000 tonnes of waste annually. This enables the recovery of non-recyclable plastic wastes produced during the pre-treatment of accumulators plus other industry waste.

Alongside its secondary lead, polypropylene compounds, hazardous waste disposal and recycling services, MRU also produces 5,000 tonnes of sodium sulphate per year which is sold to the glass and detergent industry.