Metso Outotec awarded €150 million order for key technology to Boliden’s Green Zinc Odda project in Norway

Image from Metso Outotec.

Metso Outotec has been awarded a contract for the delivery of key technology to the Boliden Odda zinc smelter expansion in western Norway. Approximately ninety percent of the €150 million contract has been booked in Metals’ Q4/2021 orders received and the rest in Minerals’ Q4/2021 orders received.

With the expansion, Boliden Odda is planning to increase its annual production capacity of zinc metal from 200,000 to 350,000 tonnes. Several by-products will also be produced. The project is called Green Zinc Odda, and its energy consumption is based on fossil-free energy. Metso Outotec scope of delivery includes roasting and off-gas cleaning solutions and a sulphuric acid plant. Metso Outotec will also supply hydrometallurgical equipment and technology for calcine leaching, solid liquid separation, solution purification, as well as process and plant engineering and site services. Metso Outotec deliveries will take place in 2022-2024.

“We are very happy for being trusted with this order. The Green Zinc Odda project paves way for more sustainable zinc production and is yet another important milestone in the many years of collaboration between Boliden and Metso Outotec,” says Jari Ålgars, President, Metals business area at Metso Outotec.

Metso Outotec’s industry-leading zinc processing technologies consist of several proprietary Planet Positive solutions. These sustainable and cost-efficient technologies and services enable efficient zinc and by-product recovery from a wide range of primary zinc raw material. In the roasting process, even electrical power is produced as a by-product.


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