Outotec launches new partial roasting process
- Publishing Date
- 04 Jan 2012 5:11pm GMT
- Author
- Mining Magazine
Processing
Outotec has developed a two-stage partial roasting process to remove impurities such as arsenic, antimony and carbon from copper and gold concentrates. The new process is a pre-treatment to actual extraction processes.
Outotec has also established a new continuous pilot plant at the company’s research centre in Frankfurt, Germany to test customers' concentrates with the new process. During the tests it is possible to collect reliable and necessary data for industrial process scale-up.
Pertti Korhonen, CEO of Outotec, said: "This new process complements our portfolio of sustainable technologies for the minerals and metals industry. With Outotec roasting technology the harmful elements can be removed in environmentally sustainable way. We are currently building the world's largest arsenic-removing roasting furnace at Codelco's Mina Ministro Hales mine in Chile, where the new partial roasting process will be used. More than 90% of the arsenic contained in the concentrate can be removed to produce clean copper calcine."
Outotec has also established a new continuous pilot plant at the company’s research centre in Frankfurt, Germany to test customers' concentrates with the new process. During the tests it is possible to collect reliable and necessary data for industrial process scale-up.
Pertti Korhonen, CEO of Outotec, said: "This new process complements our portfolio of sustainable technologies for the minerals and metals industry. With Outotec roasting technology the harmful elements can be removed in environmentally sustainable way. We are currently building the world's largest arsenic-removing roasting furnace at Codelco's Mina Ministro Hales mine in Chile, where the new partial roasting process will be used. More than 90% of the arsenic contained in the concentrate can be removed to produce clean copper calcine."
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