3M, through its New Ventures Business, has invested in Lixivia, a Chile-based company that 3M has been working with on an engineering process to increase recuperation of copper sulfurate above levels reached through standard industry applications. Terms of the transaction were not disclosed. Stefan Gabriel, president, 3M New Ventures, said: “We believe that Lixivia’s innovative technology addresses core issues of mining companies today. This company has the potential to significantly increase miners’ diminished productivity and recover more copper sulfurate, which…