A new NPK pilot plant at the Innovation and R&D Center in Porsgrunn has been successfully in operation since this spring. Yara’s Innovation and R&D department has been quite busy lately. In an effort to continuously improve Yara’s operations and processes, Yara’s research center in Porsgrunn, Norway, has successfully initiated a new NPK pilot plant. It’s designed to improve operations significantly while providing more flexibility. "The NPK pilot has been in continuous operation since start-up," Sten Bjørneboe, responsible for Yara’s plant operations, says. The new facility is actually a kind of "mini-plant" for NPK production, based upon the so-called nitrophosphate process that Yara utilizes to produce finished fertilizers in its facilities at Porsgrunn and further north in Glomfjord…