they often use lumber that has been pressure-treated with preservatives. While this does indeed help the wood last longer, the chemicals will gradually leach out into the ground, harming organisms ...

FPX Nickel has released the results of pressure leaching testwork on nickel concentrates from its 245-sq.-km Decar nickel project located in central British Columbia. Based on nickel recoveries in ...

JAKARTA, March 18 (Reuters) - Nickel miner PT Vale Indonesia (INCO.JK), opens new tab is exploring a potential investment in a high-pressure acid leaching plant in Sulawesi island, with an ...

JAKARTA, Sept 14 (Reuters) - Indonesia's Anugrah Neo Energy Materials and China's Gotion Indonesia Materials have agreed to build a high-pressure acid leaching (HPAL) plant to produce materials ...

Nickel miner PT Vale Indonesia is exploring a potential investment in a high-pressure acid leaching plant in Sulawesi island, with an estimated cost of 30 trillion rupiah ($1.91-billion), its ...

acid consumption and to simulate the underground hydraulic pressure in an in-situ leaching process over a 120 day leach period. Calculated total copper grades ranged from 0.35% to 2.03% and ...