| 摘要 |
The present invention relates to a device for recovering precious metals and byproducts from ore such as nickel ore or manganese nodules and, more specifically, to a device for recovering precious metals and byproducts from a nickel smelting process including a drying and sintering device, an ore pyrolysis device, an ore reduction device, a leaching reaction device, a precipitation reaction device, a precious metal recovering device, and a pyrolysis agent recovering device. Ammonia obtained by thermal decomposition of the nickel ore as the device for recovering the precious metals and byproducts from the nickel smelting process is used can be used as a PH adjusting agent in a leaching step and a neutralizing agent in a precipitation step. Economic efficiency and process efficiency can be improved when the precious metals and byproducts are recovered from the nickel smelting process as ammonium salt such as ammonium sulfate is recovered, and the total amount can be reused as a pyrolysis agent. |
