{
  "$type": "site.standard.document",
  "description": "The present invention provides a novel method capable of recovering Ni and Co as well as Cu from a battery waste containing Ni, Co, and Cu with a high recovery ratio, in which a leaching agent is suitable for reuse. The method for reproducing valuable metals according to the present disclosure…",
  "path": "/patents/1389779",
  "publishedAt": "2026-06-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/54",
    "Prime Planet Energy & Solutions, Inc."
  ],
  "textContent": "The present invention provides a novel method capable of recovering Ni and Co as well as Cu from a battery waste containing Ni, Co, and Cu with a high recovery ratio, in which a leaching agent is suitable for reuse. The method for reproducing valuable metals according to the present disclosure includes: a Cu leaching step of leaching Cu, using an ammonia water, from battery waste containing Ni, Co, and Cu into the ammonia water; and an Ni and Co leaching step of leaching Ni and Co, using an ammonia aqueous solution containing ammonia and at least one inorganic ammonium salt selected from a group consisting of ammonium sulfate and ammonium carbonate, from a solid residue obtained in the Cu leaching step into the ammonia aqueous solution.",
  "title": "METHOD FOR REPRODUCING VALUABLE METAL"
}