{
  "$type": "site.standard.document",
  "description": "To provide a lithium recovery method which is capable of efficiently recovering lithium without containing impurities, such as phosphorus and fluorine. In the present invention, an alkali is added to a discharge liquid and/or a cleaning liquid containing lithium discharged in a process of…",
  "path": "/patents/966515",
  "publishedAt": "2014-12-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C22B26/12",
    "SUMITOMO METAL MINING CO [JP]"
  ],
  "textContent": "To provide a lithium recovery method which is capable of efficiently recovering lithium without containing impurities, such as phosphorus and fluorine. In the present invention, an alkali is added to a discharge liquid and/or a cleaning liquid containing lithium discharged in a process of recovering valuable metals from a lithium ion battery, an acidic solvent extractant is caused to be in contact with the discharge liquid and/or the cleaning liquid under a condition of pH 9 or less and a temperature of 0 to 25°C and lithium ions are extracted, and the acidic solvent extractant having extracted the lithium ions is caused to be in contact with an acid solution of pH 3 or less and the lithium ions are stripped.",
  "title": "LITHIUM RECOVERY METHOD"
}