{
  "$type": "site.standard.document",
  "description": "The present invention relates to a method of treating a cleaning waste liquid which includes a pretreatment step of removing a portion of an organic solvent from a cleaning waste liquid containing a positive electrode active material, a binder, and the organic solvent; a first step of precipitating…",
  "path": "/patents/1435827",
  "publishedAt": "2026-07-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C02F1/04",
    "LG ENERGY SOLUTION LTD [KR]"
  ],
  "textContent": "The present invention relates to a method of treating a cleaning waste liquid which includes a pretreatment step of removing a portion of an organic solvent from a cleaning waste liquid containing a positive electrode active material, a binder, and the organic solvent; a first step of precipitating the binder by adding water to the cleaning waste liquid from which the portion of the organic solvent has been removed; a second step of removing the precipitated binder to obtain a first treatment solution containing the positive electrode active material, the water, and the organic solvent; a third step of separating the positive electrode active material from the first treatment solution to obtain a second treatment solution containing the water and the organic solvent; and a fourth step of removing the water from the second treatment solution and recovering the organic solvent.",
  "title": "METHOD FOR TREATING CLEANING WASTE LIQUID"
}