{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "Preparation of lithium carbonate, as part of a lithium-ion battery recovering process, comprising: a first step of cleaning an organic phase containing nickel and lithium, prepared by a solvent extraction, by use of a sulfuric acid solution containing nickel and enriching lithium in the cleaning…",
  "path": "/patents/1015890",
  "publishedAt": "2011-02-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01D15/08",
    "JX NIPPON MINING & METALS CORP [JP]"
  ],
  "textContent": "Preparation of lithium carbonate, as part of a lithium-ion battery recovering process, comprising: a first step of cleaning an organic phase containing nickel and lithium, prepared by a solvent extraction, by use of a sulfuric acid solution containing nickel and enriching lithium in the cleaning solution; a second step of extracting residual nickel only by an organic solvent from a post-cleaning solution in which the lithium is enriched; and a third step of controlling the pH of the post-extraction solution containing the lithium by ammonia water or lithium hydroxide.",
  "title": "Preparation method of lithium carbonate from lithium-ion secondary battery recovered material"
}