{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreifeddj4q7uauvztod4oclj26fu2rabzurgmag2sey3zxyq4qimsta"
    },
    "mimeType": "image/png",
    "size": 87131
  },
  "description": "The objective of the present invention is to selectively extract cobalt from an acidic solution containing a high concentration of manganese. This cobalt extraction method extracts cobalt from an acidic solution containing manganese and cobalt by subjecting the acidic solution to solvent extraction…",
  "path": "/patents/979936",
  "publishedAt": "2014-01-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01F17/17",
    "UNIV KYUSHU NAT UNIV CORP [JP]"
  ],
  "textContent": "The objective of the present invention is to selectively extract cobalt from an acidic solution containing a high concentration of manganese. This cobalt extraction method extracts cobalt from an acidic solution containing manganese and cobalt by subjecting the acidic solution to solvent extraction by means of a valuable metal extraction agent comprising an amide derivative represented by general formula (I). The valuable metal extraction agent is represented by the general formula. In the formula: R 1 and R 2 each represent the same or different alkyl group; R 3 represents a hydrogen atom or an alkyl group; and R 4 represents a hydrogen atom or any given group aside from an amino group bonded to the a carbon as an amino acid. Preferably, the general formula has a glycine unit, a histidine unit, a lysine unit, an aspartic acid unit, or an N-methylglycine unit. Preferably, the pH of the acidic solution is 3.5-5.5 inclusive.",
  "title": "COBALT EXTRACTION METHOD"
}