A kind of method that tungsten is extracted from wolframite or Scheelite-Wolframite Mixed Mine

A kind of method that tungsten is extracted from wolframite or Scheelite-Wolframite Mixed Mine

  • CN 104,878,223 B
  • Filed: 05/13/2015
  • Issued: 09/19/2017
  • Est. Priority Date: 05/13/2015
  • Status: Active Grant
First Claim
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1. a kind of method that tungsten is extracted from wolframite or Scheelite-Wolframite Mixed Mine, it is characterised in that the bar of 10 times of acceleration of gravityUnder part, alkaline calcareous material is incorporated in tungsten mineral material grinding process, the tungsten ore material obtained after reaction is entered using phosphorus acid-sulfur acidRow is decomposed;

  • Described alkaline calcareous material includes one or more of mixtures in calcium hydroxide, calcium oxide or lime;

    It is describedAlkaline calcareous material consumption by (Fe, Mn) WO in Ca contents and tungsten mineral4The 1 of content mol ratio;

    1~6;

    1 meter;

    Ore grinding mistakeCheng Caiyong dry grinds or wet-milling, and it is 0.5 that liquid-solid ratio is controlled during wet-milling;

    1~3;

    1mL/g, ball-milling reaction time at least 30min;

    The sulfuric-phosphoric leachate of preparation, control sulfuric acid concentration is in 150g/L-250g/L, and phosphoric acid concentration is leached in 10g/L-350g/L60~95 DEG C of temperature, 1~5h of extraction time, liquid-solid ratio 3;

    1~10;

    1mL/g.

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