Method for extracting vanadium by stone coal and sulfuric acid wet pile oxidation conversion at normal temperature and pressure

Method for extracting vanadium by stone coal and sulfuric acid wet pile oxidation conversion at normal temperature and pressure

  • CN 101,476,036 A
  • Filed: 01/19/2009
  • Published: 07/08/2009
  • Est. Priority Date: 01/19/2009
  • Status: Active Grant
First Claim
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1. , the method for bone coal sulfate-adding wet-pile oxidation conversion of leached vanadium under a kind of normal temperature and pressure is characterized in that, may further comprise the steps:

  • (1) becomes grinding stone coal the stone coal powder of particle diameter 0.5-1.5mm;

    (2) according to ratio adding sulfuric acid and the water of quality, stir than stone coal powder;

    sulfuric acid;

    water=100;

    10-25;

    5-12, at normal temperatures and pressures, wet heap 3-15 days, heap height 〉

    =2 meters, described sulfuric acid can be industrial sulphuric acid;

    (3) at normal temperatures and pressures, be that the ratio of 1;

    0.7-1.5 adds water according to the solid-liquid weight ratio, agitation leach 30-120 minute, adjust pH to 2-3, filter and remove residue promptly obtains blue vanadium sulfate acyl solution.

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