Method for quickly extracting humic acid

Method for quickly extracting humic acid

  • CN 104,403,112 A
  • Filed: 12/04/2014
  • Published: 03/11/2015
  • Est. Priority Date: 12/04/2014
  • Status: Active Application
First Claim
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1. a humic acids rapid extracting method, is characterized in that comprising the steps:

  • 1) by low-rank coal drying, pulverizing, removal of impurities, low order coal dust is obtained;

    2) by low order coal dust, sodium hydroxide, water in mass ratio 1;

    0.06-0.2;

    4-6 mix, obtain mixed solution;

    3) described mixed solution is reacted 30s-10min in microwave reactor, microwave power is 500-1000W;

    4) by centrifugal after reacted mixed solution naturally cooling, supernatant liquor is got;

    5) dried by supernatant liquor, recycle-water also obtains humic acids product.

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