Preparation method and application of magnesium oxide-rice husk biological carbon composite material

Preparation method and application of magnesium oxide-rice husk biological carbon composite material

  • CN 106,669,603 A
  • Filed: 12/07/2016
  • Published: 05/17/2017
  • Est. Priority Date: 12/07/2016
  • Status: Active Application
First Claim
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1. the preparation method of a kind of magnesium oxide-rice husk biology carbon composite, it is characterised in that including following operating procedure:

  • (1) fresh rice husk is taken, under the conditions of being placed in 80-90 DEG C after cleaning 10-16h is dried, 10-50 mesh sieves are crossed after crushing, in logical N2With 3-8 DEG C/min of ramp to 300-400 DEG C under conditions of anoxybiotic, thermal cracking 2-4h under the temperature conditionss is kept, it is naturalRoom temperature is cooled to, post-drying is cleaned with water to constant weight, obtain rice husk charcoal;

    (2) rice husk charcoal is added into mass concentration to obtain mixing material in the magnesia magma of 0.6-3%, magnesium oxideQuality is the 3-15% of mixing material quality;

    Ultrasonic reaction 1-2h after stirring and evenly mixing, 20-24h under the conditions of being placed in 85-105 DEG C, thenProceed in vacuum tube furnace in logical N2Under the conditions of 300-400 DEG C of heat treatment 20-60min, obtain magnesium oxide-rice husk charcoal be combinedMaterial.

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