Preparation method for superparamagnetism ferroferric oxide sub-micron hollow microsphere

Preparation method for superparamagnetism ferroferric oxide sub-micron hollow microsphere

  • CN 103,663,571 A
  • Filed: 12/24/2013
  • Published: 03/26/2014
  • Est. Priority Date: 12/24/2013
  • Status: Active Application
First Claim
Patent Images

1. the preparation method of SPIO submicron tiny balloon, includes following steps:

  • 1) get 4~

    10mmol reductive agent, 2~

    6mmol source of iron and 10~

    15mmol alkali source, be dissolved in distilled water;

    2) by tensio-active agent 2 * 10 -4

    6 * 10 -4mmol is dissolved in step

         1) gained solution;

    3) by step

         2) solution of gained moves in reactor, in 150~

    220 ℃

    of baking ovens, react 8~

    20h, naturally cool to room temperature ageing 3~

    10h, washing, alcohol wash 2~

    5 times, dry in 40~

    70 ℃

    of vacuum drying ovens, obtain having SPIO submicron tiny balloon.

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