Method for synthesizing super absorbent resin by taking carboxymethyl cassava residue as raw material

Method for synthesizing super absorbent resin by taking carboxymethyl cassava residue as raw material

  • CN 104,072,672 A
  • Filed: 07/08/2014
  • Published: 10/01/2014
  • Est. Priority Date: 07/08/2014
  • Status: Active Application
First Claim
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1. the method feature that the carboxymethyl manioc waste of take is raw material synthesizing super absorbent resin be its method and step as:

  • (1) carboxymethyl manioc waste is mixed by the mass ratio of 1;

    8 with deionized water;

    Take carboxymethyl manioc waste quality 4-12 vinylformic acid doubly, take vinylformic acid quality 0.1113-0.3887 sodium hydroxide doubly, with the deionized water of 27.5ml, dissolve respectively the sodium hydroxide of above-mentioned scope;

    In the above-mentioned sodium hydroxide solution of the cooling lower use of ice-water bath and vinylformic acid;

    (2) above-mentioned carboxymethyl manioc waste is mixed with the acrylic acid solution partly neutralizing with sodium hydroxide with the mixed solution of deionized water in reaction flask, add the potassium persulfate solution that contains carboxymethyl manioc waste quality 1~

    5% to make initiator, add the N that contains carboxymethyl manioc waste quality 0.4~

    1.2%, N '

    -methylene-bisacrylamide solution is made linking agent, stirring makes it to mix, pass into nitrogen, constantly stirring slowly heating progressively raises temperature of reaction system, when rising to 70-80 ℃

    , temperature stops stirring, continue to heat up and be incubated 2h after temperature reaches 90 ℃

    , take out product, drying, pulverize and obtain High hydrophilous resin.

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