Method of preparing high-molecular water-absorbent resin with peanut residue

Method of preparing high-molecular water-absorbent resin with peanut residue

  • CN 105,585,674 A
  • Filed: 11/06/2014
  • Published: 05/18/2016
  • Est. Priority Date: 11/06/2014
  • Status: Active Application
First Claim
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1. utilize peanut dregs to prepare a method for hydroscopic high-molecular resin, it is characterized in that, step is as follows:

  • (1) acrylic acid of 110-150g is dissolved in 50ml water, obtains acrylic acid aqueous solution;

    (2) by 50g dissolution of sodium hydroxide in 150ml water, obtain sodium hydrate aqueous solution;

    (3) sodium hydrate aqueous solution is slowly added in acrylic acid aqueous solution, is mixed with the propylene that degree of neutralization is 60-81.8%Acid sodium aqueous solution is for subsequent use;

    (4) previously prepared 4-16g good peanut dregs and 50-100ml water are added in there-necked flask or beaker, at 80-90Gelatinization 0.8-1.2h at DEG C temperature, is cooled to 40 DEG C;

    (5) add and be dissolved with the PAA solution that the degree of neutralization of 0.02-0.04g crosslinking agent is 60-81.8%, stir and logical nitrogenAfter deoxygenation 30min, add 0.18-0.4g initator, be warming up to 55 DEG C of reaction 5h, be cooled to room temperature;

    (6) adopt NaOH to carry out the solution of neutralization procedure (5), after the pH of solution value is adjusted to 7, utilize centrifugeCentrifugal 5min under 3000r/min speed, then wash 5min with distilled water, dry;

    (7) to be dried while being no more than 5% to water content, be divided into fritter, then dry at 70-120 DEG C of temperature, pulverize,Cross 150 mesh sieves, packaging.

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