Process for producing particulate water-absorbing resin

Process for producing particulate water-absorbing resin

  • CN 102,378,778 A
  • Filed: 03/31/2010
  • Published: 03/14/2012
  • Est. Priority Date: 03/31/2009
  • Status: Active Application
First Claim
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1. the method for manufacture of a particle-shape water-absorbing resin is characterized in that, it is the method for continuous production of ROHM (salt) water-absorbent resin, and this method comprises following operation:

  • the polymerization process that contains the aqueous solution of vinylformic acid (salt);

    The drying process of resulting aqueous gel shaped polymer;

    The pulverizing process of dry thing;

    The classification operation of crushed material;

    The surface-crosslinked operation of classification thing as required,(a) above-mentioned drying process and above-mentioned pulverizing process comprise the storage operation betwixt and link to each other with the conveying operation, and(b) will the dry thing hold-time till the zero hour of above-mentioned pulverizing process be made as more than 3 minutes constantly from the termination of above-mentioned drying process.

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