PROCESS FOR PRODUCING SUPERABSORBENTS

• Main Authors: PETERSON, Monte Alan, WEISMANTEL, Matthias, POSSEMIERS, Karl, DE KAEY, Ronny, SCHROEDER, Juergen, FUNK, Ruediger
• Format: Patent
• Language: English; French
• Published: 22.05.2020
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a process for producing superabsorbent polymer particles, comprising polymerization of a monomer solution, wherein the monomer solution comprises partly neutralized acrylic acid formed by continuous mixing of acrylic acid and an aqueous solution of a base, the apparatus for preparing the partly neutralized acrylic acid comprises a vessel (B), and the vessel (B) has a cylindrical shape and a torispherical bottom. L'invention concerne un processus de production de particules polymères superabsorbantes, comprenant la polymérisation d'une solution monomère, la solution monomère comprenant de l'acide acrylique partiellement neutralisé formé par mélange continu d'acide acrylique et d'une solution aqueuse d'une base, l'appareil de préparation de l'acide acrylique partiellement neutralisé comprend un récipient (B), et le récipient (B) a une forme cylindrique et un fond torisphérique.