HYDROGEL HAVING REDUCING AGENTS AND METHOD FOR PREPARING THE SAME

PURPOSE: A manufacturing method of hydrogel is provided to be able to simplify the process compared to the conventional hydrometallurgy method as solid-liquid separation is possible in recovery of valuable metals, and to be able to operate the process in an environment-friendly manner as the seconda...

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Hauptverfasser: ASIAH NUSAIBAH BINTI MASRI, PHAM THI PHUONG THUY, PARK, SEONG IN, MURTHY SNEHA KRISHNA, MUNAGAPATI VENKATA SUBBAIAH, KIM, SOK, YUN, YEOUNG SANG, KWAK, IN SEOB, LIM, A REAM, SONG, MYUNG HEE, KO, YU LIM, BAE, MIN A
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:PURPOSE: A manufacturing method of hydrogel is provided to be able to simplify the process compared to the conventional hydrometallurgy method as solid-liquid separation is possible in recovery of valuable metals, and to be able to operate the process in an environment-friendly manner as the secondary sludgy is not generated. CONSTITUTION: A manufacturing method of hydrogel comprises a step of injecting a polymer solution to a mixture solution of metal reduction material and a coagulating agent. The injection step comprises a step of containing the metal reduction material in the inside or on the surface while the dissolved polymer is coagulated. The concentration of the polymer solution is 0.01-50% (w/w). The concentration of the metal reduction material is 0.01-25% (w/v) to the polymer solution. The concentration of the coagulating agent is 0.01-20% (w/v). The coagulating agent is sodium polyphosphate, calcium chloride, ethanol, water or sodium hydroxide solution. [Reference numerals] (AA) 096 GA hydro-gel; (BB) 396 GA containing hydro-gel