Preparation of MnFe2O4 and its Application in Fenton System Degumming
The traditional Fenton oxidation system requires a high pH value,usually between pH 2 and 3,otherwise a large amount of iron sludge will be produced.Therefore,MnFe2O4 is added to the traditional Fenton oxidation system,and the prepara-tion process of MnFe2O4 is studied and determined.Explore environmentally friendly and efficient degumming processes.The re-sults showed that the catalytic performance of MnFe2O4 was better when 0.002mol FeCl3·6H2O and 0.001 mol MnCl2·4H2O were added,and 30mL ethylene glycol was used as the solvent,2.7g sodium acetate was used to adjust the pH,and the reaction was carried out at 180 ℃ for 10 hours.The improved Fenton system was able to perform degumming treatment on hemp fibers under pH=5.
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