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Magnetic Solid Base Catalyst Fe 3 O 4 @Gly Used as Acid‐Resistant Catalyst for Biodiesel Production
Author(s) -
Zhang Pingbo,
Shi Min,
Fan Mingming,
Jiang Pingping,
Dong Yuming
Publication year - 2018
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201700368
Subject(s) - catalysis , biodiesel , chemistry , biodiesel production , oleic acid , methanol , transesterification , coprecipitation , soybean oil , yield (engineering) , nuclear chemistry , base (topology) , dissolution , organic chemistry , materials science , metallurgy , biochemistry , mathematical analysis , mathematics
Fe 3 O 4 @Gly nanoparticles were synthetized by coprecipitation and studied in the transesterification of soybean oil and methanol to determine its performance for biodiesel synthesis. The magnetism and catalytic performance of Fe 3 O 4 @Gly alkaline catalyst were investigated in detail. With a catalyst dosage 1.5 wt %, methanol/soybean oil ratio of 15:1, reaction temperature of 65 °C, and a reaction time of 3 h, the highest yield of biodiesel was 95.8%. The strong base catalyst CaO was used as comparison, from which it was seen that Fe 3 O 4 @Gly was more hydrophobic than the former. Moreover, because of the complete dissolution of oleic acid in methanol, Fe 3 O 4 @Gly could make better contact with oleic acid, which made it perform far better than pure CaO in oleic acid. In addition, after four times recycling, the yield of biodiesel was still 86.6%. The results show that Fe 3 O 4 @Gly possesses excellent properties of acid resistance and recyclability. The catalyst can be a high‐efficiency alkaline heterogeneous catalyst for biodiesel production.