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Facile Preparation of Fe 3 O 4 from Fe 2 O 3 via Reduction of Mixed Vapors Containing Lactic Acid and Water: Catalytic Deoxygenation of Lactic Acid into Propionic Acid
Author(s) -
Zhang Yu,
Li Xinli,
Sun Liangwei,
Tang Congming
Publication year - 2016
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201601195
Subject(s) - deoxygenation , lactic acid , catalysis , chemistry , nuclear chemistry , inorganic chemistry , organic chemistry , bacteria , genetics , biology
Abstract An efficient and simple method for reduction of Fe 2 O 3 into Fe 3 O 4 using the mixed vapors including lactic acid‐water has been developed. Various characterizations such as XRD, FT‐IR, XPS, TG, BET and SEM were used to investigate in the process of Fe 2 O 3 converted into Fe 3 O 4 . An interesting result was found: Fe 2 O 3 is easily reduced into Fe 3 O 4 , and it stays in the state of Fe 3 O 4 even if the time for its reduction further lengthened. The as‐prepared Fe 3 O 4 was used to catalyze deoxygenation of lactic acid into propionic acid. Reaction temperature, residence time and stability were also discussed. It was found that enhancing reaction temperature favors deoxygenation of lactic acid into propionic acid, and shortening residence time also favors the formation of propionic acid. Especially, it offered an excellent adaptability for fluctuation of lactic acid feed flow rate.