Research output: Contribution to journal › Article › peer-review
Using a Microchannel Reactor to Optimize the Production of 1-Alkyl-3-Methylimidazolium Chlorides. / Klimenko, A. S.; Andreev, D. V.; Prikhod’ko, S. A. et al.
In: Catalysis in Industry, Vol. 12, No. 3, 01.07.2020, p. 207-215.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Using a Microchannel Reactor to Optimize the Production of 1-Alkyl-3-Methylimidazolium Chlorides
AU - Klimenko, A. S.
AU - Andreev, D. V.
AU - Prikhod’ko, S. A.
AU - Gribovskii, A. G.
AU - Makarshin, L. L.
AU - Adonin, N. Yu
PY - 2020/7/1
Y1 - 2020/7/1
N2 - The possibility of using microchannel flow reactors to obtain the kinetic and technological parameters of the synthesis of 1-butyl-3-methylimidazolium chloride (BMIMCl) ionic liquid is demonstrated for the reaction of 1-methylimidazole (MIm) with 1-chlorobutane with no solvents. BMIMCl is produced with high selectivity and specific output in a microchannel flow reactor at temperatures of 120–180°C a contact time of 2–45 min, and a pressure of 20 bar. A positive result is obtained, due to the laminar profile of the flow and a uniform distribution of the reagents concentration over the microchannel cross section. Studying the kinetics of the process in a microchannel flow reactor reveals a shift of the reaction to the mode of diffusive inhibition at temperatures above 150°C. The kinetic data obtained for BMIMCl synthesis are used to develop ways of producing 1-ethyl-3-methylimidazolium and 1-hexyl-3-methylimidazolium chlorides (EMIMCl and HMIMCl, respectively) under the conditions of a microchannel flow reactor. The approach proposed in this work is of interest in developing flow and periodic facilities for the low-tonnage production of dialkylimidazolium, ammonium, and pyridinium salts via quaternization of the corresponding alkyl chlorides and nitrogen-containing bases.
AB - The possibility of using microchannel flow reactors to obtain the kinetic and technological parameters of the synthesis of 1-butyl-3-methylimidazolium chloride (BMIMCl) ionic liquid is demonstrated for the reaction of 1-methylimidazole (MIm) with 1-chlorobutane with no solvents. BMIMCl is produced with high selectivity and specific output in a microchannel flow reactor at temperatures of 120–180°C a contact time of 2–45 min, and a pressure of 20 bar. A positive result is obtained, due to the laminar profile of the flow and a uniform distribution of the reagents concentration over the microchannel cross section. Studying the kinetics of the process in a microchannel flow reactor reveals a shift of the reaction to the mode of diffusive inhibition at temperatures above 150°C. The kinetic data obtained for BMIMCl synthesis are used to develop ways of producing 1-ethyl-3-methylimidazolium and 1-hexyl-3-methylimidazolium chlorides (EMIMCl and HMIMCl, respectively) under the conditions of a microchannel flow reactor. The approach proposed in this work is of interest in developing flow and periodic facilities for the low-tonnage production of dialkylimidazolium, ammonium, and pyridinium salts via quaternization of the corresponding alkyl chlorides and nitrogen-containing bases.
KW - 1-alkyl-3-methylimidazolium chloride
KW - BMIMCl
KW - ionic liquid
KW - microchannel flow reactor
KW - quaternization reaction
KW - DESIGN
KW - MICROREACTOR
KW - FLOW
KW - SOLVENT
KW - PHASE
KW - TEMPERATURE
KW - KINETICS
KW - CHEMISTRY
KW - IONIC LIQUIDS
UR - http://www.scopus.com/inward/record.url?scp=85091645802&partnerID=8YFLogxK
U2 - 10.1134/S2070050420030071
DO - 10.1134/S2070050420030071
M3 - Article
AN - SCOPUS:85091645802
VL - 12
SP - 207
EP - 215
JO - Catalysis in Industry
JF - Catalysis in Industry
SN - 2070-0504
IS - 3
ER -
ID: 25677099