Producing a dialkyl carbonate by oxidative carbonylation in the presence of a supported on a solid phase substrate copper-containing catalyst.

Weiterer Publikationstyp
(Patent)


Details zur Publikation

Autor(en): Sundermeyer J, Wasserscheid P, Stricker M, Melcher BU, Haumann M
Verlag: Philipps-Universitaet Marburg, Germany .
Jahr der Veröffentlichung: 2012
Heftnummer: DE102010036631A1
Seitenbereich: 49pp.; Chemical Indexing Equivalent to 156:175729 (DE)


Abstract


A method for producing a dialkyl carbonate comprises reacting alkanol with carbon monoxide and oxygen in the presence of a supported on a solid phase substrate copper-contg. catalyst having m.p. ≤120° (catalyst is present on the solid phase substrate under method conditions in a liq. state). A copper-contg. complex compd. belonging to the catalyst comprises at least one nitrogen compd. such as N-alkylimidazoles, N,N -dialkylamino pyridines, N-alkylpyrazoles or N alkylguanidines as an N-donor ligand and/or a quaternized nitrogen compd. as an org. cation. Thus, mixing 15 min 6.17 g [Cu(Im12)2][CuBr2] (Im12 = 1-dodecylimidazole rest) with 90 mL acetonitrile in the absence of oxygen, adding 10.5 g silica gel having particle size 0.063 - 0.20 mm and BET surface area 335 m2/g, stirring 15 min, heating under stirring to 50°, treating with ultrasound, them reducing pressure to 500 Pa gave after 45 min a catalyst powder used in oxidative carbonylation of methanol to di-Me carbonate exhibiting selectivity 83% by reacting 4 h at 120° at O2 pressure 3 bar and CO pressure 50 bar. [on SciFinder(R)]



FAU-Autoren / FAU-Herausgeber

Haumann, Marco PD Dr.
Lehrstuhl für Chemische Reaktionstechnik
Wasserscheid, Peter Prof. Dr.
Lehrstuhl für Chemische Reaktionstechnik


Autor(en) der externen Einrichtung(en)
Philipps-Universität Marburg


Zitierweisen

APA:
Sundermeyer, J., Wasserscheid, P., Stricker, M., Melcher, B.U., & Haumann, M. (2012). Producing a dialkyl carbonate by oxidative carbonylation in the presence of a supported on a solid phase substrate copper-containing catalyst. Philipps-Universitaet Marburg, Germany ..

MLA:
Sundermeyer, Jörg, et al. Producing a dialkyl carbonate by oxidative carbonylation in the presence of a supported on a solid phase substrate copper-containing catalyst. Philipps-Universitaet Marburg, Germany ., 2012.

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Zuletzt aktualisiert 2018-10-08 um 03:28