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Selectivity of a heterogeneous rhodium catalyst for the carbonylation of monohydric alcohols

Journal Article:

Abstract

Selectivity of a heterogeneous rhodium catalyst for the carbonylation of monohydric alcohols with carbon monoxide in the presence of the corresponding alkyl iodides as promotors was studied in a glass reactor at approx. 0.05:1 alcohol/carbon monoxide ratio. The 1% by wt rhodium-zeolite catalyst was prepared by immersing a Linde molecular sieve zeolite Type 13X in rhodium trichloride at 80/sup 0/C for 15 hr. Methanol was converted to methyl acetate at 433/sup 0/-513/sup 0/K with selectivites > 90% even at the highest temperatures, and dimethyl ether was by-produced. In the absence of methyl iodide, the carbonylation rate decreased drastically but the dehydration was virtually unaffected. The selectivity for ethanol carbonylation decreased from 99% at 383/sup 0/K to 6% at 523/sup 0/K due to the formation of ethylene (predominant at > 470/sup 0/K) and diethyl ether. The only product of the reaction with propan-2-ol studied at 433/sup 0/ or 473/sup 0/K was propene with 100% conversion at 473/sup 0/K. These results are consistent with the relative ease of reactant dehydration on polar catalysts. Table and 13 references.
Publication Date:
Jan 01, 1977
Product Type:
Journal Article
Reference Number:
EDB-83-161285
Resource Relation:
Journal Name: J. Chem. Soc., Faraday Trans. 1; (United Kingdom); Journal Volume: 12
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 10 SYNTHETIC FUELS; ETHANOL; CARBONYLATION; DEHYDRATION; IODINATED ALIPHATIC HYDROCARBONS; CATALYTIC EFFECTS; METHANOL; RHODIUM; CARBON MONOXIDE; CATALYSTS; EVALUATION; HETEROGENEOUS EFFECTS; HIGH TEMPERATURE; TEST FACILITIES; ZEOLITES; ALCOHOLS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; HALOGENATED ALIPHATIC HYDROCARBONS; HYDROXY COMPOUNDS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; MATERIALS; METALS; MINERALS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC IODINE COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PLATINUM METALS; TRANSITION ELEMENTS; 400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987); 090210 - Alcohol Fuels- Properties- (1976-1989)
OSTI ID:
5995132
Research Organizations:
Technical Univ., Denver, CO
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: JCFTA
Submitting Site:
HEDB
Size:
Pages: 2036-2039
Announcement Date:

Journal Article:

Citation Formats

Christensen, B, and Scurrell, M S. Selectivity of a heterogeneous rhodium catalyst for the carbonylation of monohydric alcohols. United Kingdom: N. p., 1977. Web. doi:10.1039/f19777302036.
Christensen, B, & Scurrell, M S. Selectivity of a heterogeneous rhodium catalyst for the carbonylation of monohydric alcohols. United Kingdom. doi:10.1039/f19777302036.
Christensen, B, and Scurrell, M S. 1977. "Selectivity of a heterogeneous rhodium catalyst for the carbonylation of monohydric alcohols." United Kingdom. doi:10.1039/f19777302036. https://www.osti.gov/servlets/purl/10.1039/f19777302036.
@misc{etde_5995132,
title = {Selectivity of a heterogeneous rhodium catalyst for the carbonylation of monohydric alcohols}
author = {Christensen, B, and Scurrell, M S}
abstractNote = {Selectivity of a heterogeneous rhodium catalyst for the carbonylation of monohydric alcohols with carbon monoxide in the presence of the corresponding alkyl iodides as promotors was studied in a glass reactor at approx. 0.05:1 alcohol/carbon monoxide ratio. The 1% by wt rhodium-zeolite catalyst was prepared by immersing a Linde molecular sieve zeolite Type 13X in rhodium trichloride at 80/sup 0/C for 15 hr. Methanol was converted to methyl acetate at 433/sup 0/-513/sup 0/K with selectivites > 90% even at the highest temperatures, and dimethyl ether was by-produced. In the absence of methyl iodide, the carbonylation rate decreased drastically but the dehydration was virtually unaffected. The selectivity for ethanol carbonylation decreased from 99% at 383/sup 0/K to 6% at 523/sup 0/K due to the formation of ethylene (predominant at > 470/sup 0/K) and diethyl ether. The only product of the reaction with propan-2-ol studied at 433/sup 0/ or 473/sup 0/K was propene with 100% conversion at 473/sup 0/K. These results are consistent with the relative ease of reactant dehydration on polar catalysts. Table and 13 references.}
doi = {10.1039/f19777302036}
journal = {J. Chem. Soc., Faraday Trans. 1; (United Kingdom)}
volume = {12}
journal type = {AC}
place = {United Kingdom}
year = {1977}
month = {Jan}
}