CATALYST, METHOD FOR SYNTHESIZING ALKYLMERCAPTAN AND PRODUCTION OF THE CATALYST

CATALYST, METHOD FOR SYNTHESIZING ALKYLMERCAPTAN AND PRODUCTION OF THE CATALYST

PROBLEM TO BE SOLVED: To remarkably improve activity and selectivity when the molar ratio of hydrogen sulfide to methanol is small by incorporating a specified amount of cesium tungstate as a promoter in a catalyst consisting of the compact of aluminum oxide. SOLUTION: This catalyst for synthesizing...

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Hauptverfasser: HIPPEL LUCAS VON DR, SAUER JOERG DR, BURKHARDT WERNER, ARNTZ DIETRICH DR, BOECK WOLFGANG DR, RAUTENBERG STEPHAN DR, HOFEN WILLI
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Zusammenfassung:PROBLEM TO BE SOLVED: To remarkably improve activity and selectivity when the molar ratio of hydrogen sulfide to methanol is small by incorporating a specified amount of cesium tungstate as a promoter in a catalyst consisting of the compact of aluminum oxide. SOLUTION: This catalyst for synthesizing methylmercaptan is composed of the compact of the aluminum oxide containing alkali metal tungstate as the promoter. The catalyst is the cesium tungstate in which the promoter is mixed by the amount of 15-40wt.%, preferably about 20-35wt.% per total weight of the completed catalyst. The so-called activated aluminum oxide is used as the aluminum oxide. The compact is used preferably in the from the granulated or extruded aluminum oxide having about 1-5mm grain size, 180-400m /g specific surface area, about 0.3-1.0ml/g total fine pore volume and 300-900g/l bulk density.