Catalyst for use in producing lower aliphatic carboxylic acid ester, process for producing the catalyst,and process for producing lower aliphatic carboxylic acid ester using the catalyst

摘要

A catalyst, for use in producing a lower aliphatic carboxylic acid ester, which is used in producing a lower aliphatic carboxylic acid ester by esterifying a lower aliphatic carboxylic acid with a lower alcohol in a gas phase and which can exhibit high initial activity and is able to stably and continuously perform the reaction. The catalyst comprises an inorganic support having supported thereon at least one heteropolyacid and/or a salt thereof.