Processes for producing an α,β-unsaturated carboxylic acid, such as acrylic acid, or a salt thereof, using solid promoters are disclosed. The starting material either is a metallalactone or comprises an olefin and carbon dioxide. The solid promoters can be certain solid oxides, mixed oxides, and clays, illustrative examples of which can include alumina, zirconia, magnesia, magnesium aluminate, sepiolite, and similar materials.
公开了使用固体
促进剂生产α,β-不饱和
羧酸(如
丙烯酸)或其盐的工艺。起始材料可以是
金属内酯或包括烯烃和
二氧化碳。固体
促进剂可以是某些固体氧化物、混合氧化物和粘土,例如氧化铝、
氧化锆、
氧化镁、
镁铝酸盐、
海泡石等类似材料。