申请人:Schneider Daniel
公开号:US20130190532A1
公开(公告)日:2013-07-25
Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which a liquid stream comprising formic acid, tertiary amine (I) and water is produced by combining tertiary amine (I) and a formic acid source in the presence of water, water and organic decomposition products of the tertiary amine (I) are removed and formic acid is removed by distillation from the resulting liquid stream in a distillation apparatus, wherein the stream comprising water and organic decomposition products of the tertiary amine (I) which have been separated off is separated into two liquid phases, the upper liquid phase is removed and the lower, water-comprising liquid phase is recirculated to the formic acid source.
通过热分离获得甲酸的过程,其中包括甲酸和三级胺(I)的流体,通过将三级胺(I)和甲酸源在水的存在下结合以产生包含甲酸、三级胺(I)和水的液体流,去除水和三级胺(I)的有机分解产物,并通过蒸馏从所得液体流中去除甲酸,在蒸馏设备中分离出含有水和三级胺(I)的有机分解产物的流体,将分离出的上层液相移除,下层含水液相循环回甲酸源。