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公开(公告)号：ZA802156B
公开(公告)日：1981-05-27
申请号：ZA802156
申请日：1980-04-10
Applicant: BASF AG
IPC: C07C27/02 , C07C53/02 , C07C51/00 , C07C51/09 , C07C51/42 , C07C51/44 , C07C51/48 , C07C67/00 , C07C
Abstract: Anhydrous or substantially anhydrous formic acid is obtained by hydrolysis of methyl formate, in a process wherein (a) methyl formate is hydrolyzed, (b) the methanol and excess methyl formate are distilled from the hydrolysis mixture obtained, (c) the bottom product of distillation (b), consisting of formic acid and water, is extracted, in a liquid-liquid extraction, with an extractant which in the main takes up the formic acid, (d) the resulting extract phase, consisting of formic acid, the extractant and a part of the water, is subjected to distillation, (e) the top product obtained from this distillation and consisting of all or part of the water introduced into the distillation, and part of the formic acid, is recycled, as vapor, into the lower part of the distillation column of stage (b), (f) the bottom product of distillation stage (d), consisting of the extractant, with or without part of the water, and the greater part of the formic acid, is separated by distillation into anhydrous or substantially anhydrous formic acid and the extractant, and (g) the extractant leaving stage (f) is recycled to the process.
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2.发明专利
公开(公告)号：AR057191A1
公开(公告)日：2007-11-21
申请号：ARP060105238
申请日：2006-11-28
Applicant: BASF AG
Abstract: Procedimiento para la síntesis de olefinas a partir de gas de síntesis en presencia de por lo menos un catalizador de Fischer-Tropsch en una columna de reaccion, en el que se introduce el gas de síntesis por debajo de una zona A de la columna de reaccion en la columna de reaccion y se descargan las olefinas formadas por debajo de la alimentacion para el gas de síntesis.
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