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Process for isolating an alkali metal 2,4-dichlorophenoxide and 2,4-dichlorophenol in a mixture of chlorophenols

机译:分离氯酚混合物中的碱金属2,4-二氯酚盐和2,4-二氯苯酚的方法

摘要

The process for isolating an alkali metal 2,4-dichlorophenoxide and 2,4-dichlorophenol in a mixture of chlorophenols in an interaction of the mixture of chlorophenols and of an aqueous alkali solution in the presence of an aromatic hydrocarbon having a boiling temperature of 80-150 DEG C or of a mixture of the latter and an aliphatic alcohol. The process is carried out at a ratio by weight between the mixture of chlorophenols and the aromatic hydrocarbon of 1:1-3 respectively or between the mixture of chlorophenols, aromatic hydrocarbon and aliphatic alcohol of 1:1-3:0.05-0.2 respectively until a mixture of alkali metal chlorophenoxides is formed, which mixture is subjected to azeotropic drying and which is then cooled with subsequent isolation of the alkali metal 2,4-dichlorophenoxide in the form of a precipitate, which is treated if necessary with an inorganic acid until 2,4-dichlorophenol has formed.
机译:在沸点为80的芳烃存在下,在氯酚混合物和碱水溶液的相互作用下,分离氯酚混合物中的碱金属2,4-二氯苯氧化物和2,4-二氯苯酚的方法-150℃或后者与脂族醇的混合物。该方法以氯酚和芳烃的混合物之间的重量比分别为1:1-3或氯酚,芳族烃和脂族醇的混合物之间的重量比分别为1:1-3:0.05-0.2进行直到形成碱金属氯酚盐的混合物,将其进行共沸干燥,然后冷却,随后分离出沉淀形式的碱金属2,4-二氯酚盐,必要时将其用无机酸处理直至2,4-二氯苯酚已经形成。

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