| 摘要 |
Halogenated and alkylated products containing corrosive acids are neutralized and dried by contact with caustic in a neutralization system in which the neutralized product is separated into aqueous and organic phases. The organic phase is azeotropically distilled in a drying tower to obtain neutralized, dried halogenated product and an overhead containing halogenated product, water and trace amounts of the corrosive acid formed during the distillation. The overhead is recycled to the neutralization system after being mixed with caustic upstream of the neutralization system, whereby the need to protect the neutralization system and recycling system from the effects of the corrosive acid is avoided.
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