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发明公开
CN107207406A 用增强的液‑液萃取制造腈的整合方法 有权 转让

用增强的液‑液萃取制造腈的整合方法
摘要：
使用液‑液萃取从包含3‑戊烯腈(3PN)和己二腈(ADN)的混合物回收含磷配体。通过3PN的氢氰化产生ADN。使ADN氢化以产生六亚甲基二胺(HMD)和包括双六亚甲基三胺(BHMT)或1，2‑二氨基环己烷的至少一种副产物。所述HMD产物或副产物的至少一部分用于增强所述液‑液萃取以回收含磷配体。
摘要（英）：

Phosphorus-containing ligands are recovered from mixtures comprising 3-pentenenitrile (3PN) and adiponitrile (ADN), using liquid-liquid extraction. ADN is produced by hydrocyanation of 3PN. The ADN is hydrogenated to produce a hexamethyiene diamine (HMD) and at Ieast one byproduct including bis-hexamethylene triamine (BHMT) or 1,2-diaminocyclohexane. At Ieast a portion of the HMD product or byproduct is used to enhance the liquid-liquid extraction to recover phosphorus-containing ligand.

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