Process for producing hexamethylenediamine and aminocapronitrile from adiponitrile, wherein the hexamethylenediamine contains less than 100 ppm tetrahydroazepine
US7060819B2 · kind B2 · utility
2Cited by
5References
2Claims
0Family size
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Key dates
| Filing date | Sep 15, 2003 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Nov 24, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/84
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for making both ACN and HMD from partial hydrogenation of ADN by using a combination of distillations resulting in the formation of a mixture of HMD and THA that can be hydrogenated to produce a mixture of HMD and HMI that can be separated easily by simple distillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.