Method and apparatus for producing mono-lower-alkylmonoalkanolamine
US7977513B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 6, 2007 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Jan 8, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C213/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An amine producing apparatus includes a reactor that reacts a mono-lower-alkylamine and an alkylene oxide, an unreacted-raw-material-recovery distillation column that separates unreacted raw materials by distillation from a product including unreacted raw materials obtained in the reactor, a non-aqueous distillation column that removes water and a light component by a distillation method from a reactive product from which unreacted raw material have been separated, and a purification and distillation column that separates by distillation a desired reactive product (mono-lower-alkylmonoalkanolamine) and residue (mono-lower-alkyldialkanolamine which is a dimer) from a reactive product from which the water and the light component have been removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.