Method for separating and purifying 1,4-diaminobutane from fermented solution
US8927774B2 · kind B2 · utility
2Cited by
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19Claims
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Key dates
| Filing date | Aug 24, 2012 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Aug 24, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P13/001
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method for separating and purifying 1,4-diaminobutane at high purity and high yield from a fermented solution comprising 1,4-diaminobutane, through cell mass removement, desalination, concentration, impurities removal, and recovery. Also, provided is a method for separating and purifying 1,4-diaminobutane at high purity and high yield from a fermented solution 1,4-diaminobutane, through cell mass removement, desalination, low-temperature concentration, crystallization, filtration, high-temperature concentration and distillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.