Continuous method for manufacturing betaine aqueous solution
US8766000B2 · kind B2 · utility
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2References
24Claims
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Key dates
| Filing date | Mar 23, 2011 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Mar 23, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00094
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a method for continuously preparing a betaine aqueous solution, including the reaction of an amine with an ω-halocarboxylic acid, in the presence of water and a base. Said method is characterized in that it is carried out in a device consisting of at least two consecutive reactors (R1) and (R2), the reactor (R2) being a tubular reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.