Method of continuously recovering (meth)acrylic acid
US10287229B2 · kind B2 · utility
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13References
3Claims
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Key dates
| Filing date | Oct 17, 2016 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Oct 17, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D3/322
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of continuously recovering (meth)acrylic acid is provided. The method of continuously recovering (meth)acrylic acid according to the present disclosure enables use of a natural circulation type of reboiler which does not require an operating part in a destructive distillation process of recovering (meth)acrylic acid from a (meth)acrylic acid waste liquid, and therefore, stable operation of the continuous process may be achieved while simplifying equipment configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.