Method for preparing acrylic acid from glycerin
US10435347B2 · kind B2 · utility
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13References
7Claims
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Key dates
| Filing date | Dec 15, 2016 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Dec 15, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method for preparing acrylic acid from glycerin. More specifically, the present invention provides a method which can improve the selectivity of acrolein by applying a specific catalyst composition and process conditions to minimize the generation of coke carbon of the catalyst, and can prepare acrylic acid with higher productivity for a longer duration of time because a dehydration reaction can be performed for a longer working period while maintaining catalyst activity at a high level during the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.