Mono-ol from diol and improved citric acid process
US4139556A · kind A · utility
1Cited by
2References
3Claims
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Assignee
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Key dates
| Filing date | Oct 11, 1977 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Oct 11, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/27
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for producing 3-methyl-3-buten-1-ol from 3-methyl-2-pentene-1,5-diol which comprises heating 3-methyl-2-pentene-1,5-diol at a temperature between 200.degree. and 450.degree. C. in the presence of isobutene. According to a preferred embodiment, the heating step and a distillation step to separate 3-methyl-2-pentene-1,5-diol from 3-methylene-1,5-pentanediol is incorporated into a citric acid synthesis method to increase the yield of citric acid from isobutene plus formaldehyde.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.