Process for the production of formaldehyde
US10457634B2 · kind B2 · utility
1Cited by
13References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 27, 2018 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Aug 27, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is described for the production of formaldehyde, comprising (a) subjecting methanol to oxidation with air in a formaldehyde production unit thereby producing a formaldehyde-containing stream; (b) separating said formaldehyde-containing stream into a formaldehyde product stream and a formaldehyde vent gas stream; wherein the vent gas stream, optionally after treatment in a vent gas treatment unit, is passed to one or more stages of: (i) synthesis gas generation, (ii) carbon dioxide removal, (iii) methanol synthesis or (iv) urea synthesis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.