Process for separating aqueous formaldehyde mixtures
US4067805A · kind A · utility
29Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1976 |
| Grant date | Jan 10, 1978 |
| Priority date | — |
| Expiry date | Jan 5, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/786
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process for the separation of water from mixtures of water and formaldehyde, by contacting the mixtures against an organic polymeric membrane, and withdrawing at the other side of the membrane a mixture having a higher concentration of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.