Production of formaldehyde in carbon steel reactors
US3965194A · kind A · utility
1Cited by
0References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1973 |
| Grant date | Jun 22, 1976 |
| Priority date | — |
| Expiry date | Oct 19, 1993 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0286
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A carbon steel reactor can be used for producing formaldehyde from methanol by passivating the reactor with respect to formic acid production by treatment with either hydrogen sulfide in the absence of oxygen or a mixture of sulfur dioxide and oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.