Process for preparation of carbonyl sulfide
US4224300A · kind A · utility
3Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1979 |
| Grant date | Sep 23, 1980 |
| Priority date | — |
| Expiry date | Aug 22, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B32/77
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Carbon monoxide is reacted with sulfur in the vapor phase at 250.degree.-650.degree. C. to prepare carbonyl sulfide, wherein a reactor is used, in which at least the inner surface is made of an alloy consisting essentially of, based on the weight of the alloy, 20-60% of Cr, 40-65% of Ni, 0-10% of Mo, 0-4% of Nb+Ta, and 0-3% of Fe. The reactor not only possesses good corrosion resistance to the gaseous reaction mixture, but also minimizes the reduction in the purity of carbonyl sulfide produced, which reduction occurs with the lapse of operation time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.