Removal of iron pentacarbonyl from gaseous streams containing carbon monoxide
US4608239A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1985 |
| Grant date | Aug 26, 1986 |
| Priority date | — |
| Expiry date | Dec 6, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B32/40
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for removing iron pentacarbonyl from carbon monoxide feed gas, comprising contacting the gas with a removal agent comprising alkali metal hydroxide in association with a high boiling hydroxylic solvent to form a nonvolatile iron carbonylate salt, and separating the gas from said agent and the salt. Preferably, the removal agent is adsorbed on a porous support such as diatomaceous earth at a concentration of from about 1% to about 40% by weight of the support, and the solvent is selected from one or mixtures of ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 2,2,4-trimethyl-1,3-pentanediol, glycerine, triethanolamine, 1,4-butanediol, 1,2-propanediol, 1,3-butanediol, 2,5-hexanediol, 1-hexanol and 2-hexanol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.