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US 2024/0018072 A1Published application
Method for reducing impurities in trifluoroiodomethane process
AssigneeHoneywell International Inc.
InventorsDaniel C. Merkel, Haluk Kopkalli, Haiyou Wang, Terris Yang
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Abstract
The present disclosure provides a process for producing trifluoroiodomethane (CF3I), with a low concentration of methyl propane. Specifically, the present disclosure provides a process for producing trifluoroiodomethane (CF3I) with an amount of methyl propane of 100 ppm or less.
Claims20
A process for producing trifluoroiodomethane (CF3I) with a low concentration of methyl propane, the process comprising:
- providing a first reactant stream comprising hydrogen iodide (HI);
- reacting the first reactant stream with a second reactant stream comprising trifluoroacetyl chloride (TFAC) to produce an intermediate product stream comprising trifluoroacetyl iodide (TFAI);
- purifying the intermediate product stream to remove methyl propane;
- and
- reacting the purified intermediate product stream to produce a final product stream comprising trifluoroiodomethane (CF3I).
2 more elements
A composition comprising:
- at least 99 wt. % of trifluoroiodomethane
- less than 500 ppm chlorotrifluoroethane;
- less than 500 ppm hexafluoroethane;
- less than 500 ppm trifluoromethane;
- less than 100 ppm carbon monoxide;
- less than 100 ppm carbon methyl propane and
- less than 1 ppm hydrogen chloride.
4 more elements
A process for producing trifluoroacetyl iodide (TFAI) with a low concentration of methyl propane, the process comprising:
- providing a first reactant stream comprising a purified stream of hydrogen iodide (HI);
- reacting the first reactant stream with a second reactant stream comprising trifluoroacetyl chloride (TFAC) to produce a final product stream comprising trifluoroacetyl iodide (TFAI).
Dependencies are inferred from the claim text.