Process for producing carbonyl fluoride
View Patent ↗The process for producing carbonyl fluoride according to the invention is a process for safely and easily producing high-purity carbonyl fluoride having a low content of carbon tetrafluoride, and comprises feeding carbon monoxide and fluorine to a reactor and allowing carbon monoxide to react with fluorine under the conditions of a reactor internal pressure of less than atmospheric pressure.
1. A process for producing carbonyl fluoride, comprising feeding carbon monoxide and fluorine to a reactor and allowing carbon monoxide to react with fluorine under the conditions of a reactor internal pressure of less than atmospheric pressure.
2. A process for producing carbonyl fluoride, comprising feeding carbon monoxide and fluorine to a reactor in a molar ratio (CO/F 2 ) of not less than 1.0 to allow carbon monoxide to react with fluorine.
3. A process for producing carbonyl fluoride, comprising previously mixing fluorine with nitrogen and feeding carbon monoxide and the mixed gas of fluorine and nitrogen to a reactor in a molar ratio of carbon monoxide to fluorine (CO/F 2 ) of not less than 1.0 to allow carbon monoxide to react with fluorine.
4. A process for producing carbonyl fluoride, comprising:
(I) a reaction step of feeding at least carbon monoxide and fluorine to a reactor to allow carbon monoxide to react with fluorine, and
(II) a purification step of purifying crude carbonyl fluoride obtained in the reaction step (I),
wherein the crude carbonyl fluoride contains at least fluorine, and the purification step (II) is a step of purifying the carbonyl fluoride by mixing the crude carbonyl fluoride with a compound (A) which is reactive to fluorine but inactive to carbonyl fluoride to form a reaction product (a) of fluorine and the compound (A) and removing the reaction product (a).
5. The process for producing carbonyl fluoride as claimed in claim 4 , wherein carbon monoxide is allowed to react with fluorine under the conditions of a reactor internal pressure of less than atmospheric pressure.
6. The process for producing carbonyl fluoride as claimed in claim 1 , wherein carbon monoxide and fluorine are fed to a reactor in a molar ratio (CO/F 2 ) of not less than 1.0.
7. The process for producing carbonyl fluoride as claimed in claim 1 , wherein fluorine is previously mixed with nitrogen, and carbon monoxide and the mixed gas of fluorine and nitrogen are fed to a reactor.
8. The process for producing carbonyl fluoride as claimed in claim 3 , wherein the mixing molar ratio of fluorine to nitrogen (F 2 /N 2 ) is not more than 1.5.
9. The process for producing carbonyl fluoride as claimed in claim 1 , wherein the temperature inside the reactor is not higher than the endurable temperature of the reactor.
10. The process for producing carbonyl fluoride as claimed in claim 1 , wherein the yield of carbonyl fluoride is not less than 95% by mol.
11. The process for producing carbonyl fluoride as claimed in a claim 1 , wherein the reaction selectivity of carbon tetrafluoride is not more than 2.0% by mol.
12. The process for producing carbonyl fluoride as claimed in claim 4 , wherein carbon monoxide and fluorine and fed to a reactor in a molar ratio (CO/F 2 ) of not less than 1.0.
13. The process for producing carbonyl fluoride as claimed in claim 4 , wherein fluorine is previously mixed with nitrogen, and carbon monoxide and the mixed gas of fluorine and nitrogen are fed to a rector.
14. The process for producing carbonyl fluoride as claimed in claim 5 , wherein fluorine is previously mixed with nitrogen, and carbon monoxide and the mixed gas of fluorine and nitrogen are fed to a rector.
15. The process for producing carbonyl fluoride as claimed in claim 7 , wherein the mixing molar ratio of fluorine to nitrogen (F 2 /N 2 ) is not more than 1.5.
16. The process for producing carbonyl fluoride as claimed in claim 2 , wherein the temperature inside the reactor is not higher than the endurable temperature of the reactor.
17. The process for producing carbonyl fluoride as claimed in claim 3 , wherein the temperature inside the reactor is not higher than the endurable temperature of the reactor.
18. The process for producing carbonyl fluoride as claimed in claim 4 , wherein the temperature inside the reactor is not higher than the endurable temperature of the reactor.
19. The process for producing carbonyl fluoride as claimed in claim 2 , wherein the yield of carbonyl fluoride is not less than 95% by mol.
20. The process for producing carbonyl fluoride as claimed in claim 3 , wherein the yield of carbonyl fluoride is not less than 95% by mol.
21. The process for producing carbonyl fluoride as claimed in claim 4 , wherein the yield of carbonyl fluoride is not less than 95% by mol.
22. The process for producing carbonyl fluoride as claimed in claim 2 , wherein the reaction selectivity of carbon tetrafluoride is not more than 2.0% by mol.
23. The process for producing carbonyl fluoride as claimed in claim 3 , wherein the reaction selectivity of carbon tetrafluoride is not more than 2.0% by mol.