|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||C07C-017/383 C07C-017/00 C07C-017/38 C07C-017/386 C07C-017/395 C07C-017/389|
|미국특허분류(USC)||570/178; 570/177; 570/179; 570/180|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 0 인용 특허 : 43|
Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include processes for the production of CFC-217ba and HFC-227ea. Particular embodiments of the present invention provide separation techniques for the separation of chlorofluorocarbons from HF, from other chlorofluorocarbons, and the separation of isomers of halogenated compounds....
What is claimed is: 1. A process for purifying CF3CFHCF3 comprising distilling a mixture comprising CF3CFHCF3, CF3CF2CF2H, and at least one chlorofluorocarbon to form a solution comprising CF3CFHCF 3. 2. The process of claim 1 wherein the at least one chlorofluorocarbon comprises C3ClF7. 3. The process of claim 1 wherein the mixture comprises a mole ratio of the chlorofluorocarbon to the CF3CFHCF3 of from about 0.1 to about 10. 4. The process of claim 3 wherein the mixture comprises a mole ratio of the chlorofluorocarbon to the CF3CFHCF3 of at ...