Invention Grant
- Patent Title: Catalytic production processes for making tetrafluoropropenes and pentafluoropropenes
- Patent Title (中): 用于制备四氟丙烯和五氟丙烯的催化生产方法
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Application No.: US13152405Application Date: 2011-06-03
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Publication No.: US08148586B2Publication Date: 2012-04-03
- Inventor: Mario Joseph Nappa , Velliyur Nott Mallikarjuna Rao
- Applicant: Mario Joseph Nappa , Velliyur Nott Mallikarjuna Rao
- Applicant Address: US DE Wilmington
- Assignee: E. I. du Pont de Nemours and Company
- Current Assignee: E. I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: C07C17/25
- IPC: C07C17/25
Abstract:
A process is disclosed for making CF3CF═CHF. The process involves contacting at least one hexafluoropropane selected from the group consisting of CF3CF2CH2F and CF3CHFCHF2 with a chromium oxyfluoride catalyst in a reactor to obtain a product mixture comprising CF3CF═CHF, and recovering CF3CF═CHF from the product mixture.A process is disclosed for making CF3CH═CHF. The process involves contacting CF3CH2CHF2 with a chromium oxyfluoride catalyst in a reactor to obtain a product mixture comprising CF3CH═CHF, and recovering CF3CH═CHF from the product mixture.A process is disclosed for making CF3CF═CH2. The process involves contacting CF3CF2CH3 with a chromium oxyfluoride catalyst in a reactor to obtain a product mixture comprising CF3CF═CH2, and recovering CF3CF═CH2 from the product mixture.
Public/Granted literature
- US20110237845A1 Catalytic Production Processes for Making Tetrafluoropropenes and Pentafluoropropenes Public/Granted day:2011-09-29
Information query
