Method of preparing pentafluoroethane
A manufacturing method and technology of pentafluoroethane, applied in the direction of halogen substitution preparation, organic chemistry, etc., can solve the problems of low conversion rate of HCFC-133a and low selectivity of HCFC-123, achieve reduced catalyst poisoning, high catalyst activity, and reduced replacement or the effect of regeneration frequency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0081] Example
[0082] The reaction steps (a) and (b) in the production method of the present invention were tested.
[0083] (Test 1) Reaction step (b) (First reaction step)
[0084] A tubular nickel reaction tube with an inner diameter of 2 mm and a length of 12.1 m was maintained under the conditions of approximately 0.6 MPa and various temperatures shown in Table 1. HCFC-133a and Cl which are preheated to about 200℃ at 180cc / min and 30cc / min respectively 2 Flow into the above reaction tube.
[0085] The reaction product (gas mixture) coming out of the reaction tube is washed with a dilute alkali aqueous solution warmed to 70°C in advance to remove HCl and Cl 2 . The composition of the mixture thus obtained was analyzed by a hydrogen flame ionization detector (FID) by gas chromatography to obtain the conversion rate of HCFC-133a, the selectivity of HCFC-123 to CFC-113a, and the HCFC-1326 in the mixture concentration. In addition, the selectivity of HCFC-123 to CFC-113a is calc...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap