Production process of Freon

This post was last edited by tclvjian on 2012-3-24 at 16:38. Substitution method – mainly used in the production of R-11, R-12, R-22, R-21, R-13, R-113, and R-114, among others. There are two methods for this process: the liquid-phase method and the gas-phase method. ① The liquid-phase method is more mature, allows for easier temperature control, and produces fewer by-products; it is therefore the main method used in industry. The antimony halide catalyst used also has a long service life (about 1–2 years, with regeneration and replenishment required every 2–3 months). Different reaction temperatures (generally 45–200°C) and pressures (up to 3.5 MPa) are employed depending on the raw materials and the desired product, in order to facilitate the reaction to proceed in a homogeneous state. Different chlorohydrocarbon starting materials can be used to produce various fluorine compounds; for example, using carbon tetrachloride as a starting material, R-11 and R-12 can be manufactured ； Using trichloromethane as a raw material, R-22 can be produced ； R-113 and R-114 can be produced using tetrachloroethylene as a raw material. The reaction products generally require post-treatment processes such as washing with water, alkaline washing, drying, compression, and distillation to obtain a pure product. ②The gas-phase method uses a fixed-bed or fluidized-bed reactor equipped with catalysts of aluminum fluoride, chromium fluoride, and chromium oxyfluoride, and the post-treatment is similar to that of the liquid-phase method. Methane fluorochlorination method: Methane, chlorine, and hydrogen fluoride are used as raw materials to synthesize chlorofluoromethane in one step in the presence of a catalyst. The reaction products mainly consist of R-11, R-12, fluorides with higher boiling points, and hydrogen chloride. Some of the fluorine compounds are recycled through a stripping tower, while the remaining gas enters a hydrogen chloride distillation tower. After hydrogen chloride is removed, the gas undergoes washing, neutralization, drying, and distillation to yield the finished products R-11 and R-12. The catalyst used is a metal fluoride or chloride, with activated carbon, aluminum sulfate, or barium carbonate as the carrier. The reaction temperature is 370–470°C, and the contact time is approximately 4–10 seconds. The reaction yield is 96%–99% based on methane; 97% based on chlorine; and 94% based on fluorine. The advantage of this process is its relatively simple manufacturing procedure and high product purity.

These details can be found on the internet; I would like to know the specific procedures and equipment involved

You should specify which type of Freon’s production process you are interested in learning about. Our company produces R22, R32, 134a, 141b, and many other types; we can discuss this further

The products mentioned on the second floor—R-11, R-12, R-22, R-21, R-13, R-113, and R-114—have all had their production banned or restricted; even R-22 is only allowed to be produced as an intermediate in chemical manufacturing. There’s too much to cover regarding Freon; if there’s anything specific the original poster would like to know, they can ask, and we can discuss it together!

We only produce R22! We can communicate! But things are developing too fast now! There are many alternatives!