2. Manufacturing processes
2.1 Process principles
Fluoroalkanes are generally obtained by fluorinating the corresponding chlorine derivative with anhydrous hydrofluoric acid.
Fluoridation is carried out either in the liquid phase or in the vapour phase.
Liquid-phase reactions are most frequently catalyzed by antimony chlorides. Some reactions may use other Lewis acids, such as tin, titanium or tantalum salts.
Gas-phase reactions are generally catalyzed by chromium salts.
The resulting fluorinated compound is more volatile than the original chlorinated raw material. The reaction is followed by a series of conventional unit operations aimed at :
to recycle unprocessed...
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Manufacturing processes
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"Unit operations. Chemical reaction engineering"
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Economic data
Figure 1 illustrates the trends in worldwide production of fluoroalkanes, as reconstituted by the Alternative Fluorocarbons Environmental Acceptability Study (AFEAS): these are based on data reported by the manufacturing companies that responded to the...
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