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Isopure

IsopureTM, a process developed by Axens, produces very high purity isobutene. This process uses reactive distillation combined with hydroisomerization of 1-butene to 2-butenes. This concept eliminates the equilibrium limitations of conventional processes that convert 1-butene to 2-butene.

The product quality corresponds to polymer grade. The main advantages of this process can be summarized as follows:

  • Mild operating conditions
  • Carbon steel equipment
  • No environmental problems
  • No need for other processes such as MTBE and dehydrogenation
  • No need for chemicals such as sulfuric acid used in sulfuric acid extraction units
  • No need for methanol as used in MTBE cracking processes

 

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