Question: Selection of pipes and condensers
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Carbon tetrachloride is used as the solvent, at a temperature of 100–110 degrees and a pressure of 0.2–0.3 Mpa; chlorine gas is introduced, resulting in the formation of hydrogen chloride. The carbon tetrachloride is recycled after passing through a gas-liquid separator, while the hydrogen chloride is sent for absorption. Is graphite suitable for use in condensers? Can the resin used inside withstand carbon tetrachloride and chlorine? Should the pipes be lined with PTFE or Hastelloy? What material should be used for the gas-liquid separator? And if observation is required, what grade of glass should be used?
Carbon tetrachloride produces phosgene at high temperatures: funk: It’s highly toxic!
Ugh, I’m in charge of equipment selection. Boss, it’s not about choosing a solvent.
Impregnated phenolic resin graphite is not resistant to high concentrations of chlorine; only impregnation with polytetrafluoroethylene can provide such resistance
Carbon tetrachloride does not corrode phenolic resin, but chlorine has strong oxidizing properties, and phenolic resin cannot tolerate it
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