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Removal of phosgene from an essentially anhydrous gas stream

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专利汇可以提供Removal of phosgene from an essentially anhydrous gas stream专利检索,专利查询,专利分析的服务。并且A method for removing phosgene from an essentially anhydrous gas stream which involves contacting such a stream with activated alumina at a temperature of from 110*C to 200*C under essentially anhydrous conditions. This method is particularly useful in removing phosgene from chlorinated hydrocarbon gas streams also containing acid gas impurities.,下面是Removal of phosgene from an essentially anhydrous gas stream专利的具体信息内容。

  • 2. The method of claim 1 wherein the anhydrous gas stream is chlorinated hydrocarbon gas stream also containing an acid gas.
  • 3. The method of claim 1 wherein the anhydrous gas stream is a methyl-chloride gas stream containing hydrogen chloride and phosgene.
  • 4. The method of claim 1 wherein the activated alumina is made by heating Al2O3.H2O to at least about 300*C to remove at least a part of the water of crystallization to reorient the crystalline structure to produce gamma alumina.
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