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Corrosion-resistant material for sulfur-containing alkali metal salts and equipment for producing polyarylene sulfide using the same, and polyarylene sulfide and process for producing the same
Corrosion-resistant material for sulfur-containing alkali metal salts and equipment for producing polyarylene sulfide using the same, and polyarylene sulfide and process for producing the same
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机译:用于含硫的碱金属盐的耐腐蚀材料以及使用该材料制造聚芳撑硫醚的设备,聚芳撑硫醚及其制备方法
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摘要
A corrosion-resistant material against sulfur-containing alkali metal salt which comprises high purity metallic chromium having a relative density of 95% or higher and a purity of 99.7% or higher and equipment for production of polyarylene sulfides which is composed of such a corrosion-resistant material, and a polyarylene sulfide containing substantially no heavy metal and a process for producing such a polyarylene sulfide comprising reacting an alkali metal sulfide and a dihalogenated aromatic compound in a polar aprotic solvent by using equipment made of high purity chromium having a purity of 99.7% or higher and having a relative density of 95% or higher at least at parts in contact with a liquid are disclosed.
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