What are the quality requirements for hydrogen chloride in PVC?
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I’m a complete amateur, and I’d like to ask some sailors about hydrogen chloride. When we use it to produce organic chlorides such as chlorinated paraffins, a large amount of hydrogen chloride is generated, and this hydrogen chloride often contains some organic substances. I wonder whether such hydrogen chloride gas can be used in the production of PVC If not, what are the main impacts? Are there any good ways to purify hydrogen chloride gas? Participation earns rewards!
The gas needs to have low moisture content, high purity, and low levels of free chlorine; P
It depends on the purity of your hydrogen chloride; it would be best to provide information on the impurity components and their concentrations
First, it is required to be free of free chlorine, and then the components of organic substances are detected. HCl gas is generally transported using PVC pipes, which are not resistant to most organic substances and can cause the pipes to soften.
High and low boiling points, as well as factors such as chlorine content and pH level, are all taken into consideration. I would also like to know the quality standards for VCM used in polymerization
The water content should be low, the temperature relatively low, the purity high (around 94%), and the free chlorine level kept low (below 100 ppm).
For PVC production, hydrogen chloride used must have a purity level of between 92 and 94%, and it must not contain any free chlorine, as this could cause an explosion of vinyl chloride. What are the organic components present in the hydrogen chloride you mentioned? What is the content?