The reutilization of water, tail gas and carbide slag in PVC production by calcium carbide method, and service condition of super low content mercuric chloride catalyst were introduced.
介绍了电石法聚氯乙烯生产过程中水、尾气和电石渣的循环利用及超低含量氯化汞触媒的使用情况。
The content of reducing sugar, K, Fe, Mn, Cu and Zn were higher, but that of nicotine, chloride ion and Mg were low in tobacco leaf.
烟叶还原糖、钾、铁、锰、铜和锌含量较高，烟叶尼古丁、氯离子和镁含量偏低。
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