This process had some advantages, such as high yield, high product quality, low cost and no large amounts of waste sulfuric acid.

此种方法合成四氯苯酐具有产品产率高、质量好、成本低且不产生大量废硫酸的优点。

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The remained waste sulfuric acid was vapor distilled to reduce the chloral content so that it could be utilized in fertilizers product.

所余废硫酸再经过水蒸气蒸馏处理使其中三氯乙醛含量降低到一定标准后可用于农肥生产。

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A new process for producing polymeric iron sulfate, a new high efficient coagulant, directly from waste sulfuric acid solution is introduced.

介绍了一种用硫酸废液直接生产新型高效混凝剂——聚合硫酸铁的新工艺。

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