Hydrochloric acid deep-lysis boiling breaker

2022-09-06View Original

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Due to reasons such as acid-water azeotropy, hydrochloric acid is generally obtained at a concentration of around 19% through distillation. To achieve a lower concentration of acid, it is necessary to add an anti-azeotrope to break this azeotropic system. Industrially, calcium chloride is commonly used as such an anti-azeotrope; however, its solubility changes significantly with temperature, which can easily lead to pipe blockages. If calcium chloride is not used, could magnesium chloride or zinc chloride be used instead? (Because the boiling point depressant is recycled within the system, we do not consider cost factors.)

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Hydrochloric acid deep-lysis boiling breaker

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