Hydrochloric acid is one of the most basic raw materials in the chemical industry. It has a wide range of uses. It is also widely used in metal cleaning, acidification of oil wells, processing of mineral products, food, textiles and medicine. With the vigorous development of the chlor-alkali industry, in order to match the production capacity of caustic soda, the scale of synthetic hydrochloric acid is also expanding.
In chlor-alkali production enterprises, chlorine and hydrogen are usually used to synthesize hydrogen chloride directly, and hydrochloric acid is produced by absorbing hydrogen chloride with water. In recent years, with the development of impermeable graphite equipment, the synthesis furnace for preparing hydrochloric acid has developed from the initial iron synthesis furnace to "two-in-one" graphite furnace, "three-in-one" graphite furnace and so on. The synthesis mechanism of hydrogen chloride The synthesis reaction of chlorine and hydrogen proceeds very slowly under normal temperature and scattered light, but it is very violent under strong light or high temperature.
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