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硫酸是一种产量最大的化工产品,它直接或简接地几乎用于所有各工业部门,是国民经济中必不可少的东西。硫酸的耗用量,象钢铁和电力一样可以用来作为判断国民经济发展水平的尺码。硫酸的主要用途是生产盐酸和其他化工产品,如制造化肥、染料、药品、色素、炸药、合成洗涤剂、人造丝和其他化学纤维等,另外还用于石油的精炼、蓄电池、钢和其他金属材料的酸洗、金属的冶炼和提纯以及生产合成酒精和合成橡胶等等。由于硫酸的强烈腐蚀性,使生产硫酸和使用硫酸的设备造成了严重的腐蚀。为了防止或减轻这种腐蚀,保证生产的顺利进行,各种硫酸设备的材料必须根据硫酸的腐蚀特性以及各种材料的耐蚀性能进行正确的选择和合理的使用。
Sulfuric acid is a chemical product with the largest output. It is used directly or simply in almost all industrial sectors and is indispensable in the national economy. The consumption of sulfuric acid, like steel and electricity, can be used as a yardstick for judging the level of development of the national economy. The main use of sulfuric acid is the production of hydrochloric acid and other chemical products such as fertilizers, dyes, pharmaceuticals, pigments, explosives, synthetic detergents, rayon and other chemical fibers. It is also used in the refining of petroleum, batteries, steel and other metals Pickling of materials, smelting and purification of metals and the production of synthetic alcohols and elastomers. Due to the strong corrosiveness of sulfuric acid, the production of sulfuric acid and the use of sulfuric acid equipment caused serious corrosion. In order to prevent or reduce such corrosion, to ensure the smooth progress of production, all kinds of sulfuric acid plant materials must be based on the corrosion of sulfuric acid and corrosion resistance of various materials, the right choice and reasonable use.