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1964年6月,美国Republic钢鉄公司Gadsden厂盐酸酸洗机组及其废酸连续回收装置投产了。此机组采用了奥地利的塔式盐酸酸洗装置和英国的废酸连续回收系统。众所周知,用盐酸酸洗的钢材比用硫酸酸洗的清洁,并且能达到较高的生产率。但是,盐酸的价格昂贵,具有很大的腐蚀性,并且以前回收废酸液也没有完全成功。虽然上述的一些缺点使盐酸酸洗法在工业上的应用受到一定的限制,但它的优点还
June 1964, the United States Steel Corporation Gadsden plant hydrochloric acid pickling unit and its waste acid continuous recovery unit put into operation. This unit uses the Austrian tower hydrochloric acid pickling plant and the British waste acid continuous recovery system. It is well known that steel pickled with hydrochloric acid is cleaner than pickled with sulfuric acid and achieves higher productivity. However, hydrochloric acid is expensive, highly corrosive, and has not been completely successful in the recovery of used acid. Although some of the above shortcomings make hydrochloric acid pickling in industrial applications subject to some restrictions, but its advantages