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六十年代以来,随着黄钾铁钒法、针铁矿法等方法的出现,国外炼锌厂相继采用了高温高酸浸出新工艺。这个新工艺对于完善湿法炼锌流程,提高锌及其它有价金属的提取率都是十分有利的。我国冶金工作者也在这方面作了很多工作,并在黄钾铁钒法和针铁矿法等几种除铁方法上发表了大量的意见。近几年来我们就炼锌工业中出现的新技术做了一些资料分析、研究工作,深深感到:根据我国实际情况,炼锌工业中大量使用钠、氨等化工原料的黄钾铁钒法是不符合我国国情的,而针铁矿法则要把铁往返还原、氧化,工序复杂,操作难度
Since the 1960s, with the emergence of such methods as the yellow-potassium iron-vanadium method and the goethite method, foreign zinc smelters have successively adopted the new technology of high-temperature and high-acid leaching. This new process is very beneficial for improving the wet zinc smelting process and increasing the extraction rate of zinc and other valuable metals. China’s metallurgical workers also made a lot of work in this regard, and gave a great deal of opinions on several iron-removing methods such as the yellow-potassium iron-vanadium method and the goethite method. In recent years, we have made some data analysis and research work on new technologies emerging in zinc smelting industry. We deeply feel that according to the actual situation in our country, the potassium-potassium iron-vanadium method that makes extensive use of chemical raw materials such as sodium and ammonia in the smelting industry is Not in line with China’s national conditions, and goethite iron ore law to and from the restoration, oxidation, process complexity, operational difficulty