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前言合成氨生产中使用的醋酸铜氨液(以下简称铜氨液),在吸收和再生过程中,由于各种原因,逐渐产生难溶或微溶化合物,并陆续沉积下来,严重时堵塞管道,影响生产,我厂曾因此停过车。据了解,其它一些小氮肥厂也有此类问题,不过程度不同罢了。为了查明原因,降低铜耗,确有必要搞清沉淀物的组成。从我们历次分析结果看,此类沉淀多为高、低价铜的硫化物或氧化物。也有少量高、低价铁化物。
Introduction Ammonia acetate used in the production of ammonia ammonia (hereinafter referred to as copper ammonia solution), in the absorption and regeneration process, due to various reasons, the gradual generation of insoluble or slightly soluble compounds, and gradually deposited, blocked the pipeline in serious cases, the impact Production, our factory had stopped the car. It is understood that other small nitrogenous fertilizer plant also have such problems, but to varying degrees. In order to find out the reason and reduce the copper consumption, it is really necessary to find out the composition of sediment. From our previous analysis of the results, such deposits are mostly high, low-cost copper sulfide or oxide. There are also a small amount of high and low iron.