论文部分内容阅读
当你看到“细菌冶金”这个名词时,可能会问:一些肉眼看不见的微小细菌,怎么能与金属冶炼联系起来呢?一些有生命的有机体又怎样跟无生命的矿石和金属发生关系呢? 多年以前,有人发现旧铜矿山的废矿水,流过废矿石堆时,很快地把矿石中的金属铜溶浸出来,加入一些废铁屑,就会有亮晶晶的铜粉置换沉淀出来。这到底是怎么一会事呢?经过分析和研究,发现这原来是细菌“干”的。在矿水中有一种“硫氧化菌”,它能够使矿石中的金属硫化物发生氧化,例如能把黄铁矿氧化成硫酸和硫酸高铁,而硫酸和硫酸高铁则是湿法冶金中常用的一种浸取剂,利用这种浸取剂就可以将矿石中一些酸溶性的金
When you look at the term “bacterial metallurgy,” you may ask: How can tiny microscopic bacteria that are invisible to the naked eye link up with metal smelting? How do some living organisms relate to inanimate ores and metals? Many years ago, it was discovered that when the waste ore water from old copper mines passed through the waste ore heap, it quickly soaked out the metal copper in the ore and added some scrap iron scrap, and there would be a shiny copper powder replacement precipitate. come out. In the end, what happened in the end? After analysis and research, it was found that the original bacteria were “dry”. There is a “sulfur-oxidizing bacterium” in mineral water that can oxidize metal sulfides in ore, such as oxidizing pyrite into sulfuric acid and high-iron sulfate, and sulfuric acid and sulfuric acid high-speed iron are commonly used in hydrometallurgy. A leaching agent that uses this leaching agent to dissolve some of the acid-soluble gold in the ore