| METHOD FOR PYROMETALLURGICAL EXTRACTION OF ZINC FROM DUST OF ARC STEEL-MAKING FURNACES | |
| 2023-10-10 | |
| 专利权人 | UNIV URALS (UYUR-C) |
| 申请日期 | 2023-10-10 |
| 专利号 | RU2824119-C1 |
| 成果简介 | NOVELTY - Invention relates to processing of technogenic formations of ferrous metallurgy and can be used for extraction of zinc from dust of arc steel-making furnaces. Method includes chemical analysis of dust of arc steel-making furnaces, mixing of dust of arc steel-making furnaces, solid carbonaceous reducing agent and flux, combined grinding of the mixture, its agglomeration by way of pressing in the form of briquettes, Waelz process of briquettes in a rotary furnace with supply of blast in the form of a steam-air mixture with steam content in mixture of 14–25%. Composition of the flux is determined from the data of chemical analysis of the processed dust with the addition of acidic or basic oxides before mixing the raw mixture to a level which ensures the fulfillment of the ratio (SO3+Cl+F)/(Na2O+K2O)≥1. Steam-air mixture is introduced into the temperature zone of 1,000 °C, the temperature is increased to 1,100 °C and part of the sublimate containing easily sublimable compounds is removed from the furnace. After that, furnace temperature is raised to 1,350 °C and sublimate is extracted. USE - Metallurgy. ADVANTAGE - Method provides higher quality of zinc sublimate at the stage of pyrometallurgical treatment without application of hydrometallurgical processing. 1 cl, 3 tbl |
| IPC 分类号 | C22B-019/38 ; C22B-005/16 ; C22B-007/02 |
| 国家 | 俄罗斯 |
| 专业领域 | 材料科学 |
| 语种 | 英语 |
| 成果类型 | 专利 |
| 文献类型 | 科技成果 |
| 条目标识符 | http://119.78.100.226:8889/handle/3KE4DYBR/20084 |
| 专题 | 中国科学院新疆生态与地理研究所 |
| 作者单位 | UNIV URALS (UYUR-C) |
| 推荐引用方式 GB/T 7714 | EGIAZARYAN D K,KLEONOVSKII M V,MOMYACHENKOV S V,et al. METHOD FOR PYROMETALLURGICAL EXTRACTION OF ZINC FROM DUST OF ARC STEEL-MAKING FURNACES. RU2824119-C1[P]. 2023. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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