用氟氢化铵富集含铁浓缩物

Q3 Environmental Science

Ecology and Industry of Russia Pub Date : 2024-03-06 DOI:10.18412/1816-0395-2024-3-22-26

L. Delitsyn, R. Kulumbegov, N. N. Klimenko, O. Popel, M. Sulman, V.A. Sinelschikov, G.A. Sychev, K.S. Petropavlovsky

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引用次数: 0

摘要

证明了利用燃煤发电厂的灰渣废料获得优质含铁精矿（FC）的合理性。采用湿法磁选 TPP 灰渣废料的方法，提取的 FC 中 Fe2O3 含量为 59.2%。实验证明，用氢氟酸铵进行化学富集的方法可将 FC 中的 Fe2O3 含量提高到 79%；FC 与 NH4F-HF 反应的副产品是高质量的无定形二氧化硅（白烟）。在铁氧化物的相组成几乎保持不变的情况下，研究了工艺温度对所得 FC 组成的影响。提出了最佳工艺模式。

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Enrichment of Iron-containing Concentrate with Ammonium Hydrofluoride

The rationality of using ash and slag waste from coal-fired TPP to obtain high-quality iron-containing concentrate (FC) is demonstrated. Using the method of wet magnetic separation of ash and slag waste from TPP, FC is extracted with Fe2O3 content of 59.2 %. It has been established that the method of chemical enrichment with ammonium hydrofluoride can increase the Fe2O3 content in FC to 79 %; a by-product of the reaction between FC and NH4F•HF is high-quality amorphous silica (white soot). The effect of process temperature on the composition of the resulting FC has been studied, at that the phase composition of iron oxides remains virtually unchanged. Optimal modes of the process are proposed.

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来源期刊

Ecology and Industry of Russia Environmental Science-Ecology

CiteScore

1.00

自引率

0.00%

发文量

101

期刊介绍： The Journal "Ekologia i promyshlennost Rossii" («Ecology and Industry of Russia») is aimed to promote acquaintance of the world scientific and technical public and specialists, interested in the problems of the environment protection, with advanced achievements of the science and engineering practice on securing of stable (self-supporting) evolution within the limits of the United Nations accepted recommendations (RIO 92 and RIO+20). A circle of papers includes basic researches and engineering decisions, analytical and methodical operations, reviews on journal subjects. The journal lays special emphasis on methodical elaborations, analytical investigations in the sphere of creating the ecological culture of the population, to the features of ecological education in higher schools of the country for the sake of actualization in specialists'' consciousness of the scientific necessity to know environmental problems of the modern civilization and paths of their settlement. Original papers and investigations of scientists and specialists on separate themes occupy an independent niche of issues under the «Cover story» heading. The journal task is to promote practical implementation of scientific and engineering decisions in the field of decrease of anthropogenic load on the biosphere and environment protection (open lectures, round tables, discussions and so forth). Ecology and Industry of Russia is an informational reference book about the newest developments of the Russian and foreign scientists and the companies realized in Russia, the CIS and Baltic countries, and far-abroad countries. The journal publishes information reports about holding in Russia and abroad the international, all-Russian and regional congresses, conferences, and symposiums related to the journal subjects.