Comprehensive utilization method of high-silicon iron tailings

• Main Authors: ZHANG JIAHAO, LI XIAOHUI, HUANG WEIYU, GU XIAOWEI, GUO SHIHAO, WANG WENXING, LI ANG
• Format: Patent
• Language: Chinese; English
• Published: 17.06.2022
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ARTIFICIAL STONE; BEER; BIOCHEMISTRY; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DISPOSAL OF SOLID WASTE; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; LIME, MAGNESIA; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PROCESSES USING MICROORGANISMS; RECLAMATION OF CONTAMINED SOIL SOIL; REFRACTORIES; SLAG; SPIRITS; TRANSPORTING; TREATMENT OF NATURAL STONE; VINEGAR; WINE

The invention provides a comprehensive utilization method of high-silicon iron tailings, and belongs to the technical field of resource utilization of industrial solid wastes. According to the comprehensive utilization method of the high-silicon iron tailings, the high-silicon iron tailings are biologically leached through the mixed flora with the iron dissolving and desilicication functions, iron is secondarily recycled, a leaching solution can be recycled, meanwhile, the chemical reaction activity of leaching residues can be effectively improved, the leaching residues can serve as an active admixture to be used for preparing an iron tailing-based cementing material, and the comprehensive utilization rate of the high-silicon iron tailings is improved. The invention aims to realize the comprehensive utilization of the high-silicon iron tailings. 本发明提供了一种高硅型铁尾矿综合利用方法，属于工业固体废弃物资源化利用技术领域。该高硅型铁尾矿综合利用方法，利用具有解铁脱硅功能的混合菌群对高硅型铁尾矿进行生物浸出，二次回收铁，浸出液可循环使用，同时能够有效提高浸出残渣的化学反应活性，可作为活性掺和料用于制备铁尾矿基胶凝材料，目的是实现对高硅型铁尾矿的综合利用。