METHOD FOR PREPARING SINTERED ORE FROM HIGH-GRADE, VANADIUM RICH, CHROMIUM-BEARING VANADIUM-TITANIUM MAGNETITE CONCENTRATE MIXTURE

• Main Authors: ZHANG, Xian feng, ZHANG, Zhi xiang, ZHOU, Sheng cheng, ZHOU, Mi, YAO, Ben jin, JIANG, Tao, CHENG, Gong jin, XUE, Xiang xin, YANG, Song tao, ZHANG, Yong
• Format: Patent
• Language: Chinese; English; French
• Published: 03.01.2019
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MANUFACTURE OF IRON OR STEEL; METALLURGY; METALLURGY OF IRON; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF ALLOYS OR NON-FERROUS METALS

A method for preparing sintered ore from a high-grade, vanadium rich, chromium-bearing vanadium-titanium magnetite (CVTM) concentrate mixture. The method comprises the following steps: (1) preparing high-grade, vanadium rich, CVTM concentrate powder, boron concentrate powder, iron concentrate powder, vanadium-extracted chromium-bearing waste, limestone, flux fines, a fuel, and return fines as raw materials; (2) crushing the fuel, and wetting the return fines with water; (3) preparing water to be mixed; (4) adding the water followed by granulation; (5) distributing a thick material layer for ignition and sintering to form hot sintered ore; (6) crushing and sieving the hot ore, and cooling the part of the ore with a particle size ≥ 5 mm; and (7) spraying a chlorine-containing inhibitor before use in blast furnaces. L'invention concerne un procédé de préparation de minerai fritté à partir d'un mélange de concentré de magnétite de vanadium-titane comportant du chrome (CVTM) riche en vanadium et de qualité élevée.