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Preparation of Metallized Pellets by Pre-reduction of Titanium Concentrate and Their Compressive Strength Properties
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Baobao LIU1, Zhonghui PENG2, Dongsheng HE1, Bo ZHANG2, Changmiao LIU2, Qiu YANG1, Yuan TANG1
Mining and Metallurgical Engineering | 2026, 46(3) : 226 - 231
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Mining and Metallurgical Engineering | 2026, 46(3): 226-231
• METALLURGY •
Preparation of Metallized Pellets by Pre-reduction of Titanium Concentrate and Their Compressive Strength Properties
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Baobao LIU1, Zhonghui PENG2, Dongsheng HE1, Bo ZHANG2, Changmiao LIU2, Qiu YANG1, Yuan TANG1
Affiliations
  • 1.School of Resources and Safety Engineering, Wuhan Institute of Technology, Wuhan 430073, Hubei, China
  • 2.Longbai Sichuan Mining & Metallurgy Co., Ltd., Panzhihua 617100, Sichuan, China
doi: 10.3969/j.issn.0253-6099.2026.03.034
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An experimental study was conducted on preparation of metallized pellets by agglomeration and pre-reduction of titanium concentrate, for investigating the effects of carbon particle size, carbon dosage, roasting temperature and roasting time on the compressive strength and metallization rate of the pellets. The results show that the raw material is mainly composed of ilmenite with a small amount of magnetite, in which the size fraction of -69 μm accounts for approximately 91.39%, indicating that the material is fine-grained, and has favorable pelletizing performance. It is found that with carbon particle size of-1 mm (unclassified) and addition of carbon at 10%, both the green and fired pellets meet the process requirements in terms of compressive strength. On this basis, after roasting and reduction at 1 200 ℃ in a vacuum furnace for 30 min, qualified pellets with compressive strength of 1 224.60 N/P and a metallization rate of 50.48% can be obtained, which can meet the raw material requirements of electric furnace smelting and separation process. Within the experimental range, appropriately increasing the roasting temperature, prolonging the roasting time, and increasing the carbon addition are all beneficial to improving the metallization rate of pellets.

titanium concentrate  /  metallized pellets  /  pre-reduction  /  compressive strength  /  metallization rate
刘宝宝, 彭忠辉, 何东升, 张博, 刘长淼, 杨丘, 唐远. 钛精矿预还原制备金属化球团及其抗压性能研究. 矿冶工程杂志, 2026 , 46 (3) : 226 -231 . DOI: 10.3969/j.issn.0253-6099.2026.03.034
Baobao LIU, Zhonghui PENG, Dongsheng HE, Bo ZHANG, Changmiao LIU, Qiu YANG, Yuan TANG. Preparation of Metallized Pellets by Pre-reduction of Titanium Concentrate and Their Compressive Strength Properties[J]. Mining and Metallurgical Engineering, 2026 , 46 (3) : 226 -231 . DOI: 10.3969/j.issn.0253-6099.2026.03.034
Appendix
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Year 2026 volume 46 Issue 3
86
15
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Article Info
doi: 10.3969/j.issn.0253-6099.2026.03.034
  • Receive Date：2025-12-25
  • Online Date：2026-10-08
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  • Received：2025-12-25
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Affiliations
    1.School of Resources and Safety Engineering, Wuhan Institute of Technology, Wuhan 430073, Hubei, China
    2.Longbai Sichuan Mining & Metallurgy Co., Ltd., Panzhihua 617100, Sichuan, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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