Study on the granulation of sub-millimeter fine-grade artificial rutile with high-speed stirring

REN Yuqiao; CHEN Feng; YE Endong; GUO Yufeng; ZHANG Meng; WANG Shuai; YANG Lingzhi

doi:10.7513/j.issn.1004-7638.2025.02.012

Volume 46 Issue 2

May 2025

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REN Yuqiao, CHEN Feng, YE Endong, GUO Yufeng, ZHANG Meng, WANG Shuai, YANG Lingzhi. Study on the granulation of sub-millimeter fine-grade artificial rutile with high-speed stirring[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(2): 83-89. doi: 10.7513/j.issn.1004-7638.2025.02.012

Citation:

REN Yuqiao, CHEN Feng, YE Endong, GUO Yufeng, ZHANG Meng, WANG Shuai, YANG Lingzhi. Study on the granulation of sub-millimeter fine-grade artificial rutile with high-speed stirring[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(2): 83-89. doi: 10.7513/j.issn.1004-7638.2025.02.012

Citation:

REN Yuqiao, CHEN Feng, YE Endong, GUO Yufeng, ZHANG Meng, WANG Shuai, YANG Lingzhi. Study on the granulation of sub-millimeter fine-grade artificial rutile with high-speed stirring[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(2): 83-89. doi: 10.7513/j.issn.1004-7638.2025.02.012

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Study on the granulation of sub-millimeter fine-grade artificial rutile with high-speed stirring

doi: 10.7513/j.issn.1004-7638.2025.02.012

1.
School of Resource Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China
2.
State Key Laboratory of Comprehensive Utilization of Vanadium and Titanium Resources, Panzhihua 617000, Sichuan, China

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Received Date: 2024-06-21
Available Online: 2025-04-30
Publish Date: 2025-04-30

Abstract

Abstract

The high-speed stirring process of sub-millimeter fine-grained artificial rutile was studied in this paper. Through testing and comparison, the optimal granulation conditions were determined as follows: NA as an additive, 1.5% NA addition, 20% moisture content, a mixing speed of 300 r/min and 600 r/min for 3 and 5 minutes, respectively, and a cutting knife speed of 600 r/min. The resulting granulated products had particle sizes ranging from 0.097 mm to 0.45 mm, with particles smaller than 0.097 mm comprising less than 15% of the total. The strength of the granulated products was assessed, revealing wear indices of 8.54% after drying and 4.40% after heat treatment at
1000
°C, indicating a significant improvement in granule strength after heat treatment. The pelletized product maintained its structural integrity in a fluidized chlorination environment. After 30 min of chlorination, the residual TiO₂ content was only 12.64%, demonstrating effective chlorination performance.
- sub-millimeter fine-grade artificial rutile,
- high-speed stirring,
- boiling chlorination,
- titanium resource utilization

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References(21)

References

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