Boron Recovery and Utilization of Boron Bearing Tailings from Wengquanggou, Fengcheng

YUAN Zhuang; CHEN Wen; LIU Xiaoyin; WANG Xiang; SONG Xin; WANG Wei

doi:10.12476/kczhly.202305100246

2025 Vol. 46, No. 5

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Article navigation > Multipurpose Utilization of Mineral Resources > 2025 > 46(5): 119-125

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YUAN Zhuang, CHEN Wen, LIU Xiaoyin, WANG Xiang, SONG Xin, WANG Wei. Boron Recovery and Utilization of Boron Bearing Tailings from Wengquanggou, Fengcheng[J]. Multipurpose Utilization of Mineral Resources, 2025, 46(5): 119-125. doi: 10.12476/kczhly.202305100246

Citation:

YUAN Zhuang, CHEN Wen, LIU Xiaoyin, WANG Xiang, SONG Xin, WANG Wei. Boron Recovery and Utilization of Boron Bearing Tailings from Wengquanggou, Fengcheng[J]. Multipurpose Utilization of Mineral Resources, 2025, 46(5): 119-125. doi: 10.12476/kczhly.202305100246

Boron Recovery and Utilization of Boron Bearing Tailings from Wengquanggou, Fengcheng

Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha, Hunan 410012, China

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Corresponding author: CHEN Wen, 173249058@qq.com

Received Date: 10 May 2023

Publish Date: 25 October 2025

Abstract

Abstract

With the increasing attention on boron resources at home and abroad, the safety supply of boron resources is particularly important in order to prevent the risk of "choking" of boron resources. As the main boron production base in China, Wengquangou, Fengcheng, Liaoning Province, has seen a gradual reduction of boron content in raw ore in recent years, while the stock of tailings is increasing. In order to realize the "boron removal reduction" of tailings, a systematic study was carried out on refractory micro-fine boron bearing tailings from Wengquangou, Fengcheng. The raw ore B₂O₃ contains 5.86%, and exists in the form of bormagnesite (low activity). In order to produce boron chemical materials, the grade of B₂O₃ in the fine grain (-0.038 mm) is 10.37%, and distribution rate is 75.72%. The states of boron are controlled by physical separation and preenrichment or roasting. A boron concentrate with a B₂O₃ grade of 12.56% and a recovery of 64.53% was obtained by physical separation and preenrichment test. At the roasting temperature of 650 ℃ and time of 45 min, the leaching rate of the calcination ore reached 91.56%. In the calcination process, the boronite (Mg₂[B₂O₄(OH)](OH)) becomes suanite (Mg₂B₂O₅) due to dehydroxylation, and the boron concentrate has a very fine particle size, which greatly reduces the roasting and leaching time. Therefore, high quality boron chemical materials can be obtained through the process of physical separation and roasting activation.
- metallurgical engineering /
- boron tailings /
- boronite /
- suanite /
- roasting activation

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References

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