Desilicification Reclying Ferrophosphorus Slag under Vacuum

BAI Qian; JING Bi; LI Qiuxia

doi:10.3969/j.issn.1000-6532.2024.02.020

2024 No. 2

Article Contents

Article navigation > Multipurpose Utilization of Mineral Resources > 2024 > 45(2): 123-126

Next Article Previous Article

BAI Qian, JING Bi, LI Qiuxia. Desilicification Reclying Ferrophosphorus Slag under Vacuum[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(2): 123-126. doi: 10.3969/j.issn.1000-6532.2024.02.020

Citation:

BAI Qian, JING Bi, LI Qiuxia. Desilicification Reclying Ferrophosphorus Slag under Vacuum[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(2): 123-126. doi: 10.3969/j.issn.1000-6532.2024.02.020

Desilicification Reclying Ferrophosphorus Slag under Vacuum

Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, Yunnan, China

More Information

Corresponding author: LI Qiuxia, qiuxiali03@163.com

Received Date: 28 June 2022

Publish Date: 25 April 2024

Abstract

Abstract

This is an article in the field of metallurgical engineering. For recycling theferrophosphorus slag which a by-products of phosphorus chemical industry,the thermodynamic calculations and experimentally investigations of the removal of SiO₂ by added CaO were carried out. The results of thermodynamic calculations of the reaction between SiO₂ and CaO show that: the Gibbs free energy values of generating CaO·SiO₂, 2CaO·SiO₂, 3CaO·SiO₂ and 3CaO·2SiO₂ are less than zero, when the temperature in 900～1700 K range and molar ratio of(SiO₂∶CaO)= 1∶1～3. It is feasible to generate calcium silicate by adding CaO, which can be used as a method of desilicification for ferrophosphorus slag. The experimental results show that:there are two layers of the products,i.e. Ca₂SiO₄, Ca₃SiO₅in the upper layer and Fe₂P in the lower layer when the pressure between 10～40 Pa and the temperature 1573 K and molar ratio of SiO₂∶CaO = 1∶1. The final products were testified to be ω（Si）<0.07%, which can be served as the precursor of transition metal phosphide and the potential feasibility of ferrophosphorus recycling.
- Metallurgical engineering /
- Ferrophosphorus /
- Desilicification /
- Metal phosphide /
- Vacuum

FullText(HTML)

References

[1]	史艳梅, 张兵. 过渡金属磷化物作为高效电解水析氢及加氢催化剂[J]. 科学观察, 2020, 15(6):59-61.SHI Y M, ZHANG B. Transition metal phosphides as efficient catalysts for hydrogen precipitation and hydrogenation in electrolytic water[J]. Scientific Observation, 2020, 15(6):59-61. Google Scholar SHI Y M, ZHANG B. Transition metal phosphides as efficient catalysts for hydrogen precipitation and hydrogenation in electrolytic water[J]. Scientific Observation, 2020, 15(6):59-61. Google Scholar
[2]	张红星. 汽柴油品质量标准与清洁燃料生产技术手段[J]. 中国石油和化工标准与质量, 2007(8):41-43.ZHANG H X. Quality standards for diesel fuel and technical means for cleaner fuel production[J]. China Petroleum and Chemical Standards and Quality, 2007(8):41-43. doi: 10.3969/j.issn.1673-4076.2007.08.011 CrossRef Google Scholar ZHANG H X. Quality standards for diesel fuel and technical means for cleaner fuel production[J]. China Petroleum and Chemical Standards and Quality, 2007(8):41-43. doi: 10.3969/j.issn.1673-4076.2007.08.011 CrossRef Google Scholar
[3]	Z J Zhao, Z X Zhu, X B Bao, et al. Facile construction of metal phosphides (MP, M = Co, Ni, Fe, and Cu) wrapped in three-dimensional N, P-codoped carbon skeleton toward highly efficient hydrogen evolution catalysis and lithium-ion storage[J]. ACS Applied Materials & Interfaces, 2021, 13(8):30-41. Google Scholar
[4]	侯朝霞, 李思瑶, 王凯, 等. 磷化物及磷基复合材料在二次电池中的研究进展[J]. 功能材料, 2021, 52(2): 2025-2033.HOU C X, LI S Y, WANG K , et al. Research progress of phosphides and phosphorus-based composites in secondary batteries[J]. Functional Materials, 2021, 52(2): 2025-2033. Google Scholar HOU C X, LI S Y, WANG K , et al. Research progress of phosphides and phosphorus-based composites in secondary batteries[J]. Functional Materials, 2021, 52(2): 2025-2033. Google Scholar
[5]	白倩. 磷铁真空热分解及磷铁加镍制备金属磷化物[D]. 昆明: 云南师范大学, 2016: 6-8.BAI Q. Vacuum thermal decomposition of ferrophosphorus and preparation of metal phosphides by adding nickel to ferrophosphorus[D]. Kunming: Yunnan Normal University, 2016. Google Scholar BAI Q. Vacuum thermal decomposition of ferrophosphorus and preparation of metal phosphides by adding nickel to ferrophosphorus[D]. Kunming: Yunnan Normal University, 2016. Google Scholar
[6]	肖洁琼, 吴小宁, 王倩, 等. 过渡金属磷化物的制备及其催化性能研究进展[J]. 化学通报, 2021, 84(3):215-224.XIAO J Q, WU X N, WANG Q, et al. Progress in the preparation of transition metal phosphides and their catalytic properties[J]. Chemistry Bulletin, 2021, 84(3):215-224. Google Scholar XIAO J Q, WU X N, WANG Q, et al. Progress in the preparation of transition metal phosphides and their catalytic properties[J]. Chemistry Bulletin, 2021, 84(3):215-224. Google Scholar
[7]	朱对虎, 李平. 过渡金属磷化物催化剂综述[J]. 工业催化, 2019, 27(7):7-10.ZHU D H, LI P. A review of transition metal phosphide catalysts[J]. Industrial Catalysis, 2019, 27(7):7-10. doi: 10.3969/j.issn.1008-1143.2019.07.002 CrossRef Google Scholar ZHU D H, LI P. A review of transition metal phosphide catalysts[J]. Industrial Catalysis, 2019, 27(7):7-10. doi: 10.3969/j.issn.1008-1143.2019.07.002 CrossRef Google Scholar
[8]	朱晓辉, 邱臻哲, 白倩, 等. 磷化工副产磷铁的利用研究进展[J]. 无机盐工业, 2015, 47(2):6-8.ZHU X H, QIU Z Z, BAI Q, et al. Research progress on the utilization of phosphorus chemical by-product ferrophosphorus[J]. Inorganic Salt Industry, 2015, 47(2):6-8. Google Scholar ZHU X H, QIU Z Z, BAI Q, et al. Research progress on the utilization of phosphorus chemical by-product ferrophosphorus[J]. Inorganic Salt Industry, 2015, 47(2):6-8. Google Scholar
[9]	付克明, 朱虹, 张勤善, 等. 湿法加碱-燃烧粉煤灰合成P沸石的研究[J]. 武汉理工大学学报, 2010, 32(6):32-34.FU K M, ZHU H, ZHANG Q S, et al. Synthesis of P zeolite by wet addition of alkali and combustion of fly ash[J]. Journal of Wuhan University of Technology, 2010, 32(6):32-34. doi: 10.3963/j.issn.1671-4431.2010.06.008 CrossRef Google Scholar FU K M, ZHU H, ZHANG Q S, et al. Synthesis of P zeolite by wet addition of alkali and combustion of fly ash[J]. Journal of Wuhan University of Technology, 2010, 32(6):32-34. doi: 10.3963/j.issn.1671-4431.2010.06.008 CrossRef Google Scholar
[10]	童军武, 孙培梅. 粉煤灰和氧化钙烧结过程的热力学分析[J]. 新技术新工艺, 2010(2):78-81TONG J W, SUN P M. Thermodynamic analysis of sintering process of fly ash and calcium oxide[J]. New Technology and New Process, 2010(2):78-81 doi: 10.3969/j.issn.1003-5311.2010.02.028 CrossRef Google Scholar TONG J W, SUN P M. Thermodynamic analysis of sintering process of fly ash and calcium oxide[J]. New Technology and New Process, 2010(2):78-81 doi: 10.3969/j.issn.1003-5311.2010.02.028 CrossRef Google Scholar
[11]	袁海滨, 李秋霞, 朱富龙, 等. 二氧化硅在真空碳热-氯化法炼铝过程中的行为[J]. 中南大学学报:自然科学版, 2012(3):803-808.YUAN H B, LI Q X, ZHU F L, et al. Behavior of silicon dioxide in vacuum carbothermal-chlorination alumina refining[J]. Journal of Central South University:Natural Science Edition, 2012(3):803-808. Google Scholar YUAN H B, LI Q X, ZHU F L, et al. Behavior of silicon dioxide in vacuum carbothermal-chlorination alumina refining[J]. Journal of Central South University:Natural Science Edition, 2012(3):803-808. Google Scholar
[12]	刘予成, 李秋霞, 邱臻哲, 等. SiO₂对氟磷酸钙真空碳热还原反应的影响[J]. 真空科学与技术学报, 2013, 3:293-296.LIU Y C, LI Q X, QIU Z Z, et al. Effect of SiO₂ on the vacuum carbothermal reduction reaction of calcium fluorophosphate[J]. Journal of Vacuum Science and Technology, 2013, 3:293-296. doi: 10.3969/j.issn.1672-7126.2013.03.20 CrossRef Google Scholar LIU Y C, LI Q X, QIU Z Z, et al. Effect of SiO₂ on the vacuum carbothermal reduction reaction of calcium fluorophosphate[J]. Journal of Vacuum Science and Technology, 2013, 3:293-296. doi: 10.3969/j.issn.1672-7126.2013.03.20 CrossRef Google Scholar
[13]	傅献彩, 沈文霞, 姚天扬, 等. 物理化学[M]. 北京: 高等教育出版社, 2005.FU X C, SHEN W X, YAO T Y, et al. Physical Chemistry [M]. Beijing: Higher Education Press, 2005. Google Scholar FU X C, SHEN W X, YAO T Y, et al. Physical Chemistry [M]. Beijing: Higher Education Press, 2005. Google Scholar