辽宁石油化工大学学报 ›› 2026, Vol. 46 ›› Issue (4): 23-30.DOI: 10.12422/j.issn.1672-6952.2026.04.004

• 材料科学与新能源 • 上一篇    下一篇

电石渣气⁃液碳化制备纳米碳酸钙工艺优化

陶春洋1(), 李爽1, 朱春昀2, 马会强1()   

  1. 1.辽宁石油化工大学 环境与安全工程学院,辽宁 抚顺 113001
    2.辽宁省沈阳生态环境监测中心,辽宁 沈阳 110170
  • 收稿日期:2025-04-17 修回日期:2025-06-05 出版日期:2026-08-25 发布日期:2026-07-20
  • 通讯作者: 马会强
  • 作者简介:陶春洋(2001-),女,硕士研究生,从事固废资源化处理技术方面的研究;E⁃mail:1746437452@qq.com
  • 基金资助:
    辽宁省“兴辽英才计划”项目(XLYC2007007)

Preparation of Nano Calcium Carbonate by Gas⁃Liquid Carbonization from Calcium Carbide Slag

Chunyang TAO1(), Shuang LI1, Chunyun ZHU2, Huiqiang MA1()   

  1. 1.School of Environmental and Safety Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
    2.Liaoning Shenyang Ecological Environment Monitoring Center,Shenyang Liaoning 110170,China
  • Received:2025-04-17 Revised:2025-06-05 Published:2026-08-25 Online:2026-07-20
  • Contact: Huiqiang MA

摘要:

以电石渣为原料、异辛酸钠为钙提取剂,采用气-液碳化法制备纳米碳酸钙,并对其进行了X射线荧光光谱(XRF)、X射线衍射(XRD)及扫描电子显微镜(SEM)表征分析。结果表明,在皂化率为80%、皂化反应温度为80 ℃、皂化反应时间为40 min、复分解反应温度为80 ℃、复分解反应时间为60 min、氯化钙浓度为0.5 mol/L、油相与水相的体积比为2.0∶1.0的条件下,电石渣中钙提取率可达96.40%;在反应温度为6 ℃、搅拌速率为400 r/min、液体滴加速率为35 mL/min、CO2流速为100 mL/min的条件下,碳化效率效果最佳;所得纳米碳酸钙为方解石型,粒径为78.8 nm,钙质量分数为94.10%,粒度均匀。本研究以电石渣为原料,通过优化工艺制备纳米碳酸钙,实现了电石渣固废的高价值资源化利用及CO2减排,为纳米碳酸钙的制备提供了新思路。

关键词: 电石渣, 纳米碳酸钙, 气?液碳化法, 溶剂萃取, 回收

Abstract:

Using calcium carbide slag as raw material and isocaprylic acid as the calcium extraction agent, nano calcium carbonate was prepared through CO2 carbonization and characterized. Under the conditions of 80% saponification rate, 80 ℃ saponification temperature, 40 min saponification time, 80 ℃decomposition temperature, 60 min decomposition time, 0.5 mol/L calcium chloride concentration, and the volume ratio of the oil phase to the water phase is 2.0∶1.0, the extraction rate of calcium ions from calcium carbide slag reached 96.40%. Nano calcium carbonate was then prepared using the gas?liquid carbonization method. The optimal carbonization efficiency was achieved at a reaction temperature of 6 ℃, stirring speed of 400 r/min, liquid droplet rate of 35 mL/min, and CO2 flow rate of 100 mL/min. Characterization by X?ray fluorescence spectroscopy, X?ray diffraction, and scanning electron microscopy showed that the nano calcium carbonate product was of the calcite type, with a particle size of 78.8 nm, calcium content was 94.10%, and uniform particle size. This study optimizes the process of producing nano calcium carbonate from calcium carbide slag, enabling high?value reuse of solid waste and CO2 emission reduction, providing new insights for the preparation of nano calcium carbonate products.

Key words: Calcium carbide slag, Nano calcium carbonate, Gas?liquid carbonization method, Solvent extraction, Recovery

中图分类号: 

引用本文

陶春洋, 李爽, 朱春昀, 马会强. 电石渣气⁃液碳化制备纳米碳酸钙工艺优化[J]. 辽宁石油化工大学学报, 2026, 46(4): 23-30.

Chunyang TAO, Shuang LI, Chunyun ZHU, Huiqiang MA. Preparation of Nano Calcium Carbonate by Gas⁃Liquid Carbonization from Calcium Carbide Slag[J]. Journal of Liaoning Petrochemical University, 2026, 46(4): 23-30.

使用本文

0
    /   /   推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://journal.lnpu.edu.cn/CN/10.12422/j.issn.1672-6952.2026.04.004

               https://journal.lnpu.edu.cn/CN/Y2026/V46/I4/23