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使用三辛胺从废水中反应萃取甲磺酸。

Reactive extraction of methanesulfonic acid from wastewater using trioctylamine.

作者信息

Zhou Jian, Jia Yu, Wei Chengjia, Li Huiru, Liu Yufeng

机构信息

School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China.

Ministry of Education Engineering Research Center of Water Resource Comprehensive Utilization in Cold and Arid Regions, Lanzhou, 730070, China.

出版信息

Sci Rep. 2024 Dec 3;14(1):30029. doi: 10.1038/s41598-024-81916-8.

DOI:10.1038/s41598-024-81916-8
PMID:39627463
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11615037/
Abstract

Wastewater containing methanesulfonic acid (MSA) mainly originates from the production process of metal detergent, which also contributes significantly to environmental pollution. This study investigates the extraction of MSA from wastewater using trioctylamine (TOA). A thorough investigation was carried out into the factors that affect extraction efficiency, such as the type of extractant, phase ratio (O/A), temperature, stirring speed, and extraction time. An extraction efficiency of 96.1% was achieved using TOA at 25 °C, 1400 r·min, and an extraction time of 30 min. Various techniques including FT-IR, XPS, and high-resolution ESI-MS were employed to investigate the extraction mechanism. The results of different techniques revealed that the complexation between TOA and MSA occurred through ionic and hydrogen bonding interactions. Moreover, TOA was successfully regenerated through back-extraction with sodium hydroxide. The proposed extraction system is advantageous for eco-friendly engineering applications.

摘要

含有甲磺酸（MSA）的废水主要来源于金属洗涤剂的生产过程，这也对环境污染有重大贡献。本研究考察了用三辛胺（TOA）从废水中萃取甲磺酸。对影响萃取效率的因素进行了深入研究，如萃取剂类型、相比（O/A）、温度、搅拌速度和萃取时间。在25℃、1400 r·min和萃取时间为30 min的条件下，使用TOA实现了96.1%的萃取效率。采用了包括傅里叶变换红外光谱（FT-IR）、X射线光电子能谱（XPS）和高分辨率电喷雾电离质谱（ESI-MS）等多种技术来研究萃取机理。不同技术的结果表明，TOA与MSA之间的络合是通过离子键和氢键相互作用发生的。此外，通过用氢氧化钠进行反萃取成功地再生了TOA。所提出的萃取系统有利于环保工程应用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/3dda8db19c50/41598_2024_81916_Fig12_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/429e8ec37b1c/41598_2024_81916_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/0a332405703e/41598_2024_81916_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/5c7079ef2012/41598_2024_81916_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/c3fa412f3ca2/41598_2024_81916_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/3dda8db19c50/41598_2024_81916_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/d46d207a29a9/41598_2024_81916_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/323fb2717b0a/41598_2024_81916_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/fdb6dbb39b6e/41598_2024_81916_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/f1876c5794e6/41598_2024_81916_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/5ad37de1f742/41598_2024_81916_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/3036ab741834/41598_2024_81916_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/2539a621c70e/41598_2024_81916_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/429e8ec37b1c/41598_2024_81916_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/0a332405703e/41598_2024_81916_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/5c7079ef2012/41598_2024_81916_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/c3fa412f3ca2/41598_2024_81916_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e623/11615037/3dda8db19c50/41598_2024_81916_Fig12_HTML.jpg

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