应用化学 ›› 2021, Vol. 38 ›› Issue (8): 1022-1024.DOI: 10.19894/j.issn.1000-0518.210105

• 研究简报 • 上一篇    下一篇

一种木醋液制备环保型融雪剂的方法

高子亭1, 李占超2, 蒋谦2, 高俊丽2, 刘星宇2, 汪子明2*   

  1. 1吉林大学环境保护工作办公室,长春 130012
    2吉林大学化学学院,长春 130012
  • 收稿日期:2020-03-09 修回日期:2021-06-04 出版日期:2021-08-01 发布日期:2021-10-01
  • 通讯作者: *E-mail:wangziming@jlu.edu.cn
  • 基金资助:
    中央高校基本科研业务费专项资金(No.415010200045)资助

A Method for Preparing Environment-friendly Snow-melting Agent from Wood Vinegar

GAO Zi-Ting1, LI Zhan-Chao2, JIANG Qian2, GAO Jun-Li2, LIU Xing-Yu2, WANG Zi-Ming2*   

  1. 1Environmental Protection Office of Jilin University, Changchun 130012, China
    2College of Chemistry of Jilin University, Changchun 130012, China
  • Received:2020-03-09 Revised:2021-06-04 Published:2021-08-01 Online:2021-10-01
  • Supported by:
    Fundamental Research Funds for the Central Universities(No.415010200045)

摘要: 提出了一种采用木醋液制备醋酸盐环保型融雪剂的方法:二次蒸馏法,即用一次蒸馏的粗制木醋液与碳酸钙反应制备醋酸钙,然后将反应液二次蒸馏使醋酸钙析出制得融雪剂。 通常用木醋液制备融雪剂采用的方法是反应制备醋酸盐—活性炭脱色—浓缩或结晶和二级蒸馏富集乙酸—反应制备醋酸盐—浓缩或结晶。 二次蒸馏法与二者相比,它除去了木醋液中的焦油、酚类等有害物质、制备工艺流程也更加简便,是一种能实现大规模生产醋酸盐融雪剂的新方法。

关键词: 木醋液, 二次蒸馏, 醋酸钙, 环保型融雪剂

Abstract: A two-step distillation method of preparing the environment-friendly snow melting acetate from wood vinegar is developed, that is, the wood vinegar that is distilled once reacts with calcium carbonate to prepare calcium acetate, and then the reaction solution is redistilled to make calcium acetate precipitate to prepare the snow melting agent. Usually, the methods used to prepare snow melting agent from wood vinegar are acetate preparation, activated-carbon decolorization, and concentration/crystallization or two-stage distillation to enrich acetic acid, acetate preparation, and concentration/crystallization. Compared with the two methods, the two-step distillation method eliminates tar, phenols and other harmful substances in the wood vinegar, and the preparation process is also more convenient. It is a new method to realize the large-scale production of acetate snow melting agent.

Key words: Wood vinegar, Twice distillation, Calcium acetate, Environmentally friendly snow melting agent

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