物理化学学报 >> 2002, Vol. 18 >> Issue (06): 536-539.doi: 10.3866/PKU.WHXB20020613

研究简报 上一篇    下一篇

废旧镍镉电池真空蒸馏规律的研究

朱建新;李金惠;聂永丰   

  1. 清华大学环境科学与工程系, 北京 100084
  • 收稿日期:2001-11-06 修回日期:2001-12-13 发布日期:2002-06-15
  • 通讯作者: 朱建新 E-mail:zhujianxin00@mails.tsinghua.edu.cn

Vacuum Thermal Recycling of Used Ni-Cd Batteries

Zhu Jian-Xin;Li Jin-Hui;Nie Yong-Feng   

  1. Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084
  • Received:2001-11-06 Revised:2001-12-13 Published:2002-06-15
  • Contact: Zhu Jian-Xin E-mail:zhujianxin00@mails.tsinghua.edu.cn

摘要: 在实验室条件下,对镍镉电池的真空蒸馏基本规律进行了探索.分析了温度、压力和时间等工艺因素对镍镉分离效果的影响,并对镍镉电池的真空蒸馏机理进行了研究,为废旧镍镉电池资源化提供了理论依据和实验数据.

关键词: 废旧镍镉电池, 真空蒸馏, 资源化, 再生利用技术, 环境保护

Abstract: Recovery of Ni-Cd batteries was studied by a self-designed vacuum-aided recycling system under laboratory conditions. The impacts of temperature, pressure and time were studied respectively. The mechanism of vacuum thermal recycling was also discussed. The results show that, at constant pressure, the increase of temperature can improve the separation efficiency of cadmium. When the temperature is 1173 K, the cadmium can evaporate completely from the residue during 3 h at 10 Pa. The reduction of pressure in a certain range is effective to separate cadmium by vacuum distillation. Distillation time is a very important factor affecting separation of cadmium.

Key words: Waste Ni-Cd battery, Vacuum distillation, Resource recovery, Recycling technology, Environmental protection