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中南大学学报(自然科学版)

Journal of Central South University

第27卷    第4期    总第110期    1996年8月

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文章编号:(1996)04-424-4
镍镉电池废料的三相流态化浸出
钟积龙; 任鸿九; 苏鹏搏

(中南工业大学有色冶金系;长沙;410083)

摘 要: 提出硫酸熟化及三相流态化浸出处理镍镉电池废料的新工艺.考察了硫酸耗量,液固比,温度及时间几个因素对浸出的影响.当采用1.1倍理论酸量、液固比2:1和常温下浸出1.0h,得到的浸出率为:镍98.88%,镉97.96%;扩大试验总浸出率均不低于95%.三相流态化反应器单位面积生产能力达到127.4Kg/m2·h.

 

关键字: 镍镉电池废料; 熟化; 三相流态化浸出

THREE-PHASE FLUIDIZED BED LEACHING OF WASTE Ni-Cd BATTERY
Zhong Jilong;Ren Hongjiu;Su Pongtuan

Department of Nonferrous Metallurgy, Central South University of Technology,Changsha, 410083, China

Abstract:A new technique of processing waste from manufacturing Ni-Cd batteries by sulphuric acid-curing and leaching in three-phase fluidized reactox has been proposed. The factors such as the amount of H2SO4, liquid-solid ratio, temperature and time affecting leaching have been studied also. When the amount of H2SO4 is 1. 1 times of theoretical amount, liquid-solid ratio is 2 and waste is leached at ambient temperature for 1.0 hour; the extraction yields of Ni and Cd are 98. 88 % and 97. 86 % respectively. Their extraction yield exceeds 95%in larger-scale experiment. The productivity of three-phase fluidized reactor is up to 127.4kg/m2·h.

 

Key words: wastes of Ni-Cd battery; curing; leach in three-phase fluidized reactor

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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