Study on The Fluidized Bed Electrochemical Reactor (Ⅲ) Voltage Distributions and Macro-performances in Silver Deposition System

Sun Qiwen; Zhu Ying and Zhu Bingchen(East China University of Chemical Technology; Shanghai)

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Study on The Fluidized Bed Electrochemical Reactor (Ⅲ) Voltage Distributions and Macro-performances in Silver Deposition System

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- Study on The Fluidized Bed Electrochemical Reactor (Ⅲ) Voltage Distributions and Macro-performances in Silver Deposition System
- CIESC Journal Issue 5, (1991)
- 作者机构：
  
  华东化工学院,华东化工学院,华东化工学院 ,上海,上海,上海
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 October 1991，
  
  Published：25 October 1991
- 稿件说明：
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Sun Qiwen, Zhu Ying and Zhu Bingchen(East China University of Chemical Technology, Shanghai). Study on The Fluidized Bed Electrochemical Reactor (Ⅲ) Voltage Distributions and Macro-performances in Silver Deposition System[J]. CIESC Journal, 1991, (5).
DOI：

Sun Qiwen, Zhu Ying and Zhu Bingchen(East China University of Chemical Technology, Shanghai). Study on The Fluidized Bed Electrochemical Reactor (Ⅲ) Voltage Distributions and Macro-performances in Silver Deposition System[J]. CIESC Journal, 1991, (5). DOI：

摘要

本文研究了流化床电化学反应器的电位分布及电位在波动范围内的概率分布密度

获得了电沉积银系统的最佳床层膨胀率

并就温度对银沉积速率的影响、电流效率随Ag~(+)浓度的变化等进行了探讨.

Abstract

In this paper

the voltage distributions and the probability distribution densities within the range of voltage fluctuations in a silver deposition system are investigated. The optimal degree of expansion of fluidized bed is obtained and some other important problems such as the influence of temperature on the silver deposition rate

the change of current efficiency with the concentration of Ag+ are also studied. The experimental results show that

under smooth fluidized state

all the particle voltage

electrolyte voltage and overvoltage follow the Gaussian probability distribution density within their fluctuation ranges

but when slugging or channeling appears such relationships no longer exist. The mean values of the voltage do not change in the x and z directions

but change in the y direction for the reactor used. Near the collector and the membrance the over-voltage is higher. The influence of temperature on the deposition rate of silver is rather small. The experimental results also show that the Ag+ in the electrolyte can be deposited rather completely

but when the electrolyte becomes very dilute the current efficiency decreases sharply.

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