SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2015, Vol. 23 ›› Issue (5): 860-867.DOI: 10.1016/j.cjche.2014.04.004

• MATERIALS AND PRODUCT ENGINEERING • Previous Articles     Next Articles

Experimental study by onlinemeasurement of the precipitation of nickel hydroxide: Effects of operating conditions

Weiwei E1, Jingcai Cheng1,2, Chao Yang1,2, Zaisha Mao1   

  1. 1 Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    2 Jiangsu Marine Resources Development Research Institute, Lianyungang 222005, China
  • Received:2014-01-20 Revised:2014-04-08 Online:2015-06-26 Published:2015-05-28
  • Contact: Jingcai Cheng, Chao Yang
  • Supported by:

    Supported by the State Key Development Program for Basic Research of China (2013CB632601), the National High Technology Research and Development Program of China (2011AA060704), the National Natural Science Foundation of China (21476236, 91434126) and the National Science Fund for Distinguished Young Scholars (21025627).

Experimental study by onlinemeasurement of the precipitation of nickel hydroxide: Effects of operating conditions

Weiwei E1, Jingcai Cheng1,2, Chao Yang1,2, Zaisha Mao1   

  1. 1 Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    2 Jiangsu Marine Resources Development Research Institute, Lianyungang 222005, China
  • 通讯作者: Jingcai Cheng, Chao Yang
  • 基金资助:

    Supported by the State Key Development Program for Basic Research of China (2013CB632601), the National High Technology Research and Development Program of China (2011AA060704), the National Natural Science Foundation of China (21476236, 91434126) and the National Science Fund for Distinguished Young Scholars (21025627).

Abstract: The objective of this work is using the online measurementmethod to study the process of precipitation of nickel hydroxide in a single-feed semi-batch stirred reactor with an internal diameter of D = 240 mm. The effects of impeller speed, impeller type, impeller diameter and feed location on the mean particle size d43 and particle size distribution (PSD) were investigated. d43 and PSD were measured online using a Malvern Insitec Liquid Process Sizer every 20 s. It was found that d43 varied between 13 μm and 26 μm under different operating conditions, and it decreased with increasing impeller diameter.When feeding at the off-bottomdistance of D/2 under lower impeller speeds, d43 was significantly smaller than that at D/3. PSDs were slightly influenced by operating conditions.

Key words: Nickel hydroxide, Precipitation, Particle size distribution, Online measurement, Stirred tank, Mixing

摘要: The objective of this work is using the online measurementmethod to study the process of precipitation of nickel hydroxide in a single-feed semi-batch stirred reactor with an internal diameter of D = 240 mm. The effects of impeller speed, impeller type, impeller diameter and feed location on the mean particle size d43 and particle size distribution (PSD) were investigated. d43 and PSD were measured online using a Malvern Insitec Liquid Process Sizer every 20 s. It was found that d43 varied between 13 μm and 26 μm under different operating conditions, and it decreased with increasing impeller diameter.When feeding at the off-bottomdistance of D/2 under lower impeller speeds, d43 was significantly smaller than that at D/3. PSDs were slightly influenced by operating conditions.

关键词: Nickel hydroxide, Precipitation, Particle size distribution, Online measurement, Stirred tank, Mixing