Comparative experimental study on reactive crystallization of Ni(OH)<sub>2</sub> in an airlift-loop reactor and a stirred reactor

Tianrong Cao; Weipeng Zhang; Jingcai Cheng; Chao Yang

doi:10.1016/j.cjche.2017.03.007

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Comparative experimental study on reactive crystallization of Ni(OH)₂ in an airlift-loop reactor and a stirred reactor

Materials and Product Engineering | Updated：2026-01-06

- Comparative experimental study on reactive crystallization of Ni(OH)₂ in an airlift-loop reactor and a stirred reactor
- Chinese Journal of Chemical Engineering Vol. 26, Issue 1, Pages: 196-206(2018)
- Affiliations：
  
  1. 2 Nanjing Jiuzhang Chemical Technology Co. Ltd.,Nanjing,China,21180
  2. 3 University of Chinese Academy of Sciences,Beijing,China,100049
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.03.007
  CLC：
- Published：2018
- Accepted：
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in an airlift-loop reactor and a stirred reactor[J]. Chinese Journal of Chemical Engineering, 2018, 26(1): 196-206.
DOI：

in an airlift-loop reactor and a stirred reactor[J]. Chinese Journal of Chemical Engineering, 2018, 26(1): 196-206. DOI： 10.1016/j.cjche.2017.03.007.

摘要

Abstract

The objective of this work is to study the reactive crystallization in an airlift-loop reactor (ALR) using the precipitation of Ni(OH)

as a model reaction. The growth of Ni(OH)

particles in an ALR and a stirred tank was quantified by scanning electronic microscope (SEM)

X-ray diffraction (XRD)

laser particle analyzer

tap densitometer and optical microscope

and the growth process of Ni(OH)

particles is analyzed. It is found that the Ni(OH)

particles prepared in an ALR have a better sphericity than those in a stirred tank and the growth of Ni(OH)

particle tap density mainly depends on the size of crystallites:the bigger the size of crystallites

the bigger the tap density is. Based on these

the growth process of Ni(OH)

particles in ALR is elaborated. Crystallites precipitated from solution aggregate to form large particles with much void. These constituting crystallites continue to grow up

that takes up the void inside particles and makes the tap density increase.

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⁰

Comparative experimental study on reactive crystallization of Ni(OH)2 in an airlift-loop reactor and a stirred reactor

DOI：10.1016/j.cjche.2017.03.007

摘要

Abstract

关键词

Keywords

references

Comparative experimental study on reactive crystallization of Ni(OH)₂ in an airlift-loop reactor and a stirred reactor