Experimental study by online measurement of the precipitation of nickel hydroxide:Effects of operating conditions |
| |
Authors: | Weiwei E Jingcai Cheng Chao Yang Zaisha Mao |
| |
Affiliation: | 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 |
| |
Abstract: | The objective of this work is using the online measurement method 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 Pro-cess Sizer every 20 s. It was found that d43 varied between 13μm and 26μm under different operating conditions, and it decreased with increasing impel er diameter. When feeding at the off-bottom distance of D/2 under lower impeller speeds, d43 was significantly smaller than that at D/3. PSDs were slightly influenced by operating conditions. |
| |
Keywords: | Nickel hydroxide Precipitation Particle size distribution Online measurement Stirred tank Mixing |
本文献已被 万方数据 等数据库收录! |
| 点击此处可从《中国化学工程学报》浏览原始摘要信息 |
|
点击此处可从《中国化学工程学报》下载全文 |
|