DOI: 10.1016/j.jcou.2014.11.004
Scopus记录号: 2-s2.0-84941937746
论文题名: Experimental study of enhanced phosphogypsum carbonation with ammonia under increased CO2 pressure
作者: Zhao H. ; Li H. ; Bao W. ; Wang C. ; Li S. ; Lin W.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2015
卷: 11 起始页码: 10
结束页码: 19
语种: 英语
英文关键词: Accelerated carbonation
; Ammonium
; Calcite
; Increased CO2 pressure
; Phosphogypsum
Scopus关键词: Ammonia
; Calcite
; Carbonation
; Gypsum
; Particle size
; Scanning electron microscopy
; X ray diffraction
; Accelerated carbonation
; Ammonium
; Average particle size
; Carbonation process
; Energy dispersive x-ray
; Initial temperatures
; Phosphate industries
; Phosphogypsum
; Carbon dioxide
英文摘要: Phosphogypsum is the byproduct discharged from phosphate industry. A novel process was proposed for converting phosphogypsum into ammonium sulfate via phosphogypsum carbonation with ammonia. The effects of stirring speed, reaction time, initial temperature, CO2 partial pressure, liquid-solid ratio and excess ammonia ratio were evaluated. The main phases presented before and after the carbonation process were identified using X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray (SEM-EDX) and carbon-sulfur (CS) analytical techniques. The phosphogypsum was found to have the highest carbonation conversion of approximately 97% in 5 min. The product collected from the reaction was characterized as calcite with the average particle size smaller than the raw phosphogypsum. © 2014 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52957
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Zhao H.,Li H.,Bao W.,et al. Experimental study of enhanced phosphogypsum carbonation with ammonia under increased CO2 pressure[J]. Journal of CO2 Utilization,2015-01-01,11