An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO<sub>2</sub> emissions

Zhixi Gan; Zheng Cui; Hairong Yue; Siyang Tang; Changjun Liu; Chun Li; Bin Liang; Heping Xie

doi:10.1016/j.cjche.2016.04.001

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An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO₂ emissions

第25届中国过程控制会议专栏 | Updated：2026-01-06

- An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO₂ emissions
- An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO₂ emissions
- 中国化学工程学报（英文版） 2016年24卷第11期页码：1541-1551
- Affiliations：
  
  1. 2 Center of CCUS and CO
  2. Mineralization and Utilization, Sichuan University,Chengdu,China,610065
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2016.04.001
  中图分类号：
- 纸质出版：2016
- Accepted：
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Zhixi Gan, Zheng Cui, Hairong Yue, 等. An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO₂ emissions[J]. 中国化学工程学报（英文版）, 2016,24(11):1541-1551. DOI: 10.1016/j.cjche.2016.04.001.

emissions[J]. Chinese Journal of Chemical Engineering, 2016, 24(11): 1541-1551.
Zhixi Gan, Zheng Cui, Hairong Yue, 等. An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO₂ emissions[J]. 中国化学工程学报（英文版）, 2016,24(11):1541-1551. DOI: 10.1016/j.cjche.2016.04.001. DOI：

emissions[J]. Chinese Journal of Chemical Engineering, 2016, 24(11): 1541-1551. DOI： 10.1016/j.cjche.2016.04.001.

摘要

Abstract

The issues of reducing CO

emissions

sustainably utilizing naturalmineral resources

and dealing with industrial waste offer challenges for sustainable development in energy and the environment. We propose an efficient methodology via the co-reaction of K-feldspar and phosphogypsum for the extraction of soluble potassium salts and recovery of SO

with reduced CO

emission and energy consumption. The results of characterization and reactivity evaluation indicated that the partial melting of K-feldspar and phosphogypsum in the hightemperature co-reaction significantly facilitated the reduction of phosphogypsum to SO

and the exchange of K

(K-feldspar) with Ca

(CaSO

in phosphogypsum). The reaction parameters were systematically investigated with the highest sulfur recovery ratio of ~60% and K extraction ratio of ~87.7%. This novel methodology possesses an energy consumption reduction of ~28% and CO

emission reduction of ~55% comparing with the present typical commercial technologies for utilization of K-feldspar and the treatment of phosphogypsum.

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An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO2 emissions

An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO2 emissions

DOI：10.1016/j.cjche.2016.04.001

摘要

Abstract

关键词

Keywords

references

An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO₂ emissions

An efficient methodology for utilization of K-feldspar and phosphogypsum with reduced energy consumption and CO₂ emissions