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A case study targeting K fertilizer chemical synthesis with complete valorization of extraction by-products as an option

文献类型：期刊论文

作者Yuan, Jiangyan4,5; Ma, Hongwen4; Guo, Ruoyu4; Ma, Xi3; Komarneni, Sridhar1,2
刊名GREEN CHEMISTRY
出版日期2020-10-21
卷号22期号:20页码:6954-6966
ISSN号1463-9262
DOI10.1039/d0gc02448a
英文摘要Here, we demonstrate processing techniques for KNO3 preparation through green chemical reaction engineering of abundant rock-forming minerals to achieve materials sustainability. In this study, chemical reactions at both low and high temperatures were conducted to investigate the extraction of potassium from kalsilite, KAlSiO4 for use as a K-fertilizer material and simultaneous transformation of kalsilite to materials such as aluminosilicate gel at low temperatures or muscovite at high temperatures; both these materials have many uses. In the low temperature range of 30 to 80 degrees C, the optimal conditions to extract potassium from KAlSiO4 and to obtain aluminosilicate gel were found to be as follows: by using then (HNO3)/n(KAlSiO4) ratio of 1.1, solid to water (S/L) ratio of 1 : 10, a reaction time of 3 h and a temperature of 40 degrees C. In the high temperature range of 210 to 250 degrees C, both potassium extraction and crystallization of muscovite were achieved at 250 degrees C. The mechanisms of K extractions and the simultaneous crystallization of muscovite at higher temperatures were determined by using different characterization techniques such as X-ray diffraction, SEM/TEM, Fourier transform infrared spectroscopy (FTIR), and magic-angle-spinning nuclear magnetic resonance spectroscopy (MAS NMR). Results from the above characterization tools demonstrated that kalsilite can be converted to muscovite by dissolution and recrystallization under hydrothermal conditions at 250 degrees C while releasing K into solution simultaneously. Three comprehensive utilization routes of potassium-rich rocks for KNO3 preparation were proposed. Our current results suggest that molecular engineering of abundant natural minerals may lead to materials sustainability through a green chemical approach where reactions are conducted in a closed system to prevent pollution and recover all the components as resources.
WOS关键词SECONDARY MINERAL PRECIPITATION ; ALKALI-FELDSPAR DISSOLUTION ; HYDROTHERMAL SYNTHESIS ; POTASSIUM MERLINOITE ; FLY ASHES ; ALUMINOSILICATE ; MECHANISM ; KAOLINITE ; ALUMINUM ; NITRATE
资助项目Fundamental Research Funds for the China Central Universities[2952016058] ; Fundamental Research Funds for the China Central Universities[2952016059]
WOS研究方向Chemistry ; Science & Technology - Other Topics
语种英语
WOS记录号WOS:000579757000024
出版者ROYAL SOC CHEMISTRY
资助机构Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities
源URL[http://ir.iggcas.ac.cn/handle/132A11/98710]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Ma, Hongwen; Komarneni, Sridhar
作者单位1.Penn State Univ, Mat Res Inst, 204 Energy & Environm Lab, University Pk, PA 16802 USA
2.Penn State Univ, Dept Ecosyst Sci & Management, 204 Energy & Environm Lab, University Pk, PA 16802 USA
3.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China
4.China Univ Geosci, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Sch Mat Sci & Technol, Beijing 100083, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Yuan, Jiangyan,Ma, Hongwen,Guo, Ruoyu,et al. A case study targeting K fertilizer chemical synthesis with complete valorization of extraction by-products as an option[J]. GREEN CHEMISTRY,2020,22(20):6954-6966.
APA Yuan, Jiangyan,Ma, Hongwen,Guo, Ruoyu,Ma, Xi,&Komarneni, Sridhar.(2020).A case study targeting K fertilizer chemical synthesis with complete valorization of extraction by-products as an option.GREEN CHEMISTRY,22(20),6954-6966.
MLA Yuan, Jiangyan,et al."A case study targeting K fertilizer chemical synthesis with complete valorization of extraction by-products as an option".GREEN CHEMISTRY 22.20(2020):6954-6966.

入库方式： OAI收割

来源：地质与地球物理研究所

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