IGGCAS OpenIR  > 矿产资源研究院重点实验室
Process Optimization of Potassium Release from K-Feldspar by Combining Calcination and Hydrothermal Method
Liu, Shanke1,2; Han, Cheng1,2; Liu, Jianming1,2
2020-01-16
Source PublicationCHEMISTRYSELECT
ISSN2365-6549
Volume5Issue:2Pages:522-527
AbstractAn optimized process of the hydrothermal treatment of potassium feldspar (K-feldspar) and lime to obtain a potash alternative is reported. The optimization did not change a two-key-step process and only modified the first step, in which K-feldspar was calcined together with calcium carbonate. However, this modified treatment greatly improved the dissolution of K-feldspar, and the released K+Al+Si content was increased by 43 %. Phase analysis showed that new phases (i. e., leucite, larnite, and portlandite) appeared, and the structure of K-feldspar was destroyed during calcination. After the hydrothermal reaction (i. e., the second step), many new mineral phases were generated: butschliite, calcite, hibschite, tobermorite, and alpha-dicalcium silicate hydrate. Therefore, the optimized product showed better physicochemical properties. In addition, the activity of lime was investigated to evaluate its effect on the hydrothermal dissolution of K-feldspar. The optimized hydrothermal product, as a potential commodity, was evaluated from technological and environmental points of view.
Keywordcalcination hydrothermal K-feldspar phase analysis process optimization
DOI10.1002/slct.201904278
WOS KeywordCARBONATE PRECIPITATION ; CALCIUM SILICATE ; CO2 ; MINERALIZATION ; DECOMPOSITION ; DISSOLUTION ; FERTILIZER ; MECHANISM ; KINETICS ; REMOVAL
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000507660100012
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95891
Collection矿产资源研究院重点实验室
Corresponding AuthorLiu, Shanke
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
First Author AffilicationKey Laboratory of Mineral Resources, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Mineral Resources, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Liu, Shanke,Han, Cheng,Liu, Jianming. Process Optimization of Potassium Release from K-Feldspar by Combining Calcination and Hydrothermal Method[J]. CHEMISTRYSELECT,2020,5(2):522-527.
APA Liu, Shanke,Han, Cheng,&Liu, Jianming.(2020).Process Optimization of Potassium Release from K-Feldspar by Combining Calcination and Hydrothermal Method.CHEMISTRYSELECT,5(2),522-527.
MLA Liu, Shanke,et al."Process Optimization of Potassium Release from K-Feldspar by Combining Calcination and Hydrothermal Method".CHEMISTRYSELECT 5.2(2020):522-527.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Shanke]'s Articles
[Han, Cheng]'s Articles
[Liu, Jianming]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Shanke]'s Articles
[Han, Cheng]'s Articles
[Liu, Jianming]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Shanke]'s Articles
[Han, Cheng]'s Articles
[Liu, Jianming]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.