ISL OpenIR  > 青海盐湖研究所知识仓储
Implications for the origin of secondary sylvite from a simulation of carnallite dissolution
Cheng, Huai De; Hai, Qing Yu; Ma, Hai Zhou; Zhang, Xi Ying; Tang, Qi Liang; Fan, Qi Shun; Li, Yong Shou; Miao, Wei Liang
2016-06-01
发表期刊JOURNAL OF GEOCHEMICAL EXPLORATION
卷号165页码:189-198
文章类型Article
摘要The relationship between sylvinite (KCl + NaCl) and camallite (KCl center dot MgCl2.6H(2)O) is important in potash mines containing carnallite, and especially where sylvinite overlies carnallite. It is generally believed that this reversal of the normal depositional sequence may be caused by dissolution of carnallite. To obtain sylvite (KCl) from carnallite ore in the present study, first camallite ore dissolution was performed in an aqueous solution at 25 degrees C, and then the sylvite was separated from halite (NaCl) in the sylvinite by a flotation method. The Br and Rb concentrations in the sylvite derived from the carnallite ore were determined. The results showed that more than 4/5th of the Br and Rb in the carnallite ore transferred to the mother liquor, while the remainder of the Br and Rb was in the sylvinite. The sylvite separated from this sylvinite had purity of 94-96%. In the sylvite derived from carnallite, the Br concentration was obviously lower (by an order of magnitude) than the concentration in primary sylvite from evaporation of MgSO4-deficient sea water, and the Rb concentration was twice that in primary sylvite from evaporation of MgSO4-deficient sea water. Compared to the Br and Rb concentrations in secondary sylvite from Khorat Plateau, Sergipe, and Prairie evaporites, the concentrations in the sylvite derived from carnallite ore were similar. The redistribution of Br and Rb in the form of secondary sylvite was in a relative stable proportion according to the comparison of Br and Rb. The lower Br and higher Rb concentrations in sylvite derived from camallite ore could be caused by KCl re-crystallization and redistribution of Br and Rb between the solid and liquid phases. The driving force behind changes in the partition coefficients of Br and Rb is that the dissolution of carnallite is much slower than the nucleation of KCl. (C) 2016 Elsevier B.V. All rights reserved.
关键词Carnallite Flotation Separation Leaching Dissolution Potash Secondary Sylvite
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]PRAIRIE EVAPORITE FORMATION ; ALKALI-HALIDE PARTICLES ; SOLUBLE SALT FLOTATION ; POTASH DEPOSITS ; MAGNESIUM-CHLORIDE ; KHORAT PLATEAU ; CENTRAL IRAN ; SASKATCHEWAN ; LAOS ; DIAGENESIS
收录类别SCI
语种英语
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000375515000017
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6319
专题青海盐湖研究所知识仓储
盐湖地质与环境实验室
科研管理、支撑部门
作者单位Chinese Acad Sci, Qinghai Inst Salt Lakes, 18 Xinning Rd, Xining 810008, Qinghai, Peoples R China
推荐引用方式
GB/T 7714
Cheng, Huai De,Hai, Qing Yu,Ma, Hai Zhou,et al. Implications for the origin of secondary sylvite from a simulation of carnallite dissolution[J]. JOURNAL OF GEOCHEMICAL EXPLORATION,2016,165:189-198.
APA Cheng, Huai De.,Hai, Qing Yu.,Ma, Hai Zhou.,Zhang, Xi Ying.,Tang, Qi Liang.,...&Miao, Wei Liang.(2016).Implications for the origin of secondary sylvite from a simulation of carnallite dissolution.JOURNAL OF GEOCHEMICAL EXPLORATION,165,189-198.
MLA Cheng, Huai De,et al."Implications for the origin of secondary sylvite from a simulation of carnallite dissolution".JOURNAL OF GEOCHEMICAL EXPLORATION 165(2016):189-198.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Cheng, Huai De]的文章
[Hai, Qing Yu]的文章
[Ma, Hai Zhou]的文章
百度学术
百度学术中相似的文章
[Cheng, Huai De]的文章
[Hai, Qing Yu]的文章
[Ma, Hai Zhou]的文章
必应学术
必应学术中相似的文章
[Cheng, Huai De]的文章
[Hai, Qing Yu]的文章
[Ma, Hai Zhou]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。