Synthesis and formation mechanism of pinnoite in sulfated-type boron concentrated brine by dilution method

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 青海盐湖研究所知识仓储

	Synthesis and formation mechanism of pinnoite in sulfated-type boron concentrated brine by dilution method
	Peng, Jiaoyu 1,2; Bian, Shaoju 1,3; Lin, Feng 1,2; Wang, Liping 1,2; Dong, Yaping 1,2; Li, Wu 1,3
刊名	PHASE TRANSITIONS
	2017
卷号	90 期号:10 页码:1025-1033
关键词	Pinnoite Phase Transformation Sulfate-type Salt Lake Dilution Method
文献子类	Review
英文摘要	The synthesis of pinnoite (MgB2O(OH)(6)) in boron-containing brine was established with a novel dilution method. Effects of temperature, precipitation time, boron concentration and mass dilution ratio on the formation of pinnoite were investigated. The products obtained were characterized by X-ray diffraction (XRD), Raman, thermogravimetric and differential scanning calorimeter (TG-DSC), and scanning electron microscopy. The transformation mechanism of pinnoite with different dilution ratios was assumed by studying the crystal growth of pinnoite. The results showed that pinnoite was synthesized above 60 degrees C in the diluted brine. There were two reaction steps - precipitation of amorphous solid and the formation of pinnoite crystals - during the whole reaction process of pinnoite when the dilution ratio is more than 1.0 at 80 degrees C. While in the 0.5 diluted brine, only one reaction step of pinnoite crystal formation was observed and its transformation mechanism was discussed based on dissociation of polyborates in brine. Besides, the origin of pinnoite mineral deposited on salt lake bottom was proposed.
WOS研究方向	Crystallography ; Physics
语种	英语
WOS记录号	WOS:000417418000009
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/6406]
专题	青海盐湖研究所_青海盐湖研究所知识仓储青海盐湖研究所_盐湖资源综合利用工程技术中心青海盐湖研究所_盐湖资源与化学实验室
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining, Qinghai, Peoples R China 2.Qinghai Engn & Technol Res Ctr Comprehens Utiliz, Xining, Qinghai, Peoples R China 3.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources Chem Qinghai Prov, Xining, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Peng, Jiaoyu,Bian, Shaoju,Lin, Feng,et al. Synthesis and formation mechanism of pinnoite in sulfated-type boron concentrated brine by dilution method[J]. PHASE TRANSITIONS,2017,90(10):1025-1033.
APA	Peng, Jiaoyu,Bian, Shaoju,Lin, Feng,Wang, Liping,Dong, Yaping,&Li, Wu.(2017).Synthesis and formation mechanism of pinnoite in sulfated-type boron concentrated brine by dilution method.PHASE TRANSITIONS,90(10),1025-1033.
MLA	Peng, Jiaoyu,et al."Synthesis and formation mechanism of pinnoite in sulfated-type boron concentrated brine by dilution method".PHASE TRANSITIONS 90.10(2017):1025-1033.