大柴旦盐湖冬季组成卤水的天然蒸发  

Solar Evaporation of Surface Brine (in Winter) of Da Chaidam Salt Lake

作　　者：高世扬[1] 柳大纲[1] 

机构地区：[1]中国科学院青海盐湖研究所

出　　处：《盐湖研究》1996年第3期87-91,共5页Journal of Salt Lake Research

摘　　要：进行天然蒸发实验用卤水是冬季气温最低的一月份取自大柴旦湖表卤水区，化学分析结果表明硫酸根含量明显地较夏季卤水低。在天然蒸发过程中顺次结晶析出ＮａＣｌ，ＫＣｌ，ＫＣｌ·ＭｇＣｌ２·６Ｈ２Ｏ，ＭｇＣｌ２·６Ｈ２Ｏ和ＭｇＳＯ４·６Ｈ２Ｏ。这显然与夏季组成卤水的蒸发结晶顺序存在明显不同。In this report, we study behavior of borate during solar evaporation of surface brine (in Summer)of Da Chaidam salt lake. The solar evaporation of the borate-contained brine indicates that the crystallization of salts does not accord with van'thoff's stable equilibrium phase diagram,but agree with kurnakor's solar evaporation diagram.The number of concentrated times of brine(W°brion/Wbrine)equals to that of boron enrichment (Cboron/C°boron)in concentrated brine during solar evaporation. It may be considered that the borate does not generally crystallize out till the stage of bischofite, and accumulates fully in the concentrated brine.

关 键 词：盐湖 卤水 蒸发 冬季 

分 类 号：P332.2[天文地球—水文科学] P641.464[水利工程—水文学及水资源]