Revised equations for determining the critical properties of NaCl-H2O system

被引：0

作者：

Gong, Qingjie ^{[1
,2
]}

Yu, Chongwen ^{[2
]}

Zhang, Ronghua ^{[3
]}

Han, Dongyu ^{[2
]}

机构：

[1] China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China

[2] China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China

[3] Chinese Acad Geol Sci, Inst Mineral Resources, Beijing 100037, Peoples R China

来源：

PROCEEDINGS OF THE IAMG '07: GEOMATHEMATICS AND GIS ANALYSIS OF RESOURCES, ENVIRONMENT AND HAZARDS | 2007年

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Revised equations for determining the critical properties of NaCl-H2O system were fitted on the previous critical data of NaCl-H2O solutions. They are T = 374e(0.02267S+0.00004277S2) , P = 221e(0.04156S+0.1 160S1/2) and V = 3.11e(-0.23594 Psi+0.002837 Psi 2) where T, P, V and S are the critical temperature, critical pressure, critical volume and the salinity of NaCl-H2O solution with the units of degrees C, bar, cm(3)/g and weight percent of NaCl respectively, and Psi=ln(S+1). These equations are valid for the salinities up to 36.6% NaCl by weight and temperatures up to 900 degrees C, which are adequate for the study on the mechanism of supercritical geofluids taking part in the hydrothermal metallic mineralization.

引用

页码：751 / +

页数：3

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