Rheological properties of sodium metatungstate in aqueous solutions - Details

author：

Ku, Jian Gang (Ku, Jian Gang.) ^[1] (Scholars：库建刚) | He, Kui (He, Kui.) ^[2] | Chen, Hui Huang (Chen, Hui Huang.) ^[3] | Liu, Wen Yuan (Liu, Wen Yuan.) ^[4] (Scholars：刘文元)

Indexed by：

EI Scopus

Abstract：

Sodium　metatungstate　(SMT)　solution　is　an　inorganic　heavy　liquid　which　is　widely　used　in　density　fractionation.　However,　rheological　properties　of　aqueous　SMT　solutions　have　never　been　fully　researched.　The　objective　of　the　present　work　was　to　study　the　rheological　properties　of　aqueous　SMT　solutions　and　effects　of　temperature　and　density　on　the　apparent　viscosity.　The　steady　flow　experimental　data　was　fitted　using　Herschel-Bulkley　model.　The　results　show　that　aqueous　SMT　solutions　of　different　density　are　pseudoplastic　fluids　and　the　flow　curves　of　SMT　solutions　were　described　by　the　Hershel-Bulkley　equation.　The　apparent　viscosity　decreases　monotonically　with　increasing　temperature　under　the　same　density　and　increases　exponentially　with　increasing　density　at　the　fixed　temperature.　Rheological　properties　of　aqueous　SMT　solutions　can　be　applied　in　the　calculation　of　density　fractionation　efficiency　and　provides　a　theoretical　basis　for　flow　simulation.　©　(2014)　Trans　Tech　Publications,　Switzerland.

Keyword：

Electrical engineering Rheology Sodium Solutions Temperature Viscosity

Community：

[ 1 ] [Ku, Jian Gang]College of Zijin Mining, Fuzhou University, Fuzhou, Fujian, 350116, China
[ 2 ] [He, Kui]College of Zijin Mining, Fuzhou University, Fuzhou, Fujian, 350116, China
[ 3 ] [Chen, Hui Huang]College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
[ 4 ] [Liu, Wen Yuan]College of Zijin Mining, Fuzhou University, Fuzhou, Fujian, 350116, China