Lithium-rich continental brines are highly saline solutions with total dissolved solids in the order 300 g L-1, but Li+ concentrations around 1% only. A drastic increase in the ratio of Li+ to other cations' concentration is a must for an efficient lithium recovery. Here we present results on the use of membrane electrolysis coupled to crystallization as a new methodology to separate a large share of Na+ present in a real brine sample. In a 3 -compartment reactor, cations selectively migrate from the middle compartment through a cation exchange membrane to the cathodic compartment, where water electrolysis produces alkalinisation, and through CO2 spurging sodium bicarbonate precipitation is triggered. By following the real time concentrations in middle and cathodic compartments, we were able to prove the proposed methodology, and recover a solid with a purity of 99.5%. A coulombic efficiency of (95 +/- 5)% was calculated, and the separation coefficients showed a pre-ferential migration in the order K+ > Na+ > Li+. The methodology produces fresh water as a by-product, with total salinity 2 orders of magnitude lower than the feed. 3 different applied current density values were tested. At 10 A m(-2), 331.3 kWh are needed to treat 1 m(3) of brine.
机构:
Univ Nacl Jujuy, CONICET, Ctr Desarrollo Tecnol Gen Manuel Savio, Ctr Invest & Desarrollo Mat Avanzados & Almacenam, Palpala, Jujuy, ArgentinaUniv Nacl Jujuy, CONICET, Ctr Desarrollo Tecnol Gen Manuel Savio, Ctr Invest & Desarrollo Mat Avanzados & Almacenam, Palpala, Jujuy, Argentina
Flexer, Victoria
Fernando Baspineiro, Celso
论文数: 0引用数: 0
h-index: 0
机构:
Univ Nacl Jujuy, CONICET, Ctr Desarrollo Tecnol Gen Manuel Savio, Ctr Invest & Desarrollo Mat Avanzados & Almacenam, Palpala, Jujuy, ArgentinaUniv Nacl Jujuy, CONICET, Ctr Desarrollo Tecnol Gen Manuel Savio, Ctr Invest & Desarrollo Mat Avanzados & Almacenam, Palpala, Jujuy, Argentina
Fernando Baspineiro, Celso
Ines Galli, Claudia
论文数: 0引用数: 0
h-index: 0
机构:
Consejo Nacl Invest Cient & Tecn, INECOA, Inst Ecoreg Andinas, Ave Bolivia 1661, San Salvador De Jujuy, Argentina
Univ Nacl Salta, Fac Ciencias Nat, Ave Bolivia 5150, RA-4400 Salta, ArgentinaUniv Nacl Jujuy, CONICET, Ctr Desarrollo Tecnol Gen Manuel Savio, Ctr Invest & Desarrollo Mat Avanzados & Almacenam, Palpala, Jujuy, Argentina
机构:
Wetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, NetherlandsWetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, Netherlands
Galama, A. H.
Hoog, N. A.
论文数: 0引用数: 0
h-index: 0
机构:
Wetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, NetherlandsWetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, Netherlands
Hoog, N. A.
Yntema, D. R.
论文数: 0引用数: 0
h-index: 0
机构:
Wetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, NetherlandsWetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, Netherlands
机构:
Univ Nacl Jujuy, CONICET, Ctr Desarrollo Tecnol Gen Manuel Savio, Ctr Invest & Desarrollo Mat Avanzados & Almacenam, Palpala, Jujuy, ArgentinaUniv Nacl Jujuy, CONICET, Ctr Desarrollo Tecnol Gen Manuel Savio, Ctr Invest & Desarrollo Mat Avanzados & Almacenam, Palpala, Jujuy, Argentina
Flexer, Victoria
Fernando Baspineiro, Celso
论文数: 0引用数: 0
h-index: 0
机构:
Univ Nacl Jujuy, CONICET, Ctr Desarrollo Tecnol Gen Manuel Savio, Ctr Invest & Desarrollo Mat Avanzados & Almacenam, Palpala, Jujuy, ArgentinaUniv Nacl Jujuy, CONICET, Ctr Desarrollo Tecnol Gen Manuel Savio, Ctr Invest & Desarrollo Mat Avanzados & Almacenam, Palpala, Jujuy, Argentina
Fernando Baspineiro, Celso
Ines Galli, Claudia
论文数: 0引用数: 0
h-index: 0
机构:
Consejo Nacl Invest Cient & Tecn, INECOA, Inst Ecoreg Andinas, Ave Bolivia 1661, San Salvador De Jujuy, Argentina
Univ Nacl Salta, Fac Ciencias Nat, Ave Bolivia 5150, RA-4400 Salta, ArgentinaUniv Nacl Jujuy, CONICET, Ctr Desarrollo Tecnol Gen Manuel Savio, Ctr Invest & Desarrollo Mat Avanzados & Almacenam, Palpala, Jujuy, Argentina
机构:
Wetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, NetherlandsWetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, Netherlands
Galama, A. H.
Hoog, N. A.
论文数: 0引用数: 0
h-index: 0
机构:
Wetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, NetherlandsWetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, Netherlands
Hoog, N. A.
Yntema, D. R.
论文数: 0引用数: 0
h-index: 0
机构:
Wetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, NetherlandsWetsus, European Ctr Excellence Sustainable Water Technol, Oostergoweg 9, NL-8911 MA Leeuwarden, Netherlands