Depleted Brine

Depleted Brine Concentration

Highlights

Concentration of depleted brine from typically 190 g/l to 310 g/l:

  • Na₂SO₄ can be removed by crystallization and filtration
  • Sodium iodide can be extracted selectively

Feedstocks

Depleted brine from chlor-alkali plants – all concentrations


Process Characteristics

  1. Split feed to reduce equipment size
  2. Na₂SO₄ discharged as solid to minimise NaCl losses
  3. NaClO₃ discharged in purge
  4. Exact control of return brine concentration
  5. High plant availability
Circulation Pump
Circulation Pump
Dry Salt Conveying
Dry Salt Conveying

SEP Salt & Evaporation Plants Ltd
Neuwiesenstrasse 69
CH-8400 Winterthur
Switzerland

Phone +41 52 260 50 70
Fax      +41 52 260 50 80
info@sepwin.ch