Recrystallisation

Re-Crystallisation of Raw Salt to High Quality NaCl

Highlights

Re-crystallising rock salt or solar salt is a very energy efficient means of producing high quality vacuum salt characterised by:


1. Minimal Steam Consumption

  • Raw salt dissolved at high temperature
    → Evaporation load reduced
  • Thermo compression (ejectors)
    → Less live steam required
  • Number of stages → Less live steam required

2. High Product Purity

  • Low grade raw salt
    → Is converted to high quality product
  • Fluctuations in raw salt composition
    → Have minimum impact upon product quality
  • No brine purification required
    → Lower operating costs

3. Low Scaling

  • Direct contact preheaters
    → No heat transfer surfaces
  • Flash / cooling evaporators
    → No heat transfer surfaces

Plant Characteristics

  • Production capacities up to 250’000 tons / year
  • Advanced concepts to minimise operating costs
  • Plants can be designed for a wide range of raw salt compositions
  • No thickener needed – centrifuge fed directly from salt leg
Circulation Pump
Circulation Pump

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