Proposed MVR pilot for concentrating and crystallising a sodium-containing LiCl solution, with two independently priced design options.
Project Background
The client requires separate proposals based on feed flow and evaporation rate for a pilot MVR system treating sodium-containing LiCl solution. The client-supplied design basis includes salinity up to 200000 ppm and no reported organics, but lacks the full composition, ppm basis, feed conditions, concentration endpoint, crystal targets, utility data and trial requirements. Eight-hour daily operation may be considered subject to confirmation.
Our Solution
The proposed package uses guarded pre-treatment to remove entrained solids, followed by a falling-film MVR evaporator for low-temperature concentration under vacuum. Vapour is condensed in a clean circuit, while the concentrated liquor is cooled in a crystalliser. Solid-liquid separation by filtration or centrifugation, followed by washing, drying and sealed residue handling, produces a testable crystal fraction. Mother liquor is returned to a controlled tank for further concentration, with purge or disposal subject to composition and client requirements. Condensate is sampled before reuse or discharge. Both feed-flow and evaporation-rate cases will be costed independently. Final metallurgy, materials, heat-transfer area, energy estimates and performance require confirmed laboratory data and operating hours.
What We Asked First
Please confirm the complete Li⁺, Na⁺ and Cl⁻ composition and ppm basis; pH, temperature, density, viscosity, suspended solids, concentration endpoint, target salt, purity and moisture, mother-liquor and condensate destinations, utilities, trial method and material quantity, supply boundary and destination port.
Proposed Process Train
- 1Feed receiving and sampling
- 2Pre-treatment and clarification
- 3MVR concentration
- 4Vacuum vapour condensation
- 5Product cooling and crystallisation
- 6Centrifugation or filtration
- 7Mother-liquor recycle or disposal
- 8Sealed residue and wash-water handling
- 9Condensate collection and quality verification
For Similar Projects
Prepare representative feed and concentrate samples, solvent and salt analysis, utility availability, batch duration, recovery targets, residue handling requirements and acceptance criteria before final engineering design.
Ref. A-011. Client identity is withheld under our client-confidentiality policy. Capacity is shown as a capacity class (design value rounded up to the next 5 at its second significant digit).
