Method for sulphate removal magnesium chloride brine

Details Method for sulphate removal magnesium chloride brine Method for sulphate removal magnesium chloride brine

1997-11-13

1999-05-04

Fortuna, Ana

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210651, 210653, 210641, 210636, B01D 6100

Patent

active

059001518

ABSTRACT:
Method for sulphate removal from concentrated MgCl.sub.2 solutions, where the solution is subjected to a high pressure nanofiltration process applying membranes having a dominantly negative surface charge.

REFERENCES:
patent: 5454952 (1995-10-01), Brewer
patent: 5458781 (1995-10-01), Lin
patent: 5587083 (1996-12-01), Twardowski
patent: 5616249 (1997-04-01), Hodgdon
Raman et. al, "Consider Nanofiltration for Membrane Separation", Chemical Engineering Progress, Mar. 1994.
Rautenbach et. al., Separation Potential of Nanofiltration Membranes, Desalination, 77 (1990) 73-84.

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