SL Lithium NF 8040 HS 50 Sulfate Removal Nanofiltration Membrane has a higher removal rate of sulfate in brine with a lower removal rate of calcium and magnesium, therefore, scales including calcium sulfate ones can be avoided.

SL Lithium NF 8040 HS 80 High Pressure Nanofiltration Membrane has a rather high retention rate of magnesium ions and other ions with high valence, therefore, it can effectively separate magnesium form solutions to achieve high efficient separation of magnesium and lithium ions in brine, and to significantly reduce magnesium-lithium ratio and realize fresh water preservation by its efficient utilization.

SL Lithium NF 8040 HS 40 carbonate removal nanofiltration membrane are usually negative charged, which impedes the permeation of multivalent ions (e.g., carbonate ions) through electrostatic interactions. In addition, carbonate ions and the macro-molecular substances that formed by combing with them can be better retained, thus achieve the retention of carbonate.

SL Lithium NF 8040 HS 60 boron removal nanofiltration membranes can effectively remove boron, which usually exists in brine in the form of boric acid or borate from brine.

An unique feature of SL Lithium NF 8040 HS 70 Nanofiltration membrane is that its retention of uncharged organic molecules with a molecular weight of about 150-300 daltons.