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Weak Base Anion Exchange Resin (WBA)
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Weak Base Anion Exchange Resin (WBA)

SEPLITE ® Weak Base Anion Exchange Resin

The Weak Base Anion Exchange Resin with primary, secondary, tertiary amine or mixed amine group as active functional groups show different strengths of alkalinity. Most weak Base Anion Exchange Resins with mixed amine group equiped a extremely high operating capacity with the ability to remove both strong and weak acids from solution.

There are two kinds of weak base anion exchange resins, Gel type and Macroporous type, which have acrylic backbone, styrene backbone or mixed backbone. Weak base anion exchange resins are more chemically stable and higher resistant to organic fouling than strong base anions.

The weak base anion exchange resin is easier to regenerate than the strong base resin, and can be efficiently regenerated with a small amount of sodium hydroxide.

Weak base anion exchange resins are commonly used in pharmaceutical, food engineering, and chemical engineering, such as the removal of mineral acid, organic acids and other organic materials, especially for removal of high molecular weight organic matters from aqueous solutions under low pH condition.

Typical Applications For Weak Base Anion Exchange Resin


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Category List
SEPLITE® LSC770 Polystrene, weak base anion resin, with macroporous Matrix.
SEPLITE® LSF907 Macroporous, polystyrene crosslinked with DVB, free base/Cl-
SEPLITE® LSF930A Food grade, macroporous, mainly designed for the food industrial application
SEPLITE® LSF930B Food grade, mainly designed for such as acid removal and sugar decolorization etc.
SEPLITE® LSF930C Application such as acid removal and decolorization of sugar, gelatin, grape must and etc.
SEPLITE® LSF973 Food grade, Macroporous, Polystyrene Crosslinked with DVB
SEPLITE® LSF9300 Macroporous, uniform particle size, food grade, polystyrene Crosslinked with DVB
SEPLITE® LX400 Food grade, Crosslinked, Free base
SEPLITE® LX6703 Acrylic, macroporous type, mixed base anion resins, Cl or NH4 form
SEPLITE MA921 Macroporous type, Styrene, Free base, floating bed
SEPLITE MA938 Macroporous type, Acrylic, Free base, organic acid removal
SEPLITE® MA939 Macroporous type,Acrylic, Free base, organic acid removal
SEPLITE® MA940 Macroporous type, Styrene, Free base
SEPLITE® MA940 BG Macroporous Type, Weak Base, ST-DVB, Cl- Form
SEPLITE® MA943 Macroporous Type, Free Base, ST-DVB
SEPLITE® MA950 Acrylic matrix, Free base or OH-
SEPLITE® Monojet™ MA9400 Uniform particle size, macroporous, styrene-divinylbenzene
SEPLITE® Monojet™ LSF9730 Food grade, macroporous, uniform particle size, for Sugar and Sweetener industries
SEPLITE® WA667 Gel type, acrylic, free base, decoloration of citric acid, sugar and antibiotics
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