Weak Base Anion Exchange Resin (WBA)
SEPLITE ® Weak Base Anion 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
Removal of mineral acid
Removal of organic matter
Pure water preparation
WQA Gold Seal Certificate
SEPLITE MA938 Macroporous type, Acrylic, Free base, organic acid removal
SEPLITE WA667 Gel type, Acrylic, Free base, decoloration of citric acid, sugar and antibiotics
SEPLITE MA940 Macroporous type, Styrene, Free base
SEPLITE MA921 Macroporous type, Styrene, Free base, floating bed
SEPLITE MA939 Macroporous type,Acrylic, Free base, organic acid removal