AMBERLYST™ Ion Exchange Resins
Weak Base Anions - Sorted in alpha-numerical order
AMBERLYST™ polymer based weak base anionic ion exchange resins involve the use of functionalized styrene divinylbenzene, polyacrylic or formophenolic copolymers with different surface properties and porosities. The functional group is generally a tertiary amine group. These resins are supplied as macroreticular spherical beads or in case of the formophenolic resin as granulars. They have been used for 40 years in a wide variety of reactions and purification processes.
Depending on the application, the separation to be done, and the selectivity
required, different copolymers will give different results in the separation.
The three weak base anionic resins have been optimized to provide high
operating capacities, good elution, excellent chemical resistance, low
rinse water requirement and little swelling.
|
Product Name
|
Matrix
|
Functional Groups |
Capacity
eq/L |
Max. Op. Temp.
°C  °F |
Remarks
|
|
|
Amberlite IRA96RF
|
Styrenic MR* |
Tert. Amine |
1.25
|
100 | 210 | Gold recovery from cyanide liquors. |
|
Amberlyst™ A21
|
Styrenic MR* |
Tert. Amine |
1.30
|
100
|
210
|
Removal of Fe3+ and Zn2+ from HCl. Phenol and glycerin deacidification. Rinse water recycling and general demineralization. Excellent resistance to degradation and fouling. Good elution. |
|
Amberlyst™ A23
|
Phenolic MR* |
Tert. Amine |
1.80
|
50
|
120
|
Phenol deacidification. Good selectivity of sulphates vs chlorides. Very high operating capacity and low swelling. |
|
Amberlyst™ A24
|
Acrylic Gel |
Tert. Amine |
1.60
|
50
|
120
|
Ag recovery from photographic effluents. Formaldehyde deacidification. Very high capacity. Good adsorption and desorption of organics. |
|
*MR = Macroreticular
|
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For sampling, pricing and availability of AMBERLYST™ catalysts please contact your Rohm and Haas sales representative.
Some of our Amberlite and Amberjet ion exchange resins and Amberlyst catalysts are available in different particle size grades. For more information please consult your Rohm and Haas sales representative.
