DOWEX Ion Exchange Resins for Separation of Alkali Metals from Liquid Media
| |
|
| Alkali Metals |
| Sodium - Na |
Potassium - K |
| Rubidium - Rb |
Cesium - Cs |
| Francium - Fr |
|
Alkali metal ions are mono-valent cations and are generally sorbed by cation exchange resins.
|
|
Applications
Water/Wastewater: Removal of alkali metals from water and organic solvents via ion exchange is common in chemical, petrochemical, oil refining, semiconductor manufacturing, and power utility plants. In waters with low levels of dissolved salts, strongly acidic cation exchange resins such as DOWEX™ G-26 (H) cation exchange resin are employed. Under alkaline conditions, a weak acid cation exchange resin such as DOWEX MAC-3 will provide higher capacity and easier regeneration.
Alkali metals can be removed from water with reverse osmosis membranes.
DOWEX Ion Exchange Resins
| Product |
Description |
Type |
Matrix |
Total
Exchange
Capacity*
eq/l (kgr/ft3) |
Available
Forms |
|
DOWEX G-26 (H)
|
Uniform particle size strong acid cation exchange resin for specialty demineralization and catalyst applications. |
Strong Acid Cation |
Styrene-DVB, Gel |
2.0 |
H+ |
|
DOWEX MAC-3
|
A macroporous weak acid cation exchange resin used for water softening, dealkalization, and demineralization applications. |
Weak Acid Cation |
Polyacrylic, Macroporous |
3.8 (83.0) |
H+ |
®™* Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow
