Specification :

Dowex Marathon C – Strong Acid Cation Resin
General Information
Dowex Marathon C resin is a high capacity, gel strong acid cation exchange resin of uniform bead size distribution. it is a based on a styrene-divinyl benzene copolymer matrix with sulfonate functional groups. Dowex Marathon C resin is specially designed to give high throughput and economical operation in both water and non-water applications. Because of its uniform particle size, this resin offers a number of advantages compared to conventional ( polydispersed) resins. The small uniform bead size of Dowwex Marathon C resin results in rapid exchange kinetics during operation, more complete regeneration of the resin, and faster, more thorough rinse following regeneration.
Recommended Operating Conditions
Maximum operating temperature: 120° C ( 250° F)
pH range 0-14
Bed depth, min. 800 mm ( 2.6 ft)
Flow rates:
Service/ fast rinse
Backwash
Co-current regeneration/ displacement rinse
Counter-current regeneration/ displacement rinse
5-60 m/ h ( 2-24 gpm/ ft2)
See figure 1
1-10 m/ h ( 0.4-4 gpm/ ft2)
5-20 m/ h ( 2-8 gpm/ ft2)
Total rinse requirement 2-5 Bed volumes
Regenerant 1-8% H2SO4, 4-8% HCl or 8-12% NaCl