Specification :

SA-2 Special resin for amino acid extracting
1. Description
It is a kind of new product which specially used for extraction of amino acid, with modern technics “ twice polymerization with once pore-forming� . It has suitable skeleton construction, uniform pore size, and particular micropore constitution, so it can work with large exchange capacity, strong anti-penetration performance and good physical strength. When adsorbing the amino acid, it proves that it has large adsorptive capacity ( general size:  140kg/ m3, improved type can work better) , speedy adsorption and elution, Strong contamination resistance and long useful life. Our this product has been appraised by specialist of USTC ( University of Science and Technology of China) , the quality has reached international advanced level in the like products

2.Typical Physical and Chemical Properties:
` Polymer Matrix Structure Crosslinked Polystyrene Divinylbenzene
aPhysical Form and Appearance Golden yellow color Spherical beads
bFunctional Groups R-SO3É
cIonic Form , as shipped Na+
dTotal exchange capacity ( dry)  e4.5mmol/ g
eTotal Capacity, Na+ form, wet, volumetric e2.0eq/ l min
fMoisture Retention, Na+ form 43-47%
gParticle Size Range: General sizen 0.315mm-1.25mm
Small size 0.315mm-1.00mm
Big size 0.50mm-1.25mm
hUniformity Coefficient ( max.) : 1.6
ieffective size: e0.50mm
~ Reversible Swelling: Na+ ’ H+ ( max.) 7%
 Shipping Weight ( approx.) : 780 -880g/ l
€ Specific Gravity, moist Na+ Form: 1.28
� Temperature Limit: 120° C ( 250 ° F)
‚ pH Range, Stability: 0 - 14

3.Suggested Operating Condition
` Maximum Temperature: Na+ Form 120° C ( 248oF) max.
H+ Form 100° C ( 212oF) max.
aBackwash Rate: 25 to 50% Bed Expansion
bRegenerant Concentration: Hydrogen Cycle 3% HCl or 2 to 3% H2SO4
Sodium Cycle 6% to 8% NaCl or 3% NaOH

cRegenerant dosage: HC1 or H2SO4 HC1 or H2SO4 volume: resin volume = 3: 1
NaCl volume: resin volume = 2: 1
NaOH volume: resin volume = 3: 1
dRegenerant Flow Rate: 2 to 4 BV/ h
eRegenerant contact Time: At least 40 minutes
fService Flow Rate: 10-25m/ h
4.Applications
It is mainly used in extracting of all kinds of aminophenols, especially for lysine, glutamic acid, glutamine and so on