Company Profile
Product Description
Special Anion-Exchange Resin for Demineralization & Decolorization
in Photovoltaic Crystalline-Silicon Cutting Filtrate for Recycling Use
PRODUCT DATA SHEET:
D2 is an anion exchange resin synthesized with special technology. For its superior features of highly firm and solid structure and low swelling rate of granularity after reversible ionic replacement reactions, this resin performs with its high anti-osmotic efficiency and good oxidation resistance. This resin remains function with excellent ions exchange &adsorption and de-coloring performance within organic solutions, for its superior feature that mesh porosity of the resin does not vary from solution swelling. It is specialized in removing radicals of minerals(ie. metal salts) and organic molecules from industrial waste fluids for recovery of its original before-use composition and thus for further recycling use.
Specifically, the most widely used scenario of D2 is to remove such non-polarity and negative-polarity organic molecules as dark pigments and in particular selective removal of strong-acid anions of minerals remaining in the crystalline silicon cutting filtrate used in the production of photovoltaic solar silicon wafers.
Depending on filtrate PH and solute composition, combing D1 with D2 together is a commonly-used scheme for removing strong-acid minerals(ie. metal salts) for demineralization and separating organic molecules of both negative-polarity and non-polarity(ie. liquid color). Alternatively, with D3 for removal of both strong-acid and weak-acid radicals, if applicable, in order to recover original PH, viscosity, refractive index, conductance, colorless &transparent properties of polyethylene glycol(PEG) aligning with its properties in fresh cutting fluids, serving the ultimate purpose of recycling use for silicon cell production lines in photovoltaic industry.
TECH-INDEXES: |
SPECIFICATIONS: |
Matrix: |
Polymerized copolymer |
Physical form: |
Offwhite opaque spherical beads |
Ionic form as shipped: |
Free Amine(FA) form |
Moisture holding capacity(%): |
50 to 60% |
Total bulk exchange capacity: |
≥1.41mmol/ml |
Moisture true density: |
1.03~1.07g/mL |
Moisture bulk density: |
0.65~0.72g/ml |
Effective particle size: |
0.40~0.70mm |
Particle size: |
0.315~1.25mm |
Uniformity coefficient: |
≤1.6 |
Integrated beads ratio after grinding test: |
≥90℅ |
Maximum swelling rate of resin after ionic state transition: |
FA ->Cl- : 20% |
SUGGESTED OPERATING CONDITIONS:
Maximum operating temperature: |
100°C |
Minimum bed depth: |
700mm |
Service flow rate: |
5~40 BV*/h |
Maximum service velocity: |
60 m/h |
Regenerant: |
NaOH |
Na2CO3 |
NH3H2O |
Level(Counted by 100%): |
50~110g/L |
60-140g/L |
40~100g/L |
Concentration: |
2~4% |
2~4% |
2~4% |
Flow rate: |
2~8 BV*/h |
4~8 BV*/h |
2~8 BV*/h |
Minimum contact time: 30min |
Slow rinse: |
5 BV at regeneration flow rate |
Fast rinse: |
10 BV at service flow rate |
*1 BV(Bed Volume)= 1m3 solution per m3 resin |
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Application Fields
Factory Overview
QC & QA System
Pre-sales & After-sales VAS
Type of Packing & Shipping
1) Bags-on-Pallet
2) Bulk Bag-on-Pallet
3) Packet-in-Box-on-Pallet
Courier Services for Air Freight/Express(for sample proofing)
FedEx(TNT), UPS,DHL(BLUE DART), EMS, SF, ZTO, JD Logistics, Aramex,etc
Shipping Services for Sea Freight
ONE, MSC, MSK, COSCO, CMA, APL, RCL, KMTC, ZIM, YML, OOCL,MCC,ESL
PI Quotation Validity: 15days
Accepted Trading Incoterms: CIF(Insurance&freight fees included)
Payment terms: T/T Payment Received Before Shipment
Port of Loading: Shanghai Port, China