D418D418 macroporous styrene chelating resin is a cation
exchange tree with a phosphoramidite functional group. This resin
is basically chelating to all divalent metal ions, especially for
alkaline earth metals with special selectivity. D418 is an ideal
resin suitable for salt water softening. It can be used to remove
divalent metal cations from industrial wastewater and other
industrial water. D418 is mainly used for refining secondary brine
in the process of making caustic soda by ion membrane method. It
can reduce calcium and magnesium ions in secondary brine to 20 ppb,
and resin exchange Both capacity and mechanical strength are better
than similar aminolin acid resins abroad. In addition, D418 can
also be used for the recovery of heavy metals in electroplating
wastewater. PrecautionsResin should be wet state
preservation. The best temperature is above 0ºC. Resin should be
put into a closed space or add in salt water of 5% or above if not
used for a long time.Should be anti-freezing during transportation.
Do not place heavy objects on the resin in case being
crashed.Generally requires alkali- water - acid - water flow path
for processing. Strict requirement needs three circulation before
coming to final ion kenel.Need to consider different transformation
expansion rate to set aside enough space to prevent resin overflow
and ensure the appropriate liquid level height; Column diameter
ratio should be within a reasonable range and avoid bias current;
Use wet packed column or back-flushing to wash away bubbles inside
resin layer.Before liquid going into the resin column, steps as
flocculation, filtration, or sand-filtration should be taken so
that it doesn't jam resin pore with suspended solids .Resin inside
the column that hasn't been used for a long time should be storaged
outside of the column after washing, or adding salt water in the
salt resistant medium while keeping liquid level not dehydrated
with usual backwashing to loosen resin in case of
agglomeration. IndexNameSpecificationAppearance
Pale yellow opaque spherical beads Ionic Form
Na+ Weight Exchange Capacity
≥4.5mmol/g Volume Exchange Capacity
≥1.9mmol/ml Real Density (g/ml)
1.10~1.18g/ml Bulk Density (g/ml)
0.70~0.80g/ml Water Retention Capacity
55%~65% Particle Size Range 0.315~1.25
mm≥95 Uniformity Coefficient ≤1.6 Whole
Bead Count(%) ≥95% Precautions1. The resin
contains water and should be kept at a temperature of 5-40ºC during
storage and transportation to prevent freezing at low temperatures
and mildew at high temperatures, which affects its use.2. Because
the resin is exposed to the air or loses water for any reason, do
not directly inject water to prevent the resin from floating. It
can be impregnated with ethanol to restore it to a wet state and
then cleaned with water.3. The adsorbed substance (solution) should
be subjected to impurity removal, filtration, and clarification
before being put on the column, so as to avoid impurities entering
the resin column as far as possible, so as not to cause acute resin
poisoning and affect the use.4. Resin is interrupted. After washing
with water, it should be stored in soaked clean water and changed
regularly to prevent contamination. It can also be immersed in
saturated saline or ethanol for long-term
storage. Q1. What is the existing capacity to
produce? The annual output of cation and anion exchange resin
is more than 20,000 tons,. Q2. What are our
advantages?A. Our delivery time can be guaranteed. We use
environment-friendly machine and built in national level
chemical industrial parkB. We have complete production lines.
We can custom made the products as
customer requirementsC. We are near
to Tianjin port and QingDao Port, so we have lower
cost on transportation. Q3. How about our quality of
products?We will test all the raw materials and arrange them into
the factory after they are qualified. After the completion of
production and testing, only qualified products can be packaged. We
strictly follow the production process. Workers with more than 10
years of production experience, timely deal with problems and make
registration, and issue 8D report. Q4. Can I get free
sample? Yes, you can get 200g free sample, you just need to
pay for the courier fee. Q5. What's your delivery
time?15- 30 days after receiving
your payment, depends on different products. Q7. How
should I pay?We accept all kinds of payment ways. such as Alibaba
trade Assurance, T/T, L/C,D/A,D/P, O/A,West Union. Q8. Do
you have other Water purification equipment and
also can supply complete after-sales service.We can also
provide these products to meet your requirements, we also have a
team to do the after- sales service. Q9. Is it
possible to custom the labels with my own design?Yes, and you just
need to send us your bag design, then you can get you want./*
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