D418 Macroporous Polymer Resin Industrial Water Treatment Chemicals

 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./* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.