• Macroporous chelation resin

    Macroporous chelation resin

    Dongli’s wide range of chelating resins contain special functional groups that gives these resins superior selectivity for specific target metals. Chelation resins are found in a wide range of metals removal and recovery applications, from the primary recovery of precious metals as well as the removal of impurities that may be present as mere traces.

    DL401, DL402, DL403, DL405, DL406, DL407, DL408, DL410

  • Weak base anion exchange resin

    Weak base anion exchange resin

    Weak Base Anion(WBA) resins are polymer made by polymerizing styrene or acrylic acid and divinylbenzene and chlorination,amination . Dongli company can provide gel and macroporous types WBA resins with different crosslink. Our WBA are available in many gradings including Cl forms, uniform size and food grade.

    GA313,  MA301, MA301G, MA313

    Weakly basic anion exchange resin: this kind of resin contains weakly basic groups, such as primary amino group (also known as primary amino group) – NH2, secondary amino group (secondary amino group) – NHR, or tertiary amino group (tertiary amino group) – NR2. They can dissociate Oh – in water and are weakly basic. In most cases, the resin adsorbs the whole other acid molecules in the solution. It can only work under neutral or acidic conditions (such as pH 1-9). It can be regenerated with Na2CO3 and NH4OH.

  • Strong base anion exchange resin

    Strong base anion exchange resin

    Strong Base Anion(SBA) resins are polymer made by polymerizing styrene or acrylic acid and divinylbenzene and chlorination,amination .
    Dongli company can provide gel and macroporous types SBA resins with different crosslink. Our SBA are available in many gradings including OH forms, uniform size and food grade.

  • Weak acid cation exchange resin

    Weak acid cation exchange resin

    The Weak Acid Cation (WAC) resins are copolymerized by acrylonitrile and divinylbenzene and hydrolyzing it with sulfuric acid or Sodium hydroxide.

    Dongli company can provide macroporous WAC resins with different crosslink and gradings including Na form ,uniform particles size and food grade.

  • Strong acid cation exchange resin

    Strong acid cation exchange resin

    Strong Acid Cation (SAC) resins are  polymer made by polymerizing styrene and divinylbenzene and sulfonating with sulfuric acid. Dongli company can provide gel and macroporous types SAC resins with different crosslink. Our SAC are available in many gradings including H forms, uniform size and food grade.

    GC104, GC107, GC107B, GC108, GC110, GC116,  MC001, MC002, MC003

  • Mixed Bed Resin

    Mixed Bed Resin

    Dongli ready to use mixed bed resins are specially prepared high quality resin mixtures designed for direct purification of water. The ratio of component resins is engineered to provide high capacity. Performance of the ready to use mixed bed resin depends on the application. Several of the mixed bed resins are available with indicators which facilitate ease of operation when a simple visual indication of exhaustion is desired.

    MB100, MB101, MB102, MB103, MB104

  • Inert and Polymer beads

    Inert and Polymer beads

    Dongli’s Inert/Spacer resins are used to create a barrier in an ion exchange bed and keep the ion exchange beads exactly where they are supposed to be.  They can guard the bottom collectors, the top distributors and create separation between cation and anion layers in a mixed bed.  Inert/Spacer resins come in different sizes and configurations to cover a wide range of system configurations.

    DL-1, DL-2, DL-STR

  • Macroporous Adsorptive Resins

    Macroporous Adsorptive Resins

    Dongli’s adsorbent resins are synthetic spherical beads with defined pore structure, polymer chemistry and high surface area used for purification and selective extraction of target molecules in aqueous solutions. 

    AB-8, D101, D152, H103

  • DL408 Arsenic Selectivity Resin

    DL408 Arsenic Selectivity Resin

    Arsenic is a toxic substance with varying degrees of regulation. The standard MCL (maximum concentration level) for arsenic in drinking water for the USA is 10 ppb.

  • MA-202U (Macroporous Strong-Base Anion Exchange Resin)

    MA-202U (Macroporous Strong-Base Anion Exchange Resin)

    MA-202U is a high capacity, shock resistant, macroporous,Type I ,strongly basic anion exchange resin supplied in the chloride form as moist, tough, uniform, spherical beads .It have excellent osmotic stability, as well as good kinetic characteristics. The resin is used for the extraction of uranium from the pregnant solution in-situ leaching technology.

    Uranium is a naturally occurring weakly radioactive element. High levels of uranium in water may increase the risk of cancer and kidney damage. Most of the uranium that is ingested by food or drink by the human body is excreted, but some amounts are absorbed into the bloodstream and kidneys.