Products

Kaoline

Aluminum Silicate Hydroxide
Al₂Si₂O₅(OH)₄

                The technical data kaoline

                          (raw ore)

There are plenty of kaolinite in mine field of DFL Minmet refractories Corp. The ore body is stable and has a high quality. Its 340, 000, 000 tons producible reserver provide a reliable resource for deeply processing.

Characteristics:

Grannularity                    ≤ 50mm                     ≥50mm

Kaolinite content                                              > 95%

Hardness                                                          3︿4 grade

Refractoriness                                                 1770︿1790 ℃

Loss on ignition                                               ≤ 14.5%

Specific gravity                                                2.6

pH                                                                   6

Components

                       Handsorting first grade        Handsorting second grade

     Al2O3                  39.3%                                           38%

     SiO2                   43.5%                                            44%

     Fe2O3                   0.7%                                             1.2%

     TiO2                     0.6%                                              0.7%

     K2O                     0.2%                                               0.3%

     Na2O                    0.2%                                              0.3%

     CaO                     0.3%                                               0.3%

     MgO                     0.3%                                               0.3%

     SO3                     0.03%                                             0.03%

     P2O5                    0.25%                                            0.25%

     MnO                     0.002%                                          0.002%

              The technical data of Kaoline

                               (GSK)

The GSK is made by the way of dry process, including de ferrization, superfine, surfacetreatment, and has a well particle distribution. The GSK can be used in rubber and paint oil as filling material, in sanitary ceramics, building ceramics, glazed material, high voltage electric porcelain, refractory material and polymerized aluminum as fundamental compounding receipt material.

Characteristics:

Degree of fineness (mesh)      325              800             1250

Rate of past sift(um >90%)     -43               -18              -10

Loss on ignition                                                 ≤14.5%

Refractoriness                                                 1770︿1790 ℃

Specific gravity                                                  2.6

pH                                                                     6

Components:

     Al2O3                             39%

     SiO2                              44%

     Fe2O3                            ≤0.7%

     TiO2                              ≤0.6%

     K2O+Na2O                       ≤0.4%

     CaO+MgO                        ≤0.6%

     SO3                               0.03%

     P2O5                              0.25%

     MnO                               0.002%

            The technical data of superfine calcined Kaoline

                                       (GSCK)

The GSCK is made by the process of well fragmentizing, calcining and surface treating.Because of its high lightness, well particle distribution and strong cover capacity, the GSCK can be used in many industries such as rubber, oil paint, cable, plastics, refine ceramics, paper, paint, fireproof coating material and abrasive resistant material, etc.

Charateristics

Fineness(mesh)          325        800       1250       2500         6250

Riddling(+325mesh%)   <0.5       <0.04     <0.02      <0.02       <0.02

Whiteness(%)            >85       > 90       >90        >90         >93

Water content                                   ≤1.0%

Specific gravity                                  2.7

pH                                                     6

Refractoriness                                   ≥1770℃

Components:

    Al2O3                             44%

    SiO2                              53%

    Fe2O3                            ≤0.7%

   TiO2                              ≤0.6%

   K2O+Na2O                       0.4%

  CaO+MgO                        0.6%