Ground Calcium Carbonate (GCC)

Grounded Calcium Carbonate is processed through naturally occurring high purity calcite ores containing CaCO3 as major component. The selected raw material has to be washed, crushed ,fine grinded and then classified precisely to attain the products of exceptional consistent & desirable quality available in a variety of grades.

Two Processes Are Used To Produce GCC

A dry process line (GCC), involves a series of crushing and fine milling stages that produces a fine (micronized) product. During the processing, the material is processed & classified in dry form to attain the desired quality of the products. Thefineness (D 50) of the standard products thus obtain is 2-5) microns.
In the wet process (WGCC), the coarser powder materials obtain initially from dry process used as the raw material. The powder raw material prepared in slurry form after adding the suitable additive then made to pass through stages of wet attrition mills to get ultrafine product slurry with low viscosity of close PSD band. The slurry has The calcium carbonate slurry thus obtained is filtered & supplied through tankers & barrels or packed in dried form.

Features

  High Brightness

  Large Surface Area

  Controlled Particle Size

  High stability

  Correct formulation

  Easy to use

Applications

  Adhesives & Sealants

Animal & Pet Feeds

  Construction

  Fertilizers

  Glass & Ceramics

  Paint & Surface Coating

  Paper filler & coating pigments

  Plastics

  Rubber & Elastomers

Specification

Typical Chemical properties GCC WGCC
Calcium Carbonate as CaCo3 96-98 97-98
Magnesium Oxide as MgO 0.4- 1.0 0.15- 0.5
Silica as SiO2 0.3-0.8 0.3-0.5
Alumina as Al2O3 0.1-0.3 0.1-0.2
Soluble Alkali as Na2O ∠ 0.05 0.05-0.1
Iron As Fe ∠100 ppm ∠100 ppm
Polyphosphates __ 0.5-1.2 %
Chloride Traces Traces
Loss on Drying 0.4 Max ----
Ph 9.5 ± 0.5 8-10
Loss on ignition ( Solid/ solid %) 43.0-44 43-44
Typical Chemical properties
Color White White
Brightness (ISO) 93% ±1% 93% ±1%
Mean Particle Size Range 1.5 -5 Microns 0.8 -1.5 Microns
Bulk Density (gm/cc) 0.9-1.35
Brookfield Viscosity at 70% ( #2 100 RPM) --- 150-300 CPS

Packaging

  Powder GCC is supplied in 50kg HDPE Bags. It can also be customized as per individual requirements. Wet GCC is supplied in 30 Kg barrel as well as tankers as per the customer needs.

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