Factory Tour

Raw nepheline syenite ore is extracted from our own quarry at Jiulongshan using conventional drill-and-blast methods. Hydraulic excavators load the ore onto haul trucks for transport to the crushing station. Our geologists direct excavation toward the highest-quality ore zones, visually monitoring each mining face for consistency.

Deposit: 120M+ tons verified reserves. Method: open-pit. Equipment: CAT hydraulic excavators.

Run-of-mine ore is reduced to manageable feed size through a two-stage crushing circuit. The primary jaw crusher handles large boulders, while the secondary cone crusher reduces the material to approximately 10-20mm suitable for the wet grinding stage.

Output: 10-20mm crushed ore ready for wet grinding.

Crushed ore is mixed with water to create a slurry and fed into large ball mills. The wet grinding process reduces particle size to 100 mesh (150 microns) or 200 mesh (74 microns) depending on the product grade. Wet grinding is critical — it liberates iron-bearing mineral inclusions trapped inside larger grains, making them available for magnetic capture in the next stage.

Multiple ball mills operating. Ceramic grinding media available to eliminate steel contamination.

The ground slurry passes through multiple stages of high-intensity wet magnetic separation (HIWMS). Stage 1 captures strongly magnetic minerals (magnetite). Stage 2 captures moderately magnetic particles (biotite). Stage 3 uses maximum intensity for weakly magnetic iron-bearing minerals. This progressive approach achieves Fe2O3 as low as 0.08% in our K200 grade.

3 stages of separation. Fe2O3 reduction from ~0.4% (raw ore) to 0.08% (K200 finished product).

Purified slurry passes through hydrocyclone classifiers for precise particle size control, then through thickeners and filter presses to remove water. The recovered water is recycled back to the grinding circuit — a closed-loop system that minimizes water consumption and environmental impact.

Hydrocyclone classification. Filter press dewatering. Water recycling system.

Dewatered filter cake enters rotary dryers where hot air reduces moisture content to below 1.0%. The dried powder is packaged in either 1,200kg FIBC jumbo bags or 50kg PP woven bags, clearly labeled with product name, grade, batch number, and weight.

Rotary dryer. Moisture target: below 1.0%. Packaging: 1200kg jumbo or 50kg bags.

Every production batch undergoes comprehensive testing: XRF chemical analysis, laser particle size measurement, moisture verification, and firing whiteness evaluation at 1200°C. Approved product is stored in our enclosed warehouse ready for container loading and shipment.

100% batch testing. Independent 3rd-party verification available. COA with every shipment.