Xuzhou Fengbao Mining Co., Ltd.

Xuzhou fengbao mining co. Ltd. Is a major manufacturer of silica(quartz)products such as high purity silica sand, silica powder, micro-silica powder, (crystal)powderandfusedsilicalumpand powder, etc. These products are widely used as materials for(optical)glass, optical fiber, electrical, electronic, semiconductor, epoxy molding compound(emc), paint, coating, ceramic, chemical, building, foundry, precision casting, refractory and abrasives industries etc. The detailed specifications are as follows:

1. Quartz (silica) sand High purity grade: Sio2:99.60%min-99.98%min ; fe2o3:1-35ppm max. ; size:2-200 mesh

Refined grade: Sio2:99.50%min-99.90% min ; fe2o3:50-300ppm max. ; size:2-325 mesh

General grade: Sio2:98.00%min-99.50% min ; fe2o3:400 -1200ppm max. ; size:2-400 mesh

2. Quartz (silica) stone Special grade: Sio2:99.96%min; fe2o3:4ppm max.

1st grade: Sio2:99.90%min; fe2o3:40ppm max.

2nd grade: Sio2:99.80%min; fe2o3:100ppm max.

3rd grade: Sio2:99.60%min; fe2o3:300ppm max.

3. Fused quartz (silica) 1st grade: Sio2:99.9% min; fe2o3:30ppm max..

2nd grade: Sio2:99.8% min; fe2o3:60ppm max..

3rd grade: Sio2:99.7% min; fe2o3:100ppm max..

4. Fused quartz (silica) powder

Sio2:99.5-99.9% max. ; fe2o3:3-180ppm max. ; size:4-2000mesh.

5. Microsilica powder (1) sio2:99.90%min; fe2o3:10ppm max. ; al2o3:50ppm max; size:300 mesh

(2) sio2:99.80%min; fe2o3:50ppm max. ;al2o3:50ppm max;size:400 mesh

(3) sio2:99.70%min; fe2o3:100ppm max. ;al2o3:60ppm max; size:600 mesh

6. Natural crystal powder Sio2:99.90%min-99.99%min, size:2-300 mesh

7. Quartz tube: Clear fused quartz tubing, ozone-free or germicidal quartz tubing, uv-block quartz tubing.