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Perlite Sand
1. Perlite sand is formed from perlite ore by crushing and screening.
2. General size: 8-12 mesh, 12-18 mesh, 18-20 mesh, 20-30 mesh, 30-50 mesh, 50-70 mesh. Other sizes could be produced as requested.
Size and Application
8-12 mesh/12-18 mesh /18-20 mesh |
After expanding, it is widely used as the materials of keeping warm and heat insulation in the field of construction. |
20-30 mesh/30-50 mesh |
After expanding, it can be used as covering agent and deslagging agent in the industry of casting steel. |
| 50-70 mesh | After expanding, it can be used as the filtering agent in the field of beer and medicine, and the insulation for cryogenic tanks of oxygen machine. |
Chemical Composition
| SiO2 | TiO2 | Al2O3 | Fe2O3 | MnO | MgO | CaO | K2O | Na2O | P2O5 |
| 72% | 0.09% | 12.31% | 0.54% | 0.06% | 0.14% | 1.00% | 4.67% | 3.29% | 0.04% |
Expanded Perlite
1. Type: open cell, closed cell ,hollow cell
2. Colour : white
3. Features: porous ,lightweight, non-toxic, heat insulating, sound absorbing, water resisting, corrosion resisting
Application of Expanded Perlite
| Construction |
1. lightweight aggregate 2. light insulation materials 3. fireproof materials 4. insulation mortar |
| Industry | insulation in the cryogenic projects, industrial equipment, pipe insulation. |
| Agriculture and horticulture |
1. soil amendment 2. soilless cultivation base 3. slow-released agent of pesticide |
| Others |
1. filter aid 2. filler 3. abrasive materials |
Perlite Filter Aid
1. Colour:white
2. Bulk density: 230~460kg/m3
3. Features: low- content harmful metals and non-metals
rapid filter velocity
good filtering effects
4. Use industry : beer or drinking, pharmaceutical, paint or coating, oil
| Item | High-speed Type | Medium-speed Type | Low-speed Type | |||
| GK-115 | GK-114 | GK-113 | GK-112 | GK-111 | GK-110 | |
| Bulk density (kg/M3) | <0.18 | 0.18-0.22 | 0.20-0.25 | |||
| Permeability % | >2.0 | >1.5 | >1.0 | >0.5 | <0.5 | 0.2 |
| Suspended matter % | ≤15 | ≤5 | ≤3 | ≤2 | ≤1 0 | 0 |
| +100 mesh % | ≤50 | ≤30 | ≤15 | ≤5 | ≤3 | ≤1 |
New Closed Cell Perlite
| Technical Property | New Closed Cell Perlite | Traditional perlite |
| Particle(mm) | 0.1-1.5 | 0.15-3 |
| Density(Kg/m3) | 100-200 | 70-250 |
| Thermal conductivity(w/m.k) | 0.047-0.054 | 0.047-0.054 |
| Balling rate | 70-90% | 0 |
| Closed cell rate | ≥95% | 0 |
| Water absorption ( by vacuum filtration %) | 50-85 | 360-480 |
|
Numerical tube pressure (volume loss rate in 1Mpa pressure) |
38%-46% | 76%-83% |
| Refractoriness | 1280-1360℃ | 1250-1300℃ |
| Operating Temperature | <800℃ | < 750℃ |
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