Perlite 4-10mm
◆ Unexpanded Perlite is processing by crushing, screening of the original perlite ore, we can produce according to the needs of customers into a variety of perlite sand products, the current specifications are :8-12 mesh ,12-18 mesh ,18-20 mesh ,20-50 mesh ,30-50 mesh ,50-70 mesh ,70-90 mesh ,90-120 mesh and other products.
Chemical property :
SiO2% | Al2O3% | Fe2O3% | CaO % | K2O % | Na2O % | MgO % | H2O % |
68~74 | ±12 | 0.5~3.6 | 0.7~1.0 | 2~3 | 4~5 | 0.3 | 2.3~6.4 |
Physical property :
Terms | A | B | C |
Specific Gravity | 2.26 | 2.4 | 2.32 |
Hardness(HV) | 648 | 643 | 652 |
Expansion Rate | K0≥15 | K0≥15 | K0≥18 |
Expa-temperature(℃) | 1000-1200 | 1050-1250 | 1200-1300 |
Pre-heating (℃) | 300-400 | 300-400 | 350-420 |
Usage:
(1) 8-12mesh ,12-18mesh ,18-20mesh perlite sand after expansion can be as insulation, thermal insulation material widely used in construction.
(2) 20-50mesh ,30-50mesh pearlite sand by the expansion of steel can be used as a cover agent deslagging agents.
(3) 50-70mesh ,70-90mesh ,90-120mesh pearlite sand can be as expansive as the beer, pharmaceutical agents and use of filtering low-temperature oxygen tank with insulati
◆ Expanded Perlite specification
Item | Specification | Item | Specification |
Specific gravity | 0.15-2.4g/cm3 | Thermal conductivity | 0.032-0.045 |
Flotage rate% | 98Min | Suface glazed rate% | 95min |
Water absorption% | 20-50 | 1Mpa (Pressure)volume loss% | 38-46 |
Fire resistance | 1280-1360degrees | Application temperature | 1400max |
Cofficient of water permeability | 200mm/hr | water-absorbable | 420-600KGS/M3 |
PH | 6.5-7.5 | Loss in Burning | 4-8 |
Liquid Solubility | <0.1% | Acid solubility | <2% |
Refractive index | 1483-1506 |
Perlite filter specification
Iterms | Model | ||
K(fast) | Z(intermediate speed) | M(low speed) | |
Bulk density (g/cm3) | ＜0.15 | ＜0.2 | ＜0.25 |
Relative Velocity(s/100ml) | ＜30 | 30～60 | 60～80 |
penetration rate (Darcy) | 10～2 | 2～0.5 | 0.5～0.1 |
suspended matter (%) | ≤15 | ≤4 | ≤1 |
150 mesh screen tailings (%) | ≤50 | ≤7 | ≤3 |
Expanded perlite size:
1. Perlite filter aid : 30-50mesh, 50-70mesh, 70-90mesh, 90-120mesh, 120-200mesh 325mesh
2. Expanded Perlite: 60mesh, 100mesh, 120mesh, 150mesh, 0.1-1mm, 0.5-1.5mm1-2mm, 2-4mm3-6mm 4-8mm
3. Horticultural Perlite: 1-2mm, 2-4mm, 1-4mm ,3-5mm.4-8mm
4. Special size is supplied as per customers' demands .
Application:
1. Horticultural Applications
In horticultural applications, perlite is used throughout the world as a componet of soilless growing mixed where it provides aeration and optimum moisture retention for superior plant growth. Other horticultural applications for perlite are as a carrier for fertilizer, herbicides and pesticides and for peletizing seed.
2. Construction applications
Perlite is widely used as a loose fill insulation in masonry construction. Other construction applications include chimney linings, under-floor insulation, gypsum boards, paint texturing, ceiling tiles, and roof insulation boards etc.
3. Industrial Application
Ranging from high performance fillers for plastics to cements for petroleum,water and geothermal wells