Buy good quality Unexpanded Perlite Ore in Size 1.20 to 2.80 MM for various applications in Insulation, Construction, Agriculture, at Wedge India. The particle size of 1.20 to 2.80 mm makes it particularly useful in industries where control over filtration, flow, and expansion characteristics is necessary.
 
Unexpanded perlite ore is a naturally occurring volcanic glass with high water content. When heated rapidly, it expands to many times its original volume, a process called “popcorn effect,” resulting in expanded perlite. Here are some key points about unexpanded perlite ore:
 
1. Composition: Unexpanded perlite is composed mainly of silica (SiO2), along with smaller amounts of aluminum oxide (Al2O3), sodium oxide (Na2O), potassium oxide (K2O), and other minerals.
2. Structure: It has a characteristic concentric or onion-like structure. The presence of water trapped within the glassy texture is crucial for its expansion upon heating.
3. Uses: While the unexpanded ore itself has limited uses, its expanded form is widely used for various applications, including:
• Horticulture: As a soil amendment to improve aeration and drainage.
• Construction: As lightweight aggregate in plaster, concrete, and insulation materials.
• Industrial Applications: For filtration, as an abrasive in polishing compounds, and in creating lightweight fillers for paints and plastics.
4. Expansion Process: The expansion process involves heating the ore to temperatures between 850°C and 900°C, which causes the trapped water to vaporize and expand, transforming the ore into a lightweight, white, porous material.
5. Environmental Impact: The mining and expansion of perlite are considered to have a relatively low environmental impact compared to other mining processes. It is also chemically inert and free from harmful contaminants, making it safe for various uses.
 
Unexpanded perlite ore in the size range of 1.20 to 2.80 mm is often used for specific industrial applications where particle size is crucial. Here are some details about this particular size range:
 
1. Applications:
• Filtration: The specified size range is suitable for use in filtration systems, where consistent particle size can help in removing impurities from liquids and gases. This is especially important in food processing, pharmaceuticals, and water treatment.
• Horticulture: While more commonly used in its expanded form, unexpanded perlite of this size can be mixed with soil to improve aeration and drainage before expansion, especially in custom soil blends.
• Foundries and Metallurgy: Unexpanded perlite can be used as a flux in metal casting processes to help remove impurities from molten metals.
 
2. Advantages:
• Versatility: The specific particle size range makes it versatile for use in applications requiring precise particle distribution.
• Expansion Potential: When heated, this size of perlite will expand to several times its original volume, making it suitable for producing lightweight aggregates.
 
3. Characteristics:
• Density: Unexpanded perlite is denser than its expanded form and has a higher bulk density, which can be advantageous in certain applications.
• Stability: It is chemically stable and inert, meaning it doesn’t react with most chemicals, which is beneficial in industrial applications.
4. Handling and Processing:
• Storage: Should be kept in a dry place to prevent moisture absorption, which can affect its expansion properties.
• Processing: Requires heating in a furnace to achieve expansion, typically reaching temperatures of around 850°C to 900°C.
 
Available Sizes:
1.25 to 2.85 MM UNEXPANDED PERLITE ORE FOUNDRY USE
PERLITE ORE  UNEXPANDED  SIZE 1.20-2.80 MM 
PERLITE ORE GRAIN SIZE : 0.074 mm - 0.60 mm
PERLITE ORE 0.10-0.60 MM
 
If you have specific questions or need more detailed information about unexpanded perlite ore or its applications, email us to get the Technical Specifications.