Diatomite Calcined 90% Made in Iran
Iranian diatomite, also known as diatomaceous earth (DE), kieselguhr, or fossil flour, is a naturally occurring siliceous sedimentary rock composed of the fossilized skeletons of diatoms. Calcined diatomite is produced by heating raw diatomite to high temperatures, which removes organic matter and increases porosity and brightness. With a silica content of up to 90% and a unique porous structure, it offers high particle retention, low hydraulic resistance, and excellent filtration efficiency. It is widely used in filtration, insulation, fillers, and absorbents.
The Supply Chain Department at Sahi Rasa Company supplies Iranian calcined diatomite for export to Afghanistan, Iraq, the Kurdistan Region, Tajikistan, Uzbekistan, Armenia, Georgia, Turkey, and Syria. Whether for water filtration, beer and wine clarification, insulation, or paint fillers, the department ensures reliable supply, competitive pricing, and comprehensive logistics support.
1. Introduction to the Supply Chain Department at Sahi Rasa Company
The Supply Chain Department at Sahi Rasa Company has established a reputation for supplying high-quality diatomite products to international markets. Diatomite is a unique mineral with properties that are difficult to replicate synthetically: its high porosity, low density, and intricate skeletal structure make it ideal for filtration and insulation. The department's technical team understands these properties and works with clients to select the right grade of calcined diatomite for their specific application.
The department sources diatomite from Iranian deposits known for their high silica content and consistent quality. The raw diatomite is calcined at controlled temperatures to achieve the desired porosity and brightness. The calcined material is then classified into various grades, from fine powders for filtration to coarse granules for insulation. The department's quality control laboratory tests each batch for silica content, porosity, particle size distribution, and filtration performance.
For clients in Afghanistan, the Kurdistan Region, Iraq, Tajikistan, Uzbekistan, Armenia, Georgia, Turkey, and Syria, the Supply Chain Department at Sahi Rasa Company offers a reliable supply chain with flexible delivery options and comprehensive technical support.
2. Product Overview
Diatomite is a siliceous sedimentary rock formed from the accumulation of diatom skeletons over millions of years. Diatoms are microscopic algae that secrete a cell wall made of silica. When they die, their skeletons settle to the bottom of lakes and oceans, forming deposits of diatomite. The unique structure of diatomite—millions of tiny pores per gram—gives it exceptional filtration and absorption properties.
Calcined diatomite is produced by heating raw diatomite to temperatures between 800°C and 1,200°C. This process removes organic matter and water, increases the silica content, and enhances the brightness and porosity of the material. The calcined product is then milled and classified into various grades.
In filtration, calcined diatomite is used as a filter aid in the clarification of beverages (beer, wine, juice), water treatment, swimming pool filters, and industrial process filtration. Its high particle retention and low hydraulic resistance make it ideal for these applications. In insulation, diatomite is used in high-temperature insulation bricks, pipe insulation, and refractory materials. In fillers, it is used in paints, plastics, and rubber to improve matting, rheology, and mechanical properties. In absorbents, it is used to absorb spills and as a carrier for pesticides and fertilizers.
The Supply Chain Department at Sahi Rasa Company offers calcined diatomite in multiple grades, including fine powder, medium powder, and granular forms.
3. Physical Specifications Table
| Parameter | Specification |
|---|---|
| Product Name | Diatomite (Calcined) |
| Synonyms | Diatomaceous Earth, DE, Kieselguhr, Fossil Flour |
| Appearance | White to off-white powder |
| Silica Content (SiO₂) | 85 – 90% |
| Porosity | 80 – 90% |
| Bulk Density | 0.2 – 0.4 g/cm³ |
| Specific Gravity | 2.0 – 2.3 g/cm³ |
| Melting Point | 1,600°C |
| Mesh Sizes | 100, 200, 325, 600 |
| Moisture Content | ≤ 0.5% |
| pH | 6.0 – 8.0 |
| Oil Absorption | 100 – 200 g/100g |
| Packaging | 25 kg bags, 1 MT jumbo bags |
4. Chemical Specifications Table
| Component | Content (%) |
|---|---|
| SiO₂ | 85 – 90 |
| Al₂O₃ | 3 – 6 |
| Fe₂O₃ | 1 – 2 |
| CaO | 0.5 – 1 |
| MgO | 0.5 – 1 |
| Loss on Ignition | 2 – 5% |
5. Industries & Factories Using This Product
Iranian calcined diatomite is used in beverage filtration, water treatment, swimming pool filtration, industrial process filtration, high-temperature insulation, paint and coating fillers, plastic and rubber fillers, and absorbent products.
6. Key Properties & Advantages
High porosity, high silica content, excellent filtration efficiency, low bulk density, thermal stability, chemical inertness, and high absorption capacity.
7. Chemical Formula / Size & Packaging Specifications
Chemical Formula: SiO₂·nH₂O (amorphous). CAS Number: 61790-53-2. Packaging Options: 25 kg bags, 1 MT jumbo bags.
8. Available Grades, Sizes, Qualities & Custom Colors
| Grade | Mesh Size | Application |
|---|---|---|
| Fine | 325 – 600 | Beverage filtration |
| Medium | 200 – 325 | Water treatment |
| Coarse | 100 – 200 | Insulation, absorbents |
Quality Grades: Food Grade, Industrial Grade. Custom Options: Custom sizing and packaging.
9. Sahi Rasa Supply Chain Department Services for International Factories
The department provides monthly supply planning, sourcing, sample dispatch, custom manufacturing, pre-shipment QC, loading, export documentation, international transportation, customs clearance, on-site technical support, and training.
10. Why Choose the Supply Chain Department at Sahi Rasa Company?
High-quality calcined diatomite, consistent performance, competitive pricing, and reliable export services.
11. Ordering & Contact Information
International customers can place orders through the Request for Quotation (RFQ) form located at the bottom of this page. The expert team at the Supply Chain Department at Sahi Rasa Company will respond to all inquiries as soon as possible, providing complete information on pricing, delivery schedules, shipping terms, and export documentation.
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