Dolomite Powder Manufacturer and Supplier in India

Dolomite Exporters and Lumps Supplier Across India

Dolomite is a naturally occurring calcium magnesium carbonate mineral with the chemical formula CaMg(CO3)2. It is a double carbonate compound formed through the diagenetic alteration of limestone in sedimentary environments over millions of years. Dolomite is recognized for its high natural whiteness, fine dispersibility, moderate hardness of 3.5 to 4 on the Mohs scale and chemical stability under normal industrial conditions. It is harder and denser than calcite, which makes it more resistant to acid attack and better suited to demanding industrial applications.

HTMC Group is among the most trusted Dolomite Powder Manufacturers in India, producing and supplying high-purity dolomite across domestic and international markets. As reliable Dolomite Suppliers and recognized Dolomite Exporters, we process every batch through strict quality protocols to deliver consistent whiteness, controlled particle size, and stable chemical composition. Our manufacturing infrastructure and technical expertise enable us to serve the steel, paint, agriculture, ceramics, glass, rubber, construction and personal care sectors with premium-grade dolomite products that perform reliably across all applications.

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Dolomite Powder Manufacturing Process Overview

The dolomite powder manufacturing process at HTMC Group follows a systematic, multi-step process designed to deliver uniform quality and high purity in every batch.

1. Mining and Raw Material Extraction

High-grade dolomite ore is identified through geological surveys and site-level sampling. Once a suitable deposit is confirmed, open-pit mining is carried out using heavy machinery to extract raw dolomite rock from the earth. Only ore with the appropriate CaO and MgO ratios is selected to ensure consistent chemical composition in the final product.

2. Primary Crushing

The extracted dolomite rock is transported to the processing facility, where it undergoes primary crushing. Large chunks of ore are reduced to smaller, manageable pieces using jaw crushers and cone crushers. This initial size reduction prepares the material for the next stage of processing and ensures uniform feed into the grinding systems.

3. Grinding and Milling

The crushed dolomite is fed into ball mills or roller mills where it is ground to the required particle size and mesh specification. This is one of the most critical stages of the dolomite powder manufacturing process, as particle size directly affects the performance of the final product in its intended application. Multiple mesh options are available, ranging from coarse to micronized grades.

4. Classification and Separation

After grinding, the dolomite powder is classified using air classifiers or vibrating screens to separate material that has reached the required fineness from oversized particles. Oversized material is returned to the mill for further grinding. This closed-loop classification ensures consistent particle size distribution across every batch.

5. Purification and Quality Improvement

At this stage, various purification techniques including washing and flotation may be applied to reduce impurity levels and improve whiteness. Iron content and other colouring impurities are minimized to achieve the brightness specifications required for paint, rubber, and personal care applications. White Dolomite Powder of high brightness is produced at this stage for premium-grade applications.

6. Drying

The processed dolomite powder is dried using rotary dryers or flash drying systems to reduce moisture content to the level required for the specific grade. Drying conditions are carefully controlled to preserve the natural chemical and physical properties of the mineral.

7. Quality Control and Packaging

Every batch of finished dolomite powder undergoes rigorous quality testing, including whiteness measurement, particle size distribution analysis, moisture content, pH, CaO and MgO content, and chemical purity before dispatch. As experienced Dolomite Powder Suppliers, we pack the final product in moisture-resistant bags under clean and dry conditions to ensure product integrity throughout storage and transportation.

Applications and Uses of Dolomite Powder

Steel and Iron Industry

Dolomite powder is used as a fluxing agent and refractory lining material in steel melting shops and blast furnaces. It helps remove impurities from molten metal and improves the quality of steel. It is also used as a sintering agent in iron ore pelletization, where it contributes to flux chemistry and supports the production of high-quality iron ore pellets. /p>

Paints and Coatings

As an extender pigment, dolomite powder improves the opacity, brightness, and film strength of paints and surface coatings. Micronized grades dissolve readily in water-based emulsions, distempers, and primers. Since dolomite is rich in lime and naturally high in whiteness, it is also widely used in the manufacturing of wall putty. HTMC Group is a recognized supplier to the paint industry and provides dolomite meeting the specific fineness and whiteness requirements of coating manufacturers.

Agriculture

Dolomite Powder for Agriculture is one of the most widely used soil amendment products in farming. It neutralizes soil acidity, raises pH levels, and provides both calcium and magnesium directly to the soil. These two nutrients are essential for chlorophyll production, root development, and overall crop health. Dolomite powder for plants is particularly effective for crops with higher magnesium requirements such as tomatoes, peppers, citrus fruits, and leafy vegetables. It also improves water infiltration in compacted soils and supports beneficial microbial activity in the root zone.

RCeramics and Glass

Dolomite is a key raw material in the production of ceramic tiles, sanitaryware, and electrical porcelain. It contributes to the thermal stability of ceramic bodies during firing and improves the mechanical strength of the finished product. In the glass industry, dolomite is used to improve the durability, chemical resistance, and light transmission properties of sheet glass and container glass.

Rubber and Plastics

As a functional filler in rubber compounds and plastic formulations, dolomite powder improves hardness, dimensional stability, and processing characteristics. It is used in cable insulation, conveyor belts, PVC sheets, and a wide range of industrial rubber and plastic goods. It helps maintain the shape of rubber products during use and improves the surface finish of the final product.

Construction

Dolomite is widely used in the construction industry as an aggregate in concrete and asphalt, as a filler in cement, and as a road base material. Its higher hardness and density compared to limestone make it a preferred choice for construction applications that require mechanical strength and durability. It is also used in wall putty formulations and construction mortars.

Personal Care and Skin

Cosmetic and personal care grade dolomite powder for skin is used in face masks, body scrubs, and mineral-based beauty formulations. Its mild abrasive texture provides gentle exfoliation, while its mineral content supports skin conditioning. It is valued in natural and mineral cosmetics for its soft texture, white colour, and non-toxic profile. Top Dolomite Powder Manufacturers supplying to the personal care sector process dolomite to pharmaceutical and cosmetic purity standards specifically for this use.

Animal Feed

Food-grade dolomite powder acts as a mineral supplement in animal feed formulations for cattle, poultry, sheep, and goats. It provides bioavailable calcium and magnesium that support bone development, egg production, and general livestock health. It is also used to absorb excess oil in animal feed and remove impurities, making it a cost-effective mineral additive in the feed industry.

Detergent and Soap

Dolomite powder is used as a filler and mild abrasive in detergent powder formulations and bar soap manufacturing. It improves the texture and cleaning performance of detergent products and adds bulk to soap formulations without affecting their cleansing properties.

Technical Specifications of Dolomite Powder

Parameter	Typical Range / Value	Description
Appearance	White to off-white powder	Indicates purity and natural whiteness
Chemical Formula	CaMg(CO₃)₂	Double carbonate of calcium and magnesium
CaO Content	29 to 32%	Core chemical composition parameter
MgO Content	19 to 22%	Determines suitability for specific applications
SiO₂ Content	Less than 1.5%	Controls chemical purity
Fe₂O₃ Content	Less than 0.2%	Affects whiteness and colour
Loss on Ignition	45 to 48%	Measures carbonate content
Whiteness / Brightness	88 to 95%	Key parameter for paint and rubber applications
Moisture Content	Less than 0.5%	Affects flowability and shelf life
pH (10% aqueous suspension)	8.5 to 9.5	Relevant for agricultural and chemical applications
Hardness	3.5 to 4 Mohs	Physical strength parameter
Specific Gravity	2.85 to 2.95 g/cc	Physical handling parameter
Particle Size (D50)	2 to 45 microns (grade-dependent)	Determines application suitability
Bulk Density	0.8 to 1.1 g/cm³	Packaging and logistics consideration

Product Packing Details

HTMC Group provides dolomite powder in safe, durable packaging to maintain product quality throughout storage and transit.

Package Sizes: 25 kg / 50 kg bags
Package Type: Multi-layer paper bags with inner polyethylene liner
Bulk Supply: Available in jumbo bags and custom packaging on request
All packaging is moisture-resistant and clearly labeled with product grade, batch number, and manufacturing details.

Safe Handling and Storage

To maintain the purity and performance of dolomite powder, store it in a clean, dry, and well-ventilated area away from direct sunlight, heat, and moisture. Ensure packaging is securely sealed after each use to prevent contamination and moisture absorption. When handling dolomite powder, wear appropriate personal protective equipment including a dust mask, gloves, and safety goggles to minimize exposure to airborne particles. For maximum shelf life, keep the product at temperatures below 30 degrees Celsius under dry storage conditions. Avoid prolonged contact with strong acids during storage and processing to preserve product quality and chemical composition.

Other Industries We Cater

Cables and Wires

Textile Industry

Pharmaceuticals

Animal Feed

Fiberglass

Paper and Pulp

Rubber Industry

Agriculture

Why Choose HTMC Group as Your Dolomite Supplier

HTMC Group has established itself as one of the leading Top Dolomite Distributors and Dolomite Powder Manufacturer in India by consistently delivering products that meet the quality, purity, and performance specifications required by industries across the country and globally.

As a trusted Dolomite Lumps Supplier and powder manufacturer, we maintain strict process controls at every stage from raw material selection and mining to milling, quality testing, and final packaging. Our manufacturing facilities operate under ISO-certified quality management systems, and every batch is tested against defined specifications before dispatch. We supply multiple grades of dolomite tailored to the specific requirements of steel, paint, agriculture, ceramics, glass, rubber, construction, personal care, and animal feed applications.

As recognized Dolomite Exporters, HTMC Group supplies dolomite powder and lumps to buyers across Asia, the Middle East, Africa, and Europe. Our logistics infrastructure supports reliable, on-time delivery to both domestic and international customers, with full documentation and compliance support for all export requirements.

Our technical team works closely with customers to identify the right dolomite grade for their application, provide processing guidance, and support new product formulation. Whether you need a standard construction grade in bulk or a micronized high-brightness grade for a premium paint or cosmetic formulation, HTMC Group delivers with consistency and commitment. For an accurate quote on dolomite powder price per kg based on your specific requirements, please contact our sales team directly.

Frequently Asked Questions

The dolomite powder formula is CaMg(CO3)2, which represents a double carbonate of calcium and magnesium. It is a sedimentary mineral formed through the alteration of calcium carbonate deposits by magnesium-rich pore water over geological time.

Dolomite powder uses span a wide range of industries. It is used as a fluxing agent and refractory material in steel manufacturing, as an extender pigment in paints and wall putty, as a soil conditioner and mineral fertilizer in agriculture, as a raw material in ceramics and glass, as a filler in rubber and plastics, as an aggregate in construction, and as a cosmetic-grade mineral in personal care formulations. It is also used in animal feed as a calcium and magnesium supplement.

Dolomite powder for plants provides two essential nutrients, calcium and magnesium, in a single application. It neutralizes soil acidity by raising pH levels, which improves nutrient availability and beneficial microbial activity in the soil. It supports chlorophyll production, strengthens root systems, and improves crop yields, particularly in magnesium-deficient soils. It is safe, natural, and effective for both conventional and organic farming systems.

Yes. HTMC Group is a trusted Dolomite Powder Manufacturer in India with a strong export network across Asia, the Middle East, Africa, and Europe. We offer complete export documentation, regulatory compliance support, and dependable logistics to ensure seamless international deliveries. Our export services include custom packaging, bulk supply options, and dedicated assistance with technical and shipping requirements for smooth cross-border transactions.

HTMC Group supplies White Dolomite Powder and multiple other grades, including industrial grade for steel and construction, dolomite powder for agriculture and soil conditioning, paint and coating grade with high whiteness for emulsions and wall putty, ceramic grade for tiles and sanitaryware, rubber and plastics grade, and cosmetic grade for personal care formulations. Powder mesh sizes available range from 100 to 600 mesh depending on application requirements. Please contact our team for grade-specific technical data sheets and pricing.

Dolomite Powder Manufacturer and Supplier in India

Dolomite Exporters and Lumps Supplier Across India