Dolomita - Jundu

Materials

Dolomite

Produced at the unit of Bom Sucesso (SP), a dolomita é um mineral composto por carbonato duplo de cálcio e magnésio (CaMg(CO3)2), encontrado em rochas sedimentares conhecidas como dolomitos.

At Jundu, dolomite is extracted and processed to a high degree of purity, primarily for applications in the glass industry.

Industrial Applications

Dolomite is widely used as a source of calcium (CaO) and magnesium (MgO) oxides, essential elements in the formulation of various types of glass. In the glass industry, it acts as a stabilizer and flux, contributing to:

Reduction of the melting point of glass

Improved chemical and mechanical resistance.

Increased durability and thermal stability.

Ideal for the Glass Industry

These properties make dolomite ideal for the production of flat glass, glass packaging, fiberglass, and technical glass, where the presence of magnesium is essential to prevent unwanted crystallization and improve the workability of the material.

Technical Properties

Jundu resin-bonded sand is widely used in the foundry industry, especially in the following segments:

Typical chemical composition

CaO: ~30,4%
MgO: ~21,9%
CO₂: ~47,7%

Controlled granulometry

Adjusted according to the industrial application.

Markets

Mortars and Grouts

Quartz sands for adhesive mortars and grouts, of high purity, that contribute to better workability, adhesion, resistance and efficiency in applications.

Mortars and Grouts

Quartz sands for adhesive mortars and grouts, of high purity, that contribute to better workability, adhesion, resistance and efficiency in applications.

Thermoelectric Boiler

Fluidized bed thermoelectric boilers use sand as an essential medium to ensure stable and efficient combustion, guaranteeing reliability and reduced operating costs.

Thermoelectric Boiler

Fluidized bed thermoelectric boilers use sand as an essential medium to ensure stable and efficient combustion, guaranteeing reliability and reduced operating costs.

Silicon Carbide

High purity in the production of green, black, and electronic-grade silicon carbide, ensuring thermal consistency and stability for industrial and technological applications.

Silicon Carbide

High purity in the production of green, black, and electronic-grade silicon carbide, ensuring thermal consistency and stability for industrial and technological applications.

Ceramic

We supply high-purity quartz sands and ground silica for applications in ceramic bodies, glazes, and frits, guaranteeing impeccable technical performance and aesthetics.

Ceramic

We supply high-purity quartz sands and ground silica for applications in ceramic bodies, glazes, and frits, guaranteeing impeccable technical performance and aesthetics.

Concrete

High-performance concrete, with high strength, durability and low porosity, used in infrastructure projects, industrial floors and structures that require high technical performance.

Concrete

High-performance concrete, with high strength, durability and low porosity, used in infrastructure projects, industrial floors and structures that require high technical performance.

Sports

Atuamos no mercado esportivo desenvolvendo soluções minerais específicas para beach sports, esportes equestres, golfe, campos esportivos e sistemas de grama sintética.

Sports

Atuamos no mercado esportivo desenvolvendo soluções minerais específicas para beach sports, esportes equestres, golfe, campos esportivos e sistemas de grama sintética.

Fiberglass

Lightweight and strong material, made of thin silica-based glass filaments, widely used as reinforcement in composites due to its thermal, electrical, and structural performance.

Fiberglass

Lightweight and strong material, made of thin silica-based glass filaments, widely used as reinforcement in composites due to its thermal, electrical, and structural performance.

Foundry

Jundu is a leading supplier of raw materials for foundries, and was the first Brazilian company to develop technology for the Shell Molding process.

Foundry

Jundu is a leading supplier of raw materials for foundries, and was the first Brazilian company to develop technology for the Shell Molding process.

Filtering Media

Filtration is fundamental in water treatment, and sand plays a key role as an essential filtering medium for retaining impurities and improving water quality.

Filtering Media

Filtration is fundamental in water treatment, and sand plays a key role as an essential filtering medium for retaining impurities and improving water quality.

Oil and Natural Gas

Solutions in Frac Sands and Gravel Pack (natural or resin-coated), which act as propants in fracturing and stimulation operations of oil and natural gas wells.

Oil and Natural Gas

Solutions in Frac Sands and Gravel Pack (natural or resin-coated), which act as propants in fracturing and stimulation operations of oil and natural gas wells.

Silicate

Soap, detergent, catalysts, textiles, paper and pulp are some of the chemical industry products that use Sodium Silicate in their formulations, ensuring high purity and performance.

Silicate

Soap, detergent, catalysts, textiles, paper and pulp are some of the chemical industry products that use Sodium Silicate in their formulations, ensuring high purity and performance.

Quartz Surfaces

Quartz surfaces are slabs made from ground quartz combined with resins, recognized for their durability, low porosity, strength, and aesthetic versatility in architectural applications.

Quartz Surfaces

Quartz surfaces are slabs made from ground quartz combined with resins, recognized for their durability, low porosity, strength, and aesthetic versatility in architectural applications.

Glass

Glass is essential in everyday life, and at Jundu, mineral solutions such as quartz sand, dolomite, and limestone are developed with science and innovation to serve the entire glass industry chain.

Glass

Glass is essential in everyday life, and at Jundu, mineral solutions such as quartz sand, dolomite, and limestone are developed with science and innovation to serve the entire glass industry chain.

Materials

Quartz Sand

Composed of high-purity quartz, with high thermal resistance, chemical stability and hardness, for high-performance applications.

Quartz Sand

Composed of high-purity quartz, with high thermal resistance, chemical stability and hardness, for high-performance applications.

Resinated Sands

Dry quartz sands coated with synthetic resins, mainly used in the foundry and oil and gas industries.

Resinated Sands

Dry quartz sands coated with synthetic resins, mainly used in the foundry and oil and gas industries.

Ground Silica

Ground silica is derived from quartz, with high purity and controlled particle size, and is used in industries such as ceramics and fiberglass.

Ground Silica

Ground silica is derived from quartz, with high purity and controlled particle size, and is used in industries such as ceramics and fiberglass.

Limestone

Limestone is a rock rich in calcium carbonate (CaCO₃), with high purity and controlled particle size, used especially in the glass industry.

Limestone

Limestone is a rock rich in calcium carbonate (CaCO₃), with high purity and controlled particle size, used especially in the glass industry.

Dolomite

Dolomite is a double carbonate mineral of calcium and magnesium, processed to high purity and used primarily in the glass industry.

Dolomite

Dolomite is a double carbonate mineral of calcium and magnesium, processed to high purity and used primarily in the glass industry.