Glass manufacturing with high-purity mineral grains

Category 02B: High-Purity Grains

High-Purity Industrial Grains & Glass Melting Flux

Precision-screened soda and potash feldspar grains engineered to lower melting temperatures, optimize furnace energy consumption, and ensure high transparency for container and flat glass producers globally.

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Engineered Sieve Distributions

Our Industrial Grain Specifications

Screened and dust-extracted to ensure uniform melting kinetics without air entrainment in molten glass batches.

Macro photograph of high-purity feldspar mineral grains and crystals

Feldspar Grains

Custom Sieve Sized Ceramic & Glass Flux

High-purity potassium and sodium aluminosilicate grains screened to strict particle size bands. Acts as an indispensable fluxing agent in ceramic bodies and glass batch formulations, preventing thermal stress fractures.

Primary Glass & Ceramic Uses:

Glass Batch MeltsCeramic Vitrified BodiesSanitaryware FluxFrit Formulations

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Pure white sodium feldspar albite crystal mineral grains

Soda Grains (Sodium Feldspar)

High-Efficiency Melting Point Reducer

Processed sodium-rich mineral grains with exceptionally high Na₂O content. Significantly lowers glass melt liquidus temperatures, dramatically saving furnace fuel consumption while improving viscosity and melt clarity.

Primary Glass & Ceramic Uses:

Container Glass (Bottles & Jars)Flat Sheet GlassCeramic Enamels & Glazes

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High-grade orthoclase potash feldspar granular mineral specimens

Potash Feldspar Grains

Optical Clarity & High-Viscosity Melt Matrix

Specialized potassium feldspar grains engineered specifically for float glass, specialty technical glass, and luxury tableware. Provides higher melt viscosity during shaping, preventing deformities and maximizing optical brilliance.

Primary Glass & Ceramic Uses:

Float & Architectural GlassSpecialty Glassware & StemwareLighting Enclosures

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Performance Advantages

Why Glass Manufacturers Specify Volcera Grains

Energy & Fuel Savings

Our mineral grains lower furnace operating temperatures by up to 80°C, delivering massive energy cost savings in continuous float glass and container glass furnaces.

Superior Optical Clarity

Magnetic separators and optical sorters keep iron oxide (Fe₂O₃) levels below 0.05%, preventing green tinting and guaranteeing pristine transmission clarity.

Tight Sieve Tolerances

Zero ultra-fines dust ensures uniform melting without causing unreacted batch stones or seed bubbles in the molten glass ribbon.

Reliable Bulk Container Shipping for Glass Plants

Shipped in 1.25 MT jumbo bags or loose bulk container liners with moisture-tight seals from Kandla & Mundra ports.

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