High-Purity Silica from Rice Husk

Groundbreaking Technology with Versatile Applications Across a Myriad of Industries.

What is Rice Husk Silica?

Rice husk silica (RHS) is a remarkable material derived from the outer shell of rice grains. Known for its high silica content, rice husk silica offers numerous benefits across various industries. As the demand for sustainable and eco-friendly materials grows, RHS is gaining popularity due to its environmental advantages and versatile applications. Rice husk silica is extracted from rice husks, the protective coverings of rice grains that are often considered agricultural waste. Through a controlled combustion process, the organic components of rice husks are burned off, leaving behind a high-purity silica residue. This silica can then be further processed for different uses.

Benefits

High Purity

for rice husk silica with
99.99% SiO2 content

Enviromently
– Friendly

products obtained from
non-polluting process

Stable &
Adjustable

characteristics for
specific applications

Competitive
Price Point

compared to other
products in the market

CSR
& PR

for adopting eco
products into production

Flexible
Specifications

customized based on
customers' needs

Amorphous
Structure

completely void of any
crystalline content

High
Purity

for rice husk silica with 99.99% SiO2 content

Enviromently
– Friendly

products obtained from non-polluting process

Stable &
Adjustable

characteristics for specific applications

Competitive
Price Point

compared to other products in the market

CSR
& PR

for adopting eco products into production

Flexible
Specifications

customized based on customers' needs

Amorphous
Structure

completely void of any crystalline content

technology

Rice husk silica extraction technology is an industrial-scale innovation that has been successfully scaled up and tested in large-scale production. This technology has been researched and specially designed to optimize rice husk utilization, producing amorphous silica with high purity and stable physicochemical properties for various user industries. It is also engineered to minimize energy consumption, thereby reducing energy costs, while ensuring an environmentally-friendly production process. Most importantly, this technology can yield substantial business profits and a rapid payback period.

applications

Rice husk silica (Rice Husk Silica), derived from the ash produced by burning rice husks, has several valuable applications across various industries due to its high silica content and unique properties. Here are some key applications:
Construction Materials
  • • Cement & Concrete Additive: Rice Husk Silica can be used as a pozzolanic material to improve the strength and durability of concrete and cement.
  • • Insulation Materials: Due to its low thermal conductivity, Rice Husk Silica is used in producing insulation materials for buildings and industrial equipment.
Rubber & Plastics
  • • Filler Material: Rice Husk Silica serves as a reinforcing filler in the rubber and plastics industry, enhancing the mechanical properties of the final products.
Agriculture
  • • Soil Amendment: Rice Husk Silica can improve soil structure and fertility, providing a slow-release source of silica that benefits plant growth.
Environmental Applications
  • • Adsorbent: Rice Husk Silica is effective in removing heavy metals and dyes from wastewater due to its high surface area and porosity.
  • • Catalyst Support: Its porous structure makes Rice Husk Silica suitable as a support material for catalysts in various chemical reactions.
Ceramics & Glass
  • •Glass Production: The high silica content makes Rice Husk Silica an excellent raw material for producing glass.
  • • Ceramic Products: Rice Husk Silica is used in the manufacture of high-temperature resistant ceramics and other specialized ceramic products.
Pharmaceuticals & Cosmetics
  • • Cement & Concrete Additive: Rice Husk Silica can be used as a pozzolanic material to improve the strength and durability of concrete and cement.
  • • Insulation Materials: Rice Husk Silica can be used as a pozzolanic material to improve the strength and durability of concrete and cement.
Energy Storage
  • • Battery Anodes: Rice Husk Silica is being explored for use in lithium-ion battery anodes due to its high silicon content, which can improve energy storage capacity.
Food Industry
  • • Anticaking Agent: Rice Husk Silica can be used as an anticaking agent in food products, helping to prevent clumping and ensuring free-flowing powders.
These applications demonstrate the versatility and potential of rice husk silica as a sustainable and valuable material across different sectors.

Production Process

Collection
& Cleaning

Rice husks are collected from rice mills and thoroughly cleaned to remove impurities.
Advance
Treatment
The cleaned husks undergo pre-treatment processes, such as acid leaching, to increase silica purity.
Husk
Combustion
The husks are subjected to controlled combustion at high temperatures, resulting in the formation of rice husk ash (RHA).
Silica
Extraction
The RHA is then processed to extract silica, which can be further refined to achieve the desired purity levels.