Transforming Agricultural Waste into High-Purity Silica and Carbon Materials

​The global silica market exceeds US$70 billion annually and grows over 7% each year, driven by demand from the semiconductor, tire, and green construction sectors. Despite this growth, conventional silica production relies on mined quartz, harsh chemicals, and energy-intensive processes, creating high costs and environmental burdens. There is an urgent need for sustainable, low-carbon alternatives that deliver industrial performance without a “green premium.” This patented technology converts agricultural residues such as rice husks into two high-value products: ultra-pure amorphous silica and biomass-derived carbon through a single, chemical-free process. It eliminates chemical waste, reduces CO₂ emissions, and can be implemented locally, turning waste into valuable materials. The technology provider is seeking rice producers, companies, and institutions globally interested in sustainable silica and carbon, as well as R&D organizations and universities advancing green materials and biomass utilization. 

​This technology employs a proprietary single-firing process to directly convert agricultural residues into two high-value products: ultra-pure silica (≈99.7%) and carbon. The process requires no harsh chemicals, making it safe, sustainable, and simple to operate. Compared with conventional alternatives, this process significantly reduces CO₂ emissions and maintains an exceptionally low environmental footprint. Designed for decentralized use at the source of agricultural waste, the system is well suited for small- to medium-scale facilities and can be seamlessly integrated into existing industrial processes. However, the performance of the carbon product has not yet been proven in actual operational environments and has only been demonstrated at the pilot level.