Engineered to precise critical limits. Sourced globally by leading EPC contractors and system integrators.
A deep dive into molten salt chemistry, performance parameters, and industrial implementation.
In high-temperature thermal energy storage (TES) and heat transfer loops, defining molten salt conditions is a critical engineering task. Eutectic mixtures of binary salts, traditionally containing 60% Sodium Nitrate (NaNO₃) and 40% Potassium Nitrate (KNO₃), are widely utilized because they exhibit a distinct melting point (eutectic temperature of approximately 220°C). By adjusting the purity and chemical ratio, systems can operate effectively in a liquid state between 260°C and 560°C.
Maintaining optimal conditions requires mitigating high-temperature thermal decomposition, which yields unwanted nitrite formations and corrosive oxygen byproducts. Additionally, control of impurities like chlorides, sulfates, and moisture is critical. High chloride concentrations damage protective oxide coatings on stainless steel and alloy piping, accelerating localized pitting and stress corrosion cracking.
Industrial Grade versus Solar Grade is distinguished by the concentration of trace contaminants. Standard agricultural components introduce calcium, chlorides, and insoluble minerals that form mineral crusts and restrict flow inside heat exchangers. Vojin New Materials regulates total chlorides below 100 ppm, extending the operational lifespan of receiver pipes to 25+ years.
Figure 1: Thermal analysis and processing of high-temperature eutectic nitrate mixtures under clean-room conditions.
Explore our specialized range of inorganic chemicals, agricultural formulations, and by-products.
Ultra-pure potassium, sodium, and calcium nitrates tailored for critical thermal processes and industrial glass manufacturing.
Fully water-soluble macro and micronutrient complexes optimized for modern drip irrigation and foliar agricultural setups.
Industrial secondary components formulated to support diverse applications, including water treatment and concrete set retardation.
Developing optimal salt parameters to meet the high thermal requirements of complex global industries.
Enabling consistent power delivery in Concentrated Solar Power (CSP) plants through molten nitrate thermal energy storage systems.
VIEW MORE →Supplying high-purity potassium nitrate used for chemical strengthening and ion-exchange tempering of touchscreens and protective covers.
VIEW MORE →Delivering high-temperature process heat for industrial steam networks, petrochemical heating, and efficient coal conversion systems.
VIEW MORE →Providing essential water-soluble nitrates that supply critical nitrogen and potassium during key vegetative growth phases.
VIEW MORE →Shanxi Vojin New Materials Co., Ltd. operates a highly automated processing facility in Shanxi, China, which enables consistent supply for global projects. Modern industrial applications require reliable raw material quality, process consistency, and delivery performance.
By integrating advanced automation and purification technologies, we achieve a capacity of 600,000 tons annually. Our systems manage and log process parameters from crystallization through to the final packaging line.
We use advanced recrystallization systems to limit critical impurities like chloride, magnesium, and sodium down to parts-per-million levels. This degree of purity helps prevent premature equipment degradation in large thermal plants, satisfying international procurement guidelines.
Driven since 2000, we have been committed to the entrepreneurial spirit and passion for innovation. Our team takes pride in delivering dependable products and services with a quality distinction in thermal energy storage & water-soluble fertilizer industries globally.
Learn More About VojinOur years of manufacturing experience and refined products provide you with better performance
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Integrated experience on exporting operation. Always assure your customers good quality.
Annual output of 600,000 Tons of molten salts and related chemical products.
Experienced technical support and service teams. Fast response to customer specifications.
Multiple items for selection such as KNO3 and NaNO3 to meet various chemical needs.
Advancing molten salt technology for higher temperatures, reduced emissions, and global regulatory alignment.
To improve the thermodynamic efficiency of Concentrated Solar Power (CSP) systems, research is focusing on formulations that operate at higher temperatures. Current binary nitrate systems are stable up to ~560°C.
We are studying ternary formulations, including calcium nitrate, potassium nitrate, and sodium nitrate mixtures, which lower the freezing point below 140°C while maintaining thermal stability.
For next-generation solar and nuclear systems operating above 700°C, we are researching high-temperature chloride (NaCl-KCl-MgCl₂) and carbonate systems. These chemistries present higher thermal density but require robust alloy materials to manage corrosion.
Global distribution of bulk chemicals requires strict adherence to international safety and customs regulations. Shanxi Vojin maintains compliance with REACH, EPA, and local chemical agency standards.
We offer comprehensive safety data sheet (SDS) documentation, and our packaging is optimized for secure transoceanic shipment. We work with international logistics providers to coordinate containerized and break-bulk shipping, providing reliable scheduling from factory floor to job site.
We also offer on-site technical support during initial salt melting operations to assist with system charging and prevent freeze-up challenges.
Detailed answers addressing critical engineering questions on molten salt storage systems.
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For many years, we have successfully responded to the requirements of reputed customers in the market.
Supporting high-temperature applications, industrial synthesis, and agricultural nutrition.
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