Explore our high-performance inorganic chemical compounds engineered for absolute purity and stability.
In the global transition toward decarbonization, high-density energy storage has transitioned from an auxiliary grid service to the core foundation of grid stability. As Concentrated Solar Power (CSP) systems and long-duration thermal energy storage (TES) plants expand across global markets, the demand for highly reliable heat transfer fluids (HTFs) has surged. Non-organic molten salts—principally eutectic mixtures of potassium nitrate (KNO₃) and sodium nitrate (NaNO₃)—have established themselves as the industry benchmark.
Shanxi Vojin New Materials Co., Ltd. (also operating as Bingsheng Chemical) stands at the forefront of this chemical revolution, maintaining a 600,000-ton annual output. Since 2010, our facility has delivered bespoke compound formulations, meeting the thermal mechanical design parameters of international Engineering, Procurement, and Construction (EPC) firms, power developers, and industrial manufacturing plants. Our focus remains on suppressing impurity indexes, such as chlorides and moisture levels, to dramatically curb container corrosion and extend plant lifetimes to 30+ years.
Information Gain Insight: Our proprietary synthesis processes limit total chloride concentrations to under 50 ppm, minimizing stress corrosion cracking in high-nickel alloy piping, a leading cause of premature failure in CSP storage tanks.
Industrial-grade solar salts are binary mixtures typically containing 60 wt% Sodium Nitrate ($NaNO_3$) and 40 wt% Potassium Nitrate ($KNO_3$). Selecting this ratio leverages the eutectic point to minimize the melting phase boundary down to approximately 220°C (428°F) while securing thermal degradation limits above 565°C (1049°F).
Understanding the thermophysical properties of this liquid medium is critical for structural calculation profiles:
To expand these physical envelopes, Bingsheng Chemical's research divisions formulate ternary salts utilizing calcium nitrate ($Ca(NO_3)_2$) and lithium-based compounds. This reduces the solidification point below 150°C, lowering the energy load required for trace-heating systems during downtime.
Operating from our 1,000-acre manufacturing base, Shanxi Vojin New Materials has streamlined raw material sourcing, purification, crystallization, and distribution channels. We produce high-purity synthetic potassium nitrate and sodium nitrate to eliminate organic impurities and heavy metal residues, which cause gas release and system pressurization at high temperatures.
Our packaging processes use dynamic, humidity-controlled, vacuum-sealed industrial bags that resist atmospheric moisture absorption. This step is critical to prevent caking during sea transport, ensuring the product arrives free-flowing and ready for direct dry-filling into melting units.
Engineered chemicals tailored for high-temperature energy systems and advanced agricultural applications.
High-purity sodium, potassium, calcium and lithium compounds optimized for thermal storage and industrial processes.
Water-soluble agricultural nutrition products with balanced trace elements for modern crop optimization.
Refined industrial chemicals and carbon salts utilized in metallurgy, purification, and glass treatment.
Connecting molten salt physics to diverse thermal, manufacturing, and agricultural applications.
Providing high sensible and latent heat transfer fluids for commercial CSP plants, shifting peak loads safely.
Explore ApplicationUltra-purity chemical salts used for chemical strengthening baths of optical protective panels and mobile cover glass.
Explore ApplicationReplacing coal-fired boilers with eco-friendly molten salt systems that supply high-temperature process steam.
Explore ApplicationSupplying water-soluble nitrates that supply clean nitrogen and potassium nutrition without heavy metal residues.
Explore ApplicationPurchasing industrial molten salts for a 100MW+ CSP installation involves evaluating long-term operational costs alongside the initial purchase price. Project managers, EPC contractors, and plant engineers face key performance variables when selecting a manufacturing partner:
To enhance the thermal efficiency of steam turbines in power generation, CSP systems aim to operate at higher temperatures, targeting 600°C to 700°C. Standard solar salts begin to decompose into nitrites and nitrogen oxides ($NO_x$) when temperatures exceed 565°C.
Bingsheng Chemical is addressing this limit through several technical pathways:
Operating a global chemical supply chain requires strict compliance with regional safety and quality frameworks. Shanxi Vojin New Materials ensures smooth international shipping by aligning with recognized certification standards:
Our infrastructure and dedicated service teams support reliable, large-scale supply chains.
Integrated global logistics experience ensuring consistent delivery quality across international ports.
An annual output capacity of 600,000 tons of high-grade molten salts, securing supply for gigawatt-scale projects.
Technical teams and engineers provide rapid support, from salt melting to chemical balance optimization.
Diverse chemical range including KNO₃, NaNO₃, and customized formulations to match unique process requirements.
Stay updated with the latest technological and chemical advances in the energy storage industry.
Operating thermal systems at higher temperatures improves energy conversion efficiency while reducing storage volume requirements...
Concentrated Solar Power plants convert solar radiation into stable, dispatchable electricity using large-scale liquid thermal storage systems...
Molten salt thermal energy storage has emerged as a reliable solution for grid integration, balancing intermittent renewable sources...
Direct answers to technical queries from engineering, procurement, and operations teams.
To minimize chemical breakdown and structural corrosion, CSP systems typically require purities of 99.0% or higher. Crucially, impurities like chlorides and sulfates must be kept below 50–100 ppm to protect stainless steel piping from pitting and stress-corrosion cracking at temperatures above 500°C.
We limit corrosive impurities ($Cl^-$ and $SO_4^{2-}$) through synthetic raw material control and advanced purification. By supplying high-purity salts, we prevent the formation of aggressive compounds that degrade alloy oxide layers at high temperatures.
Solar salt solidifies around 220°C. If the salt freezes inside the piping, it can expand and cause mechanical damage. CSP plants use electrical trace heating and auxiliary gas heaters to maintain the system temperature above 240°C during downtime. Additionally, we formulate low-melting-point ternary blends to reduce the energy required for freeze protection.
We package our products in vacuum-sealed moisture-barrier jumbo bags and use automated palletization to protect the salts from environmental humidity. This keeps the material dry and free-flowing, preventing clumping during ocean transit and enabling easy handling at the project site.
We work with international energy leaders, EPC contractors, and agricultural distributors.
Explore our high-performance inorganic chemical compounds engineered for absolute purity and stability.
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