Industrial grade chemical formulas engineered with high purity specifications to support renewable energy grids, advanced agriculture, and metal processing industries.
As the global energy landscape accelerates its transition toward deep decarbonization, high-temperature thermal storage systems and advanced generation nuclear reactors are demanding thermal media capable of exceeding traditional operating limits. For decades, nitrate-based molten salts (commonly a eutectic mix of 60% NaNO3 and 40% KNO3) served as the benchmark. However, their operating temperature limit of roughly 565°C restricts thermodynamic efficiency.
Enter Molten Salt Chlorides—specifically eutectic combinations containing Magnesium Chloride (MgCl2), Potassium Chloride (KCl), Sodium Chloride (NaCl), and Zinc Chloride (ZnCl2). Chlorides exhibit superior thermal stability, keeping their integrity up to 800°C - 900°C. This elevated temperature envelope enables integration with high-efficiency power cycles such as supercritical CO2 (sCO2) Brayton cycles, promising a paradigm shift in concentrated solar power (CSP) and heavy industrial electrification.
As a leading wholesale molten salt chlorides manufacturer, Shanxi Vojin New Materials Co., Ltd. is positioned at the intersection of chemical engineering excellence and scalability, ensuring that industrial operators secure ultra-pure, low-corrosivity formulations optimized for prolonged lifetime cycles.
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. Headquartered in the chemical industrial cluster of Shanxi, our facility covers approximately 1,000 acres, backed by rich local mineral resources and strong process technology.
Through robust quality assurance protocols and cutting-edge purification technology, we mitigate the key operational risks of industrial salts, such as high-temperature corrosion and moisture absorption, establishing ourselves as a trusted strategic partner for EPC projects and chemical supply chains worldwide.
Explore Technical CooperationOur infrastructure includes advanced catalytic dehydration lines, precise dry mixing towers, and vacuum hermetic packaging units that guarantee product purity from raw sourcing to reactor loading.
Understanding the thermophysical properties of various chloride systems is critical to selecting the appropriate heat transfer fluid (HTF) for industrial thermal networks.
The formulation of chloride salts focuses heavily on identifying eutectic points—the specific mixing ratio where the system has the lowest possible melting temperature. This is vital to prevent solidification within piping systems during plant shutdowns or low-load cycles while retaining exceptional thermal properties at maximum load.
| Chloride Eutectic Composition | Mixing Ratio (wt%) | Melting Point (°C) | Thermal Limit (°C) | Primary Industrial Use Case |
|---|---|---|---|---|
| NaCl-KCl-MgCl2 | 30 / 20 / 50 | 385 | > 800 | CSP Tower Plants, Advanced Coal Retrofitting |
| NaCl-KCl | 50 / 50 | 658 | > 900 | Ultra-high-temp short-term heat transfer |
| KCl-MgCl2 | 68 / 32 | 426 | > 850 | Gen-IV Molten Salt Nuclear Reactors (MSR) |
| ZnCl2-NaCl-KCl | 60 / 20 / 20 | 203 | > 600 | Flexible low-melting thermal storage systems |
The primary engineering hurdle of chloride salts is their potential to cause corrosion in common structural alloys. Under high temperatures, residual water vapor or oxygen in the salt promotes the formation of hydrochloric acid and metal oxides, which degrade containment vessels. Shanxi Vojin New Materials employs strict thermal dehydration protocols under dynamic gas sweeping, ensuring moisture content is reduced to ppm levels before sealing. Furthermore, the inclusion of oxygen scavengers like Magnesium metal is recommended during commissioning to maintain long-term redox neutrality.
Chlorides possess volumetric heat capacities comparable to, or exceeding, conventional nitrate combinations while featuring a significantly higher operational window. The density of NaCl-KCl-MgCl2 remains above 1.6 g/cm³ at 700°C, and its dynamic viscosity stays remarkably low, facilitating low pump parasitics. This thermodynamic profile allows developers to shrink system footprints, reducing the volume of piping, insulation, and structural support required.
Discover how Shanxi Vojin New Materials utilizes high-purity chlorides and nitrates to solve energy, industrial, and agricultural challenges.
Enabling utility-scale concentrated solar power towers to achieve dispatchability. Chloride salts act as a massive thermal battery, storing heat during daylight and generating superheated steam to drive turbines overnight.
Industrial-grade nitrates and chlorides serve as molten chemical tempering bath compositions for glass processing. Potassium exchange dynamics reinforce high-aluminosilicate glass substrates for smart electronics.
Facilitating the transition of conventional coal-fired thermal plants. Decarbonizing industrial steam boilers by routing electricity from wind or solar arrays to molten salt heating systems, eliminating direct fossil-fuel combustion.
Leveraging by-product optimization to manufacture fully water-soluble agricultural nutrients. Nitrogen-rich compounds such as potassium nitrate and calcium ammonium nitrate enhance yield potentials in drip-irrigation networks.
The macroeconomic changes fueling the global demand for ultra-pure molten chloride mixtures.
European chemical sectors and metallurgical processing loops are adopting molten salt thermal batteries. Utilizing low-cost off-peak wind energy to melt chloride eutectics, industrial processes can operate continuously at 750°C without drawing from local natural gas reserves.
US DOE-funded initiatives are emphasizing molten salt chemistry for fast neutron reactors. High-purity chlorides provide low neutron absorption cross-sections and exceptional heat removal capacity, reducing risk Profiles in sub-critical assemblies.
Driven by aggressive carbon peak initiatives, China and surrounding regions are retrofitting aging coal power stations into clean heat sinks. The massive heat capacity of eutectic salts acts as the core storage buffer replacing legacy combustion furnaces.
Discover why developers and EPC firms partner with Shanxi Vojin New Materials for bulk salt supplies.
Integrated experience on exporting operations. Always assuring your customers good quality, smooth customs clearance, and compliant packaging for hazardous materials transport.
Annual output of 600,000 Tons of Molten salts and related chemical products. Supporting rapid scaling, bulk discounts, and long-term price hedging.
Experienced technology skill & service team. Quick response to our customers regarding thermal calculations, eutectic ratio customization, and logistics.
Multiple items for selection such as KNO3, NaNO3, and chloride compounds to meet the diverse technical needs of global commercial customers.
Our long-term roadmap for high-temperature molten salt compounds and next-generation chemical design.
Refining mechanical filtration and chemical separation processes to consistently reduce trace heavy metals (Fe, Ni, Cr) in raw chlorides to under 10 ppm, minimizing aggressive local galvanic cell corrosion.
Developing commercial-grade nanoparticle additives (e.g., Al2O3, SiO2) that physically suspend within the molten matrix, enhancing specific heat capacity by up to 15% without reducing thermal range.
Establishing commercial reclaim networks for recycling spent, degraded thermal salts from decommissioned CSP and chemical processing hubs, returning them to high-purity industrial loops.
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