Explore our premium product portfolio synthesized using continuous fractionation and high-efficiency raw supply integrations.
In modern industrial chemistry, Naphtha (petroleum), hydrotreated heavy (CAS No. 64742-48-9) serves as one of the most versatile, high-utility hydrocarbon intermediates. Characterized by its complex mixture of saturated hydrocarbons, predominantly within the carbon number range of C6 to C13 and boasting a boiling spectrum of approximately 65°C to 230°C, this chemical profile represents a critical refining asset. The hydrotreatment process—utilizing catalytic hydrogenation—reconstructs the raw naphtha by eliminating sulfur and nitrogen compounds while saturating unstable olefins. This delivers an exceptionally clean, low-odor, and chemically stable solvent matrix.
Global demand for premium-grade, low-sulfur hydrotreated heavy naphtha is accelerating, dictated by increasingly rigorous occupational safety and environmental policies (such as Europe's REACH and the United States' EPA VOC mandates). As high-capacity manufacturers, Shandong Saier Chemical Technology Development Co., Ltd. stands at the forefront of this industrial revolution, providing critical information gain and technical transparency to global procurement managers looking for reliable, high-purity supply chains.
Our 720,000-ton annual production capacity enables uninterrupted wholesale distribution across major global markets, offering a comprehensive suite of high-boiling aromatic solvents (S-100 to S-200) alongside key fine chemical intermediates.
The macro-refining sector currently balances on a narrow axis of supply optimization. Historically, raw naphtha fractions were directed solely to catalytic reforming units for high-octane gasoline blending or to steam crackers for ethylene and propylene synthesis. However, specialized downstream sectors—ranging from automotive coatings and wood preservatives to agricultural emulsifiable concentrates—require custom-tailored distillation cuts with low aromatic footprints. This has given rise to the heavy hydrotreated solvent category.
Regionally, the market presents varying demands. The North American and European sectors emphasize high-flash-point hydrotreated solvents with ultra-low aromatic content (to avoid strict GHS hazard classification). Conversely, the Asia-Pacific region, led by China's manufacturing base, represents the fastest-growing industrial consumer. This dual demand is met through advanced fractionated distillation, separating the broad hydrotreated heavy naphtha stream into specific, predictable solvents like S-100, S-150, S-150ND (naphthalene depleted), and S-200. Maintaining structural stability and supply reliability across these sectors requires massive refinery infrastructure and robust financial foundations.
Key technical indices of our hydrotreated heavy naphtha series:
The synthesis of premium Naphtha Hydrotreated Heavy requires extreme operational precision. In typical refinery configurations, straight-run heavy naphtha derived from atmospheric distillation units is rich in organic sulfur (mercaptans, thiophenes) and nitrogen compounds. These chemical impurities not only pose environmental risks when oxidized but also poison downstream conversion catalysts (such as platinum-rhenium matrices in reforming units). To convert these crude fractions, our plant utilizes deep hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) systems.
By forcing the reaction under temperatures of 300°C to 400°C and pressures of 30 to 100 bar over high-efficiency Ni-Mo or Co-Mo catalysts, we reduce sulfur contaminants down to parts-per-million levels. The resulting stream is subsequently fractionated via continuous rectification. This allows us to supply highly specific boiling range solvents (Solvent Naphtha, TOPSOL, KOCOSOL, Aromatic Hydrocarbon, TOLUENE AROMATIC HYDROCARBON, NAFTA DISOLVENTE SOLVESSO) which serve as the foundation of modern high-performance industrial coatings, agrochemicals, and heat transfer fluids.
CAS No.: 64742-95-6
Separated via continuous rectification, offering a colorless, transparent, high-solvency aromatic organic solvent profile.
Specialized Intermediates
High-purity organic synthesis building blocks, customized to meet strict regulatory and composition limits.
High-Stability Formulations
Engineered for closed heat transfer systems requiring excellent thermal oxidation stability and long operational life.
Process Building Blocks
High-grade precursors including Thiophene, MIPK, and Durene derived from integrated refinery stream processing.
Naphtha Hydrotreated Heavy and its specialized distillation fractions serve critical functions in various global and localized industrial ecosystems.
Agrochemical formulations (specifically Emulsifiable Concentrates - EC) demand high-solvency solvents that can dissolve active pesticide ingredients without phytotoxicity. Our low-naphthalene aromatic solvents (S-150ND, S-200) act as stable, high-boiling carriers, ensuring optimal dispersion and uniform agricultural application.
In the architectural and automotive coatings industries, drying speed, gloss development, and leveling behavior are heavily controlled by the solvent evaporation profile. Hydrotreated heavy naphtha fractions provide controlled volatility, low odor, and uniform film-forming parameters for marine paints and wood varnishes.
Web offset printing and gravure packaging require high-solvency components with high flash points to prevent occupational hazards. Our heavy aromatic fractions enable precise viscosity regulation and pigment dispersion without damaging printing machinery components.
During crude extraction and transport, paraffin deposition can choke pipelines. Hydrotreated heavy naphtha functions as an exceptional carrier solvent for drag reducers, corrosion inhibitors, and pour-point depressants, optimizing oilfield production efficiency.
Metal processing plants require robust, low-corrosion solvents for surface cleaning before welding or powder coating. The high stability and low flammability of hydrotreated heavy naphtha fractions make them ideal for automated closed degreasing systems.
Beyond solvent applications, the fractions serve as direct feedstocks for synthesis of high-value intermediates, plastics additives (PVC plasticizers), durene extraction, and specialized derivatives utilized in pharmaceutical and dye industries.
Founded in December 2004, Shandong Saier Chemical Technology Development Co., Ltd. has established itself as an innovative, highly capable supplier in the international petrochemical landscape. Situated at No. 207, WeiLiu Road, Qilu Chemical Industrial Park, Linzi, Zibo City, Shandong Province, the company leverages Zibo's long heritage as a chemical refining center. With an initial registered capital of 60 million yuan, Saier established deep financial security and built long-term strategic alliances with major refiners such as Sinopec, PetroChina, ChemChina, Zhejiang Petrochemical, and Hengli Petrochemical. This guarantees consistent access to top-grade crude C9, C10, and straight-run naphtha streams.
Our production facilities have achieved an annual capacity of 720,000 tons, catering to both domestic hubs (Beijing, Shanghai, Tianjin, Hebei, Shandong, Henan) and global markets in Europe, North and South America, Southeast Asia, and the Middle East. Over decades of innovation, we transitioned from basic solvent synthesis to high-value fine chemical materials, earning recognition as a national high-tech enterprise. This enables us to continually invest in advanced emissions abatement, automated process controls, and specialized hydrotreating configurations to offer products with minimal environmental footprint.
Global procurement teams favor Chinese manufacturers for their distinct structural and operational efficiencies. Here is how Shandong Saier Chemical optimizes this ecosystem:
Located in the Qilu Chemical Industrial Park, our plant connects directly to massive localized upstream pipelines. This eliminates inter-provincial shipping costs for raw intermediates and secures reliable inputs during high-demand seasons.
We implement state-of-the-art Distributed Control Systems (DCS) for continuous rectification. Automated tracking of temperature, pressure, and flow rates ensures batch-to-batch consistency and significantly reduces human operational errors.
Our strategic relationships with top national refiners (Sinopec, PetroChina) ensure that our raw C9-C10 feedstock is of premium origin, preventing downstream impurities and catalyst poisoning in our hydrotreating units.
Our high refining throughput provides significant economies of scale. We pass these savings directly to our global buyers, offering wholesale price terms that stand out in international bidding.
Every single batch undergoes rigorous gas chromatography (GC) and mass spectrometry testing in our state-of-the-art on-site laboratories. We provide full COA (Certificate of Analysis) and support third-party SGS or Intertek inspection prior to loading.
Proximity to Qingdao Port enables us to coordinate rapid maritime shipments. We support diverse shipping models, including ISO Tanks for bulk liquid solvents, Flexibags for cost-effective containment, and standard steel drum shipments.
The global hydrocarbon solvents market is undergoing a structural transition toward environmental compliance and toxicity reduction. Traditional high-sulfur, high-aromatic solvents are being phased out in favor of hydrotreated alternatives. This transition is highlighted by several key developments:
Get answers to technical, logistical, and compliance questions about hydrotreated heavy naphtha and specialty solvents.
Raw naphtha is a straight-run refinery distillation cut that contains significant amounts of sulfur compounds, nitrogen, and unsaturated olefins. This makes it chemically unstable, foul-smelling, and highly reactive. Naphtha Hydrotreated Heavy has undergone catalytic hydrogenation (treating with hydrogen over Co-Mo or Ni-Mo catalysts under high temperature and pressure). This process removes up to 99% of sulfur and nitrogen impurities and saturates olefins, resulting in an exceptionally stable, low-odor, and low-toxicity hydrocarbon solvent with a boiling range of 65°C to 230°C.
Our manufacturing plant employs an advanced Distributed Control System (DCS) to monitor the continuous rectification towers and catalytic reactors in real-time. By locking in distillation temperatures, reflux ratios, and reactor pressures, we guarantee consistent boiling point ranges, aromatics distribution, and solvent density. Additionally, every batch is analyzed in our QC lab via gas chromatography (GC) before loading. We provide a full Certificate of Analysis (COA) detailing physical and chemical properties and support pre-shipment inspections by independent third parties such as SGS or Intertek.
We provide comprehensive global shipping options tailored to buyers' volume and port infrastructure. Bulk orders can be dispatched via dedicated chemical cargo vessels. For containerized transport, we offer specialized ISO Tank containers, heavy-duty Flexitanks (ideal for cost-efficient bulk liquid transport inside standard 20ft dry containers), and standard 200L steel drums. Our proximity to Qingdao Port allows us to easily coordinate logistics and ensure timely customs clearance and sailing schedules.
Under international GHS and REACH guidelines, solvents containing more than 1% naphthalene must carry specific hazard classification labels indicating potential carcinogenic risks. To help our clients bypass these strict labelling requirements and protect worker safety, Saier Chemical produces naphthalene-depleted grades (e.g., S-150ND). By utilizing advanced fractionation systems, we reduce naphthalene content to less than 0.1%, ensuring regulatory compliance in highly regulated markets such as the EU and North America.
Alongside our main aromatic solvents (S-100, S-150, S-180, S-200), our integrated refinery stream allows us to produce high-value fine chemical materials and intermediates. These include Thiophene (CAS 110-02-1), Methylaminoformyl chloride (MCC), Methyl Isopropyl Ketone (MIPK), Durene, Pyromellitic Acid (PMA), Hypophosphorous Acid, Sodium Hypophosphite, and specialized Heat Transfer Oils (L-QC320). This diverse product range allows global buyers to consolidate their chemical sourcing needs with a single trusted partner.
Yes. As a direct manufacturer with deep R&D and fractionation capabilities, we can adjust the boiling range cuts and blend custom aliphatic-aromatic ratios to match client specifications. Our technical engineering team works closely with clients to understand their application needs (such as Kauri-Butanol values, evaporation rate parameters, and flash point thresholds) to formulate the ideal solvent solution.
Whether you require bulk delivery of Naphtha Hydrotreated Heavy, custom high-boiling aromatic solvents, or fine chemical intermediates, our engineering and logistical teams are ready to support your supply chain. We optimize our production processes to lower energy consumption and waste, ensuring high efficiency and competitive pricing.
Explore our premium product portfolio synthesized using continuous fractionation and high-efficiency raw supply integrations.
Saier Chemical
