Your Professional Sulfurized Alkylphenate Detergents Supplier
Since its establishment in 2010, Sinolook has been deeply involved in the energy and chemical sectors and has become one of the leading base oil and petrochemical traders in China and Asia. In the niche field of fine chemicals, we have a deep understanding of the characteristics and application scenarios of each type of product.
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Low TBN Calcium Sulfurized AlkylphenateLow TBN Calcium Sulfurized Alkylphenate (TBN 30–80 mgKOH/g, Ca 2–8%) is a calcium phenate detergent uniquely carrying a built-in phenolic antioxidant (phenol –OH radical scavenger) and secondary
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Medium TBN Calcium Sulfurized AlkylphenateMedium TBN Calcium Sulfurized Alkylphenate (C₁₅H₂₃O₂S₂Ca, TBN 120–180 mgKOH/g, Ca 3–9%) is the primary phenate co-detergent for heavy-duty diesel engine oils (API CK-4/FA-4, ACEA E6/E9), marine trunk
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High TBN Calcium Sulfurized AlkylphenateHigh TBN Calcium Sulfurized Alkylphenate is a premium engine oil detergent additive designed to deliver strong acid neutralization, excellent detergency, and superior oxidation resistance.
Why Choose Us
Reliable Global Logistics
We integrate international logistics resources to build a cross-border supply chain network covering major ports, and can provide flexible logistics solutions such as door-to-door, multimodal transportation, warehousing and distribution according to customer needs to ensure that goods arrive safely and on time to global destinations.
Integrated solution
We are committed to providing global customers with accurate, efficient and reliable integrated solutions for fine chemical procurement and logistics.
Fast Response & Professional Support
Our experienced sales and logistics teams provide responsive communication, technical assistance, and efficient service support throughout every stage of cooperation.
Strict Quality Control
We Comprehensive supplier evaluation and quality inspection procedures ensure product consistency, compliance, and reliable performance throughout the supply chain.
What is Sulfurized Alkylphenate Detergents
Sulfurized alkyl phenate detergents (often calcium phenates) are premium lubricant additives primarily used in engine oils to keep internal components clean, neutralize corrosive acids formed during combustion, and prevent harmful varnish or sludge deposits.
Specification
|
Parameter |
Specification |
Test Method |
Note |
|
Appearance |
Clear to amber-brown liquid |
Visual |
Clearer than overbased Ca sulfonate; darker amber at higher Ca content; mild characteristic phenol/sulfur odour |
|
TBN |
30–80 mgKOH/g |
ASTM D2896 |
Ca-phenate TBN reserve (vs CaCO₃ in sulfonates); specify sub-grade at order |
|
Calcium Content |
2–8 wt% |
ASTM D5185 / ICP-OES |
Ca% × 3.40 ≈ sulphated ash% in finished oil; confirmed on COA |
|
Sulphur Content |
Sulfurized level (COA) |
ASTM D2622 / D5185 |
Sulfur from –S– bridges; contributes to finished oil S wt% - monitor ACEA A3/B4 (S ≤0.3%) and C-sequence (S ≤0.3%) limits |
|
Flash Point (COC) |
≥ 180°C |
ASTM D92 |
Combustible liquid; standard storage; not classified DG under IMDG/ADR/IATA |
|
Kinematic Viscosity @100°C |
Grade-dependent |
ASTM D445 |
Typically 10–60 cSt; good ambient fluidity; no heating requirement for most grades |
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Packaging |
200 kg drum · 1000 L IBC · ISO tank |
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Ambient temperature handling for all Low TBN grades; sealed storage essential (moisture ≤0.2%); 24-month shelf life |
Superior Acid Neutralization: They efficiently neutralize corrosive combustion by-products (like sulfuric acid) to prevent premature engine wear and metal degradation.
High-Temperature Detergency: They are highly effective at suppressing and dissolving carbon deposits in the top ring grooves of pistons, especially in supercharged diesel engines.
Outstanding Antioxidant Capacity: Unlike traditional detergent alternatives, the phenolic structure provides inherent oxidation-inhibiting capabilities, prolonging the life of the lubricant.
Corrosion & Rust Protection: By forming a protective film and suspending acidic contaminants, they protect sensitive engine metals (such as lead and copper) from rusting and corrosive wear.
Good Alkali Retention: They maintain their Total Base Number (TBN) effectively over extended service intervals, making them a cornerstone additive for severe-duty marine and heavy-duty engine oils.

Application of Sulfurized Alkyl Phenate Detergents
Marine & Large Stationary Engines
Widely used as a primary additive in marine cylinder lubricants due to their exceptional alkali (base) retention and water-separation capabilities. They neutralize strong acids formed by high-sulfur fuels.
Heavy-Duty Diesel Oils
Utilized in crankcase oils to prevent piston ring sticking and minimize carbon deposits in high-temperature piston top ring grooves.
Automotive & Industrial Lubricants
Act as an anti-wear and anti-corrosive agent in internal combustion engine oils, hydraulic fluids, and industrial gear oils.
Packing&Storage
Packing: (Net weight: 200kg/drum).
Shelf Life: (Production Date refer to every batch)
Storage: Please refer to standard when stored, loaded and unloaded, oil blending. Keep the temperature not higher than 75°C. For long-term storage, please be stored in dry, clean and well ventilated warehouses,the suggested temperature is lower than 45°C.
FAQ
As one of the most professional sulfurized alkylphenate detergents manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy high-grade sulfurized alkylphenate detergents made in China here from our factory. For price consultation, contact us.
