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Lubricants on the base of calcium complex sulfonate with modified thickener structure Andrey Yasnovsky, Technical Director, TOTAL Lubrifiants Russia and CIS
Requirements of the European market concerning the main types of lubricants Resistance to high temperatures Super high pressure Corrosion protection Water resistance Self-recovery Mechanical stability and resistance to shift Good pumpability (providing the pressure in the centralised lubricant feed system is no lower than 60 bar) Cost requirements: the average cost of lubricant with a Ca thickener does not exceed 10% - 25% of that of the most widespread Li thickener, even though it has higher operating attributes
(R - SO3)2Ca + CaCO3 (amorphous phase) + promoting agent + polar solvent ? (R -SO3)2Ca + CaCO3 The process of slow homogenisation is very important for the future stable operation of the lubricant (TOTAL Ceran) Thickener: basis of the technology
Thickener – base (standard) Calcium sulphonate (composite)
Vaterite Calcite A poor barrier for water Possible forms of CaCO3 Unstable system The secret of the thickener – stable conditions of homogenisation, observance of the technology
New technologies: the additive is a part of the thickener Ca Ca Ca Ca Ca Ca Ca Ca Ca Ca Ca Carbonate Organic chains Size: 50 - 120 нм Additives and admixtures
Advantages of the composite thickener technology
Qualitative improvement of indications
TOTAL CERAN : Properties Advantages of the composite calcium thickener with modified additives. Anti-wear properties Anticorrosion properties Thermal stability Protective properties Extreme pressure Mechanical stability Service and storage life
High-temperature attributes Dropping point CERAN – Wide temperature range of application
High operational attributes – broad capabilities for use Ferrous and non-ferrous metallurgy Woodworking and paper production Application in marine units and mechanisms Heavy-duty bearings
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