Petrochemical industry standard first-grade product extreme pressure composite lithium-based lubricating grease and preparation method thereof

The invention relates to petrochemical industry standard first-grade product extreme pressure composite lithium-based lubricating grease and a preparation method thereof. The petrochemical industry standard first-grade product extreme pressure composite lithium-based lubricating grease is prepared from the following raw materials in parts by weight: 30 to 70 parts of paraffin-based base oil; 10 to40 parts of synthetic base oil; 8 to 14 parts of higher fatty acid, 1.5 to 3.5 parts of composite acid, 1.5 to 3.5 parts of lithium hydroxide monohydrate, 1 to 3 parts of tackifier, 3 to 6 parts of extreme pressure anti-wear agent, 0.5 to 3.5 parts of self-repairing additive, 0.2 to 1.2 parts of composite antioxidant and 0.1 to 0.8 part of corrosion inhibitor. The petrochemical industry standardfirst-grade product extreme pressure composite lithium-based lubricating grease has excellent comprehensive performance, has a certain self-repairing function, has an ultra-long service life, and canplay a long-term lubricatin