Compound calcium sulfonate base lubricating grease and preparation method thereof

A technology of compound calcium sulfonate and lubricating grease, which is applied in lubricating compositions, petroleum industry, etc., can solve the problems of poor centralized lubricity, low extreme pressure performance, short service life, etc., and achieve low cost and long service life , The effect of reducing maintenance time

Active Publication Date: 2012-10-03
XINXIANG HENGXING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to problems in raw materials, proportioning and production method control in the current production process, the complex calcium sulfonate-based grease produced cannot meet the requirements of use in many harsh environments. Grease mainly has the following disadvantages: it is not resistant to high temperature, and its dropping point is at 280 o Below C; the extreme pressure performance is not great: four-b

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0009] Example 1

[0010] Put 230kg of calcium sulfonate with alkali value greater than 320KOH / g and 130kg of base oil into the pressure reactor, and heat up to 50 o C. Add 23kg of transforming agent ethanol and 12kg of dry ice to the reaction kettle, and then cover it, release the pressure when the pressure exceeds 0.2MPa, keep the pressure not greater than 0.2MPa, and increase the temperature to 83 o After C, keep the temperature for 30 minutes, add 8kg of acetic acid (diluted with water of 3 times the mass of acetic acid in advance) and 7.5kg of 12-hydroxy fatty acid, and heat to 88 o C~90 o C constant temperature for 1.5h, the material thickens, add 4kg calcium hydroxide (dilute with 3 times the mass of calcium hydroxide), stir for 10min, add 5kg boric acid (dilute with 4 times the mass of boric acid, and heat to 95 o C, make it a hot water solution), continue to heat to 88 o C~90 o C keep constant temperature for 20min, then heat up to 180 o C keep constant temperature ...

Example Embodiment

[0011] Example 2

[0012] Put 220kg of calcium sulfonate with alkali value greater than 320KOH / g and 120kg of mineral oil into the pressure reactor, and heat up to 50 o C. Add 22kg of transforming agent methanol and 10kg of dry ice to the reaction kettle, then cover it, release the pressure when the pressure exceeds 0.2MPa, keep the pressure not greater than 0.2MPa, and increase the temperature to 83 o After C, keep the temperature for 30 minutes, add 6kg of acetic acid (diluted with water of 3 times the mass of acetic acid in advance) and 6.5kg of 12-hydroxy fatty acid, and heat up to 88 o C~90 o C constant temperature for 1.5h, the material thickens, add 3kg calcium hydroxide (dilute with 3 times the mass of calcium hydroxide), stir for 10min, add 4kg boric acid (dilute with 4 times the mass of boric acid, and heat to 95 o C, make it a hot water solution), continue to heat to 88 o C~90 o C keep constant temperature for 20min, then heat up to 180 o C keep constant temperatu...

Example Embodiment

[0013] Example 3

[0014] Put 240kg of composite calcium sulfonate with alkali value greater than 320KOH / g and 240kg of synthetic oil into the pressure reactor, and heat up to 50 o C. Add 24kg of the mixture of methanol and ethanol and 14kg of dry ice into the reaction kettle, then cover it, release the pressure when the pressure exceeds 0.2MPa, keep the pressure not greater than 0.2MPa, and increase the temperature to 83 o After C at a constant temperature for 30 minutes, add 10 kg of acetic acid (preliminarily diluted with water of 3 times the mass of acetic acid) and 8.5 kg of 12-hydroxy fatty acid, and heat to 88 o C~90 o C constant temperature for 1.5h, the material thickens, add 5kg calcium hydroxide (dilute with 3 times the mass of calcium hydroxide), stir for 10min, add 6kg boric acid (dilute with 4 times the mass of boric acid, and heat to 95 o C, make it a hot water solution), continue to heat to 88 o C~90 o C keep constant temperature for 20min, then heat up to 180...

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Abstract

The invention discloses compound calcium sulfonate base lubricating grease and a preparation method thereof. The key points of the technical scheme of the invention lie in that the compound calcium sulfonate base lubricating grease is prepared by adding calcium sulfonate in an inorganic substance and an organic substance compound calcium soap and thickening base oil, and an arylamine antioxidant is added in a thickening procedure. The high-performance compound calcium sulfonate base lubricating grease is prepared and acquired in a certain raw material ratio and operation condition. By using the compound calcium sulfonate base lubricating grease and the preparation method, the cost of a user is reduced; a product has favorable water resistance, lubricating property and high temperature resistance, cannot be emulsified and degreased, and is not easy to run off; the service life of mechanical equipment is prolonged; the maintenance time of the equipment is decreased; the production efficiency of the equipment is improved; a raw material formula is reasonable; the cost is low; the emission of three wastes does not exist in a production procedure; the compound calcium sulfonate base lubricating grease and the preparation method are environment-friendly while an industrial requirement is met; and the preparation method is a green production process.

Description

technical field [0001] The invention relates to a composite calcium sulfonate-based lubricating grease and a preparation method thereof, in particular to a composite calcium sulfonate-based grease with excellent high-temperature performance and thermal reversibility, which uses a composite calcium soap containing calcium sulfonate salt as a thickening agent. Lubricating grease and method for its preparation. Background technique [0002] High base value complex calcium sulfonate-based grease has excellent extreme pressure, anti-wear performance, water resistance, salt spray resistance, corrosion resistance, high dropping point, good thermal stability at high temperature, etc., and is widely used in High-temperature, heavy-duty and water-rich environments such as automobiles, steel, mines, and papermaking. At present, there are two main processes for preparing complex calcium sulfonate-based grease: one is to introduce CO into the system of mixing neutral calcium sul...

Claims

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Application Information

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IPC IPC(8): C10M169/06C10M177/00C10N30/06C10N30/08C10N50/10
Inventor 周忠太李建锋王利霞张丹时红敏
Owner XINXIANG HENGXING TECH CO LTD
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