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Composite calcium sulphonic consistent grease and preparation method thereof

A technology of compound calcium sulfonate and lubricating grease, which is applied in lubricating compositions, petroleum industry, base materials, etc., can solve the problems of high cost and high dosage, and achieve good water resistance, good corrosion resistance, excellent extreme pressure and anti-wear performance effect

Inactive Publication Date: 2008-12-10
杭州得润宝油脂股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Though domestic technical literature describes the preparation method of this type of lubricating grease, as CN1718700A, CN1414076A, CN101153239A, but adopt super high alkali number (TBN400 left and right) among CN101153239A, and consumption reaches 30-40% (percentage by weight), although all the other are in order to reduce Cost, high alkali value (TBN300 or so) is mostly used, but the dosage is higher, and the cost is still high

Method used

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  • Composite calcium sulphonic consistent grease and preparation method thereof
  • Composite calcium sulphonic consistent grease and preparation method thereof
  • Composite calcium sulphonic consistent grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] In a volume of 80L with heating and stirring normal pressure reactor, drop into 5Kg of high alkali value synthetic calcium sulfonate with total base value of 396mgKOH / g, 11Kg of HVI150BS lubricating base oil and water 0.85Kg of 30CSt kinematic viscosity at 100°C, Methyl cellulose 0.5Kg, 12 hydroxystearic acid 0.25Kg, calcium hydroxide 0.12Kg, stir, heat up, slowly add acetic acid 0.18Kg at 82°C, stir and heat up to 88-104°C temperature range, constant temperature for 1.5 hours, the material gradually Fatty; add 6Kg of HVI150BS lubricating base oil, 0.186Kg of calcium hydroxide (diluted with 2.6 times of water to form a suspension), 0.6Kg of boric acid (diluted with 3 times of water), heat up to 88 ° C, at 88 Keep the temperature at -96°C for 30 minutes; heat to 98°C, add 0.42Kg 12 hydroxystearic acid, keep the temperature at 98-105°C for 45 minutes; heat up to 160-210°C for high-temperature melting, cool down to 110°C, circulate and homogenize , Degassing to become a fi...

Embodiment 2

[0051] Put 6Kg of high alkali value synthetic calcium sulfonate with a total base value of 406mgKOH / g, 12Kg of 500SN lubricating base oil with a kinematic viscosity of 9.5CSt at 100°C, and 0.84Kg of water in an 80L atmospheric pressure reactor with heating and stirring , methyl amyl alcohol 0.28Kg, 12 hydroxystearic acid 0.3Kg, calcium hydroxide 0.2Kg, stir, heat up, slowly add acetic acid 0.32Kg at 82 ℃, stir and heat up to 88-104 ℃ temperature range constant temperature 1.5 hours, material Gradually become fat; add 5.5Kg of 500SN lubricating base oil, 0.16Kg of calcium hydroxide (diluted with 2.6 times of water to form a suspension), 0.5Kg of boric acid (diluted with 3 times of water), heat up to 88 ° C, Keep the temperature constant at 88-96°C for 30 minutes; heat to 98°C, add 0.8Kg12 hydroxystearic acid, keep the temperature at 98-105°C for 45 minutes; heat up to 160-210°C for high-temperature melting, cool down, when the temperature drops to 120 ℃, add 0.15Kg of diphenyla...

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Abstract

The invention relates to a composite calcium sulfonate grease and a preparation method thereof. The composite calcium sulfonate grease comprises: (A) base oil which accounts for 50-80 percent of the total weight of the grease; (B) calcium alkylbenzenesulfonate with a super high base number accounting for 10-30 percent of the total weight of the grease; (C) a composite thickener consisting of hydroxy fatty acid of C12-C22 accounting for 0.5-5 percent of the total weight of the grease, boric acid accounting for 0.5-3 percent of the total weight of the grease, and calcium hydroxide accounting for 0.5-2 percent of the total weight of the grease; (D) a disperser or similar matter accounting for 0.5-4 percent of the total weight of the grease; and (E) a transforming agent. The composite calcium sulfonate grease is prepared through the processes of mixing, stirring, heating up, homogenizing, degassing, etc. The grease not only has the advantages of high drop point, good thermal stability at a high temperature, good water resistance, good corrosion protection, excellent extreme pressure anti-wear properties, etc., but also is characterized by high drop point, good rust and corrosion resistance without additives, extreme pressure anti-wear properties, good mechanical stability, colloid stability, and nonhardening property for a long-period storage.

Description

technical field [0001] The invention relates to an ultra-high base value composite calcium sulfonate lubricating grease and a preparation method thereof, to be precise, a low-cost high-performance composite calcium sulfonate lubricating grease and a preparation method thereof. Background technique [0002] In the mid-1980s, with the patented technology of ultra-high alkalinity composite calcium sulfonate grease improved with boric acid developed by Ron Muir et al. Fatty acid and calcium borate are combined to make ultra-high-alkaline complex calcium sulfonate grease. Its composition and performance are very different from the previous complex calcium sulfonate base grease. It not only overcomes the shortcomings of poor low-temperature pumpability and aging hardening, And it has excellent high and low temperature performance, mechanical stability, colloidal stability, oxidation stability, water resistance, corrosion resistance and anti-rust and anti-wear properties. Since th...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10M101/02C10M135/10C10M117/00C10M113/08C10N20/02C10N30/04
Inventor 李元正张连惠
Owner 杭州得润宝油脂股份有限公司
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