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Nano calcium carbonate-containing calcium sulfonate complex grease and production method thereof

A technology of nano-calcium carbonate and composite calcium sulfonate, applied in lubricating compositions, petroleum industry, etc., can solve the problems of insufficient extreme pressure and anti-wear performance, poor thermal stability, low conversion speed and conversion rate, etc., and achieve improved thermal stability Performance and extreme pressure anti-wear properties, increase conversion speed and conversion rate, and reduce production costs

Inactive Publication Date: 2011-03-30
WUXI HUIYUAN PACKAGING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of composite calcium sulfonate lubricating grease containing nano-calcium carbonate and its production method, which overcomes the shortcomings of poor thermal stability and insufficient extreme pressure and anti-wear performance of existing similar products, simplifies the preparation process, At the same time, it overcomes the problems of low conversion speed and conversion rate

Method used

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  • Nano calcium carbonate-containing calcium sulfonate complex grease and production method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In a reactor with a stirrer, add 200 kg of HVI500 (kinematic viscosity at 40°C: 97mm 2 / s, accounting for 37.8% of the total weight of the base oil) and 400 kg of synthetic calcium sulfonate with a total base value of 250mgKOH / g (40% of the total amount of grease raw materials), stir and heat to 60℃, add 50 kg of water And 50 kg of HBS (5% of the total amount of lubricating grease raw materials), stir and heat up to 80~95℃ constant temperature conversion reaction, until the conversion is complete (use infrared spectroscopy to monitor amorphous calcium carbonate at 862cm -1 The characteristic absorption peak disappears, and the reaction takes about 0.5 hour to 1 hour). Add 10 kg of nano calcium carbonate (1% of the total amount of grease raw materials), stir for 5 minutes, and then sequentially add 5 kg of boric acid (0.5% of the total amount of grease raw materials) and 25 kg of hot solution of water, 5 kg of 12 -Hydroxystearic acid (0.5% of the total amount of lubricatin...

Embodiment 2

[0027] In the reactor with agitator, add 200 kg of 150BS base oil (accounting for 30.3% of the total weight of the base oil) and 100 kg of synthetic calcium sulfonate with a total base value of 400 mgKOH / g (10 %), stir and heat to 60℃, add 50 kg of water and 10 kg of HBS (1% of the total amount of lubricating grease raw materials), stir and raise the temperature to 80~95℃ for constant temperature conversion reaction, until the conversion is complete (no infrared spectroscopy monitoring Shaped calcium carbonate at 862cm -1 The characteristic absorption peak disappears, and the reaction takes about 0.5 hour to 1 hour). Add 100 kg of nano calcium carbonate (10% of the total amount of grease raw materials), stir for 5 minutes, and then sequentially add 30 kg of boric acid (3% of the total amount of grease raw materials) and a hot solution of 90 kg of water, 50 kg 12 -Hydroxystearic acid (5% of the total lubricating grease raw materials), stir dehydration and add 329 kg of 150BS bas...

Embodiment 3

[0029] In the reactor with agitator, add 150 kg of 150BS (30% of the total base oil) and 350 kg of synthetic calcium sulfonate with a total base value of 300mgKOH / g (35% of the total grease raw materials) , Stir and heat to 60℃, add 50 kg of water and 30 kg of HBS (3% of the total amount of grease raw materials), stir and heat to 80~95℃ constant temperature conversion reaction, until the conversion is complete (use infrared spectroscopy to monitor amorphous carbonic acid Calcium at 862cm -1 The characteristic absorption peak disappears, and the reaction takes about 0.5 hour to 1 hour). Add 50 kg of nano calcium carbonate (5% of the total amount of grease raw materials), stir for 5 minutes, and then sequentially add 10 kg of boric acid (1% of the total amount of grease raw materials) and 50 kg of water in a hot solution, 30 kg 12 -Hydroxystearic acid (3% of the total amount of lubricating grease raw materials), stir and dehydrate and add 250 kg of HVI150 (50% of the total amo...

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Abstract

The invention relates to nano calcium carbonate-containing calcium sulfonate complex grease and a production method thereof. The grease comprises the following components in percentage by weight: 10 to 40 percent of high base-value calcium alkylbenzenesulfonate, 50 to 85 percent of base oil, 1 to 10 percent of nano calcium carbonate, 0.5 to 5 percent of boric acid, 0.5 to 5 percent of saturated fatty acid with 12 to 22 carbon atoms, 0.1 to 5 percent of anti-oxidant additive and 1 to 5 percent of composite transformation accelerator HBS. The grease and the production method have the advantages that: a nano calcium carbonate material is added into the formula of the calcium sulfonate complex grease for the first time, so that the thermal stability and extreme pressure wearing resistance of the ordinary calcium sulfonate complex grease are enhanced and a preparation and operation process is simplified. Simultaneously, the composite transformation accelerator is adopted, so that transformation speed and transformation rate are increased and production cost is lowered.

Description

technical field [0001] The invention relates to the field of lubricants, in particular to a composite calcium sulfonate grease and a production method thereof. Background technique [0002] Since the 1980s, complex calcium sulfonate grease has been studied and applied abroad, and many patented technologies have been formed. Such as: US4,560,489, US4,824,584, US5,126,062, US5,308,514, US5,338,476, etc. Although domestic research on complex calcium sulfonate grease is relatively late, it has developed rapidly, and patented technologies have been produced continuously. For example, the published or authorized patents include: CN02130820.9, CN200510047000.8, CN200510073101.2, CN200710131339.5, CN200810063176.6, CN200810101182.6, CN201010105181.6, CN2010101988, etc. [0003] The thickener of complex calcium sulfonate grease is mainly high alkali value calcium sulfonate (an indispensable detergent additive for engine oil), and the calcium carbonate is amorphous calcium carbonate...

Claims

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Application Information

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IPC IPC(8): C10M169/06C10M177/00C10N50/10C10N30/06
Inventor 冯克权缪冬琴
Owner WUXI HUIYUAN PACKAGING TECH
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