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Composition of compound calcium sulfonate-based lubricating grease for improving high-temperature performance and preparation method thereof

A composite calcium sulfonate-based lubricating grease with high-temperature performance technology, applied in the field of lubricating grease, can solve problems such as short life, achieve the effects of prolonging retention, saving primary energy, and ensuring reliability

Inactive Publication Date: 2015-02-04
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of industrial technology, the requirements for lubricating grease are getting higher and higher, especially for some iron and steel industry equipment, bearings and gears generally have a short service life in harsh environments, but most of these parts are steel enterprise equipment Once the core components are damaged, it will have a great impact on the quality of the products produced. Therefore, how to play a greater role in these core components, prolong the service life, and ensure that the overall performance of the operating components is good is the direction pursued by the machinery and equipment industry.

Method used

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  • Composition of compound calcium sulfonate-based lubricating grease for improving high-temperature performance and preparation method thereof
  • Composition of compound calcium sulfonate-based lubricating grease for improving high-temperature performance and preparation method thereof
  • Composition of compound calcium sulfonate-based lubricating grease for improving high-temperature performance and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) Component: Overbased calcium sulfonate detergent (base value 320mgKOH / g): 200g (20.0%)

[0032]

[0033] 2) Production process: 200g (20.0%) of the overbased calcium sulfonate detergent with a base value of 320mgKOH / g is dropped into a small-sized autoclave, and 10g (1%) of methyl alcohol is added to carry out the production of calcite-structured calcium carbonate, stirring rapidly, Heat up to 90-100°C, keep the temperature until the system material gradually thickens, and gradually add lithium hydroxide powder 10g (1%), salicylic acid 50g (5%), dodecyl Dibasic acid 50g (5%), after constant temperature reaction for 60 minutes, gradually increase the temperature, keep the temperature at 130-135°C for 60 minutes, gradually increase the temperature to 220-222°C for 5-10 minutes, adjust the consistency with polyolefin No. 8, The addition amount is 680g (68%), and finally the finished lubricating grease is 990g (methanol is volatilized during production, not in the com...

Embodiment 2

[0035] 1) Component: Overbased calcium sulfonate detergent (base value 320mgKOH / g): 350g (35%)

[0036]

[0037] 2) production process: 350g (35.0%) of the highly alkaline calcium sulfonate detergent with a base value of 320mgKOH / g is dropped into a small-sized autoclave, and 30g (3%) of methanol is added to carry out the production of calcite structure calcium carbonate, stirring rapidly, Heat up to 90-100°C, keep the temperature constant until the system material gradually thickens, and gradually add 20g (2%) of lithium hydroxide powder, 80g (8%) of salicylic acid, and dodecane to the system at a temperature of 95-100°C Dibasic acid 100g (10%), after constant temperature reaction for 60 minutes, gradually increase the temperature, keep the temperature at 130-135°C for 60 minutes, gradually increase the temperature to 220-222°C, keep the temperature for 5-10 minutes, adjust the consistency with polyolefin No. 8, The addition amount is 420g (42%), and the final product lubr...

Embodiment 3

[0039] 1) Components: overbased calcium sulfonate detergent (base value 320mgKOH / g): 350g (35%)

[0040]

[0041] 2) production process: 350g (35.0%) of the highly alkaline calcium sulfonate detergent with a base value of 320mgKOH / g is dropped into a small-sized autoclave, and 30g (3%) of methanol is added to carry out the production of calcite structure calcium carbonate, stirring rapidly, Heat up to 90-100°C, keep the temperature until the system material gradually thickens, and gradually add lithium hydroxide powder 13g (1.3%), salicylic acid 80g (8%), hexadecyl Dibasic acid 100g (10%), after constant temperature reaction for 60 minutes, gradually increase the temperature, keep the temperature at 130-135°C for 60 minutes, gradually increase the temperature to 220-222°C, keep the temperature for 5-10 minutes, adjust the consistency with polyolefin No. 8, The addition amount is 427g (42.7%), and the final product lubricating grease is 970g (methanol is volatilized during p...

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Abstract

The invention relates to a composition of compound calcium sulfonate-based lubricating grease for improving high-temperature performance and a preparation method thereof. The composition is prepared from a high-alkalinity calcium sulfonate cleaner, methanol, lithium hydroxide, salicylic acid, C12-C16 salicylic acid and base oil. The lubricating grease provided by the invention has relatively good high-temperature resistance and meets the seepage loss of ASTM D4290 and ASTM D1263 (industrial standard is SH / T0326). Experiments show that the seepage loss ranges from 5 to 10 which is obviously better than that (15-35g) of marketed products. The improving method provided by the invention can be used for prolonging the retentivity of the lubricating grease in a friction pair so as to ensure the operating reliability of equipment. The high-temperature performance of the prepared sample is obviously better than that of the marketed products.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, in particular to a method for improving the high-temperature performance of complex calcium sulfonate-based lubricating grease. Background technique [0002] With the development of industrial technology, the requirements for lubricating grease are getting higher and higher, especially for some iron and steel industry equipment, bearings and gears generally have a short service life in harsh environments, but most of these parts are steel enterprise equipment Once the core components are damaged, it will have a great impact on the quality of the products produced. Therefore, how to play a greater role in these core components, prolong the service life, and ensure the overall performance of the running parts is the direction pursued by the machinery and equipment industry. [0003] Grease usually contains two types of organic thickener and inorganic thickener. Most thickener types are o...

Claims

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Application Information

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IPC IPC(8): C10M117/00C10M177/00C10N50/10C10N30/08C10N40/02C10N40/32
Inventor 赵伟
Owner CHINA PETROLEUM & CHEM CORP
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