Compound sulphonic acid albany grease and method for producing the same

A composite calcium sulfonate-based grease and technology of composite calcium sulfonate, applied in the direction of lubricating compositions, etc., can solve the problem of excessive raw materials in the phase inversion process, affecting the overall quality of the composite calcium sulfonate-based grease, unstable phase inversion effect, etc. Problems, to achieve the effect of excellent pumping performance, excellent water resistance performance, and excellent water shear stability

Active Publication Date: 2008-04-02
无锡中石油润滑脂有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After reviewing and verifying the technical literature of many composite calcium sulfonate-based greases, it was found that the current phase-inversion accelerator used in the phase-inversion process has the problems of excessive raw materials and unstable phase-inversion effect, which directly affects the complex sulfonic acid Overall Quality of Calcium Lipids

Method used

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  • Compound sulphonic acid albany grease and method for producing the same

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The production method of composite calcium sulfonate base lubricating grease of the present invention adopts following processing steps: its component ratio is by weight percentage:

[0022] The present invention takes paraffin-based mineral oil: 150BS 42%, ultra-high base value synthetic calcium sulfonate: 35%, phase inversion accelerator: calcium carbonate 2%, isopropanol 2%, dodecylbenzenesulfonic acid 3%, Glacial acetic acid: 0.8%, water: 5%, calcium hydroxide: 5%, lauryl hydroxystearic acid: 4%, boric acid: 0.9% and dialkyl diphenylamine 0.3% are composite calcium sulfonate base lubricating grease of the present invention components.

[0023] Test conditions: self-made small test saponification kettle, open, oil bath heating, volume 8L, normal pressure, speed 60 rpm. Take paraffin-based mineral oil: 150BS and synthetic calcium sulfonate with high alkalinity and add them into an open reactor, stir and mix well, heat up to 70°C and add phase inversion accelerators: ...

Embodiment 2

[0025] The production method of composite calcium sulfonate base lubricating grease of the present invention adopts following processing steps: its component ratio is by weight percentage:

[0026] The present invention takes paraffin-based mineral oil: 150BS 47%, high base value synthetic calcium sulfonate: 33.5%, phase inversion accelerator: calcium carbonate 2%, alkylbenzenesulfonic acid 4%, glacial acetic acid: 0.8%, water: 5% %, calcium hydroxide: 4%, stearic acid: 3%, boric acid: 0.6% and di-tert-butyl-p-cresol: 0.1% are the components of the complex calcium sulfonate base grease of the present invention.

[0027] Test conditions: self-made small test saponification kettle, open, oil bath heating, volume 8L, normal pressure, speed 60 rpm. Add high base value synthetic calcium sulfonate with a base value of 415mgKOH / g to 150BS paraffin-based mineral oil, heat up to 53°C, add calcium carbonate, dodecylbenzenesulfonic acid, glacial acetic acid and water in sequence, and kee...

Embodiment 3

[0029] The production method of composite calcium sulfonate base lubricating grease of the present invention adopts following processing steps: its component ratio is by weight percentage:

[0030] The present invention takes paraffin-based mineral oil: 150BS 26%, polyalphaolefin oil: PAO-8 26%, high alkali value synthetic calcium sulfonate: 32%, phase inversion accelerator: isopropanol 2.5%, alkylbenzene sulfonic acid 3%, glacial acetic acid: 0.6%, water: 4%, calcium hydroxide: 3.3%, lauryl hydroxystearic acid: 2%, boric acid: 0.5%, dialkyl diphenylamine: 0.1% are the compound sulfonic acid of the present invention Component of calcium-based grease.

[0031] Test conditions: self-made small test saponification kettle, open, oil bath heating, volume 8L, normal pressure, speed 60 rpm. Mix synthetic calcium sulfonate with a high base value of 413mgKOH / g, 150BS paraffin-based mineral oil and PAO-8 polyalphaolefin oil, and heat while stirring until the temperature rises to 65°C. ...

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Abstract

The invention relates to calcium sulfonate complex grease and a manufacture method thereof, in particular to grease producing the thickening agent by synthetic reaction with super-high base value. At first, the lubricating base oil and the calcium sulfonate are added into an opening reaction kettle to be stirred, the phase inversion promoter, the glacial acetic acid and the water are added into the kettle to boost the temperature to make the insulating reaction until the materials are thickened, then the calcium hydroxide, the aliphatic acid and the boric acid are added into make an insulating reaction, a temperature rise, an insulating dehydration and a refining in turn, then the materials are moved into an intermediate kettle, the antioxidant is added to disperse and homogenize, and the finished product is produced after the filtering. The invention has excellent anti-spray performance, excellent high temperature performance, good extreme pressure anti-abrasion performance, prominent anti-shear performance, good pumping performance, anti-rust performance and water adding shear stability; has apparent phase inversion effect and good product performance, decreases the grease exchange times under the same working condition and increases the service life of the equipment, which is proved by the trial applications of a plurality of appliance manufacture enterprises, steel works, paper mills and so on.

Description

technical field [0001] The invention relates to a composite calcium sulfonate-based lubricating grease and a production method thereof, in particular to a lubricating grease that generates a thickener through a synthesis reaction with an ultra-high alkali value. Background technique [0002] The development of complex calcium sulfonate-based grease has mainly gone through three processes. In 1950, Sproule et al. found that calcium sulfonate as a thickener could be used to make grease, and using it together with fatty acid calcium soap could increase the dropping point of the grease, but the thickening ability of calcium sulfonate-based grease at this time Very small; in the 1960s, people found a way to convert Newtonian calcium sulfonate into non-Newtonian calcium sulfonate with thixotropic properties, and at the same time, a breakthrough was made in the high alkalinization technology of calcium sulfonate. Calcium-based grease has been outstanding in high temperature resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04
Inventor 任海栋杨晓钧
Owner 无锡中石油润滑脂有限责任公司
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