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A kind of composite calcium sulfonate lubricating grease and preparation method thereof

A compound calcium sulfonate lubricating grease and technology of compound calcium sulfonate, applied in the field of lubricating grease, can solve problems such as easy hardening of the surface, easy precipitation of base oil, poor colloidal stability, etc. point effect

Active Publication Date: 2020-03-10
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned problems existing in the prior art, the present invention provides a preparation method of complex calcium sulfonate grease, and the complex calcium sulfonate grease produced by the method can effectively solve the problem of poor colloidal stability existing in existing greases. , long-term storage is easy to precipitate base oil, and the surface is easy to harden

Method used

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  • A kind of composite calcium sulfonate lubricating grease and preparation method thereof
  • A kind of composite calcium sulfonate lubricating grease and preparation method thereof
  • A kind of composite calcium sulfonate lubricating grease and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0029] A kind of compound calcium sulfonate lubricating grease, comprises the composition of following parts by weight: 95 parts of mineral oils, 1.2 parts of T106D, 0.4 parts of glacial acetic acid, 1.3 parts of lauryl hydroxystearic acid, 0.2 parts of boric acid, 0.5 part of sebacic acid and 0.5 parts of LiOH solution.

[0030] Wherein, the weight ratio of LiOH to water in the LiOH solution is 1:3.

[0031] The preparation method of above-mentioned composite calcium sulfonate lubricating grease comprises the following steps:

[0032] (1) Take 60 parts of mineral oil, add T106D to it, stir and heat up to 75°C, then add glacial acetic acid, and stir evenly;

[0033] (2) Add lauryl hydroxystearic acid to the resultant of step (1) and stir until dissolved, heat up to 95°C, then add boric acid and stir until dissolved, continue to heat up to 115°C, then add sebacic acid and stir until dissolved, then Cool down to 105°C;

[0034] (3) LiOH solution was added dropwise to the resu...

Embodiment 2

[0039] A kind of composite calcium sulfonate lubricating grease, comprises the composition of following parts by weight: 75 parts of synthetic oils, 23.4 parts of T106D, 5 parts of glacial acetic acid, 12.5 parts of lauryl hydroxystearic acid, 2.6 parts of boric acid, 8.5 parts of adipic acid and 3.5 parts of LiOH solution.

[0040] Wherein, the weight ratio of LiOH to water in the LiOH solution is 1:3.

[0041] The preparation method of above-mentioned composite calcium sulfonate lubricating grease comprises the following steps:

[0042] (1) Take 60 parts of synthetic oil, add T106D to it, stir and heat up to 85°C, then add glacial acetic acid, and stir evenly;

[0043] (2) Add lauryl hydroxystearic acid to the resultant of step (1) and stir until dissolved, heat up to 105°C, then add boric acid and stir until dissolved, continue to heat up to 135°C, then add adipic acid and stir until dissolved, then Cool down to 125°C;

[0044] (3) LiOH solution was added dropwise to the...

Embodiment 3

[0049]A kind of composite calcium sulfonate lubricating grease, comprises the composition of following parts by weight: 86 parts of mineral oils, 1.8 parts of T106D, 0.4 parts of glacial acetic acid, 7.7 parts of lauryl hydroxystearic acid, 0.4 parts of boric acid, 1.9 parts of sebacic acid and 2.4 parts of LiOH solution.

[0050] Wherein, the weight ratio of LiOH to water in the LiOH solution is 1:3.

[0051] The preparation method of above-mentioned composite calcium sulfonate lubricating grease comprises the following steps:

[0052] (1) Take 51 parts of mineral oil, add T106D to it, stir and heat up to 80°C, then add glacial acetic acid, and stir evenly;

[0053] (2) Add lauryl hydroxystearic acid to the resultant of step (1) and stir until dissolved, heat up to 100°C, then add boric acid and stir until dissolved, continue to heat up to 125°C, then add sebacic acid and stir until dissolved, then Cool down to 115°C;

[0054] (3) LiOH solution was added dropwise to the re...

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Abstract

The invention provides a composite calcium sulfonate lubricating grease, which comprises the following ingredients in parts by weight: 75-95 parts of base oil, 1.2-23.4 parts of synthetic petroleum calcium sulfonate, 0.4-5 parts of glacial acetic acid, lauryl hydroxystearic acid 1.3 to 12.5 parts, 0.2 to 2.6 parts of boric acid, 0.5 to 8.5 parts of dibasic acid and 0.5 to 3.5 parts of LiOH solution. The preparation process of the grease includes saponification, saponification dehydration, high temperature refining, cooling and homogenization. The complex calcium sulfonate lubricating grease produced by the method can effectively solve the problems of poor colloidal stability, long-term storage of base oil and easy hardening of the surface of existing lubricating greases.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and in particular relates to a compound calcium sulfonate lubricating grease and a preparation method thereof. Background technique [0002] In the hot continuous rolling mill of the hot rolling production line of the iron and steel plant, the roll bearing not only bears a large radial pressure and the huge impact force caused by the strip steel on the bearing, but also the internal pressure it bears and the erosion of the high-pressure roll cooling water will cause the bearing to lubricate. The rapid loss of grease and the rapid formation of abrasive wear inside the bearing will cause damage to the bearing. If the damage is mild, it will be shut down for several hours for maintenance. If the damage is serious, the equipment may be scrapped, resulting in a huge loss of manpower, material resources and resources. Continuous rolling mill work roll bearings place very high performance dem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/06C10M159/24C10N30/06C10N30/08C10N50/10
CPCC10M159/24C10M169/06C10M2219/0466C10N2030/06C10N2030/08C10N2050/10
Inventor 樊小强任冠霖李文李浩朱旻昊
Owner SOUTHWEST JIAOTONG UNIV