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Inorganic grease composition and preparation method thereof

A lubricating grease composition and the technology of the composition are applied in the field of lubricating grease to achieve the effect of low raw material cost, wide application range and excellent anti-oxidation effect

Inactive Publication Date: 2018-04-20
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Using two components of modified bentonite and activated calcium carbonate as the thickener, by thickening a suitable high-viscosity base oil and compounding an appropriate amount of high-temperature antioxidant to prepare high-temperature and heavy-duty inorganic grease, there is no public report

Method used

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  • Inorganic grease composition and preparation method thereof
  • Inorganic grease composition and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Inorganic grease composition provided by the invention, each component and mass percentage are as follows:

[0028] (1) No. 1500 synthetic cylinder oil 67.5%

[0029] (2) Modified bentonite 15.0%;

[0030] (3) active calcium carbonate 12.0%;

[0031] (4) Methanol 4.0%;

[0032] (5) phenothiazine 1.5%;

[0033] Put 380g of No. 1500 synthetic cylinder oil into the kettle, raise the temperature to 95°C, add 150g of aminated bentonite and 120g of activated calcium carbonate, and stir for 10 minutes to disperse the materials. Add methanol 40g, keep the temperature and stir for 35min. Put the remaining base oil into the kettle and stir for 120min. At a temperature of 90°C, 15 g of phenothiazine was added. Stir evenly, you can get out of the kettle. Finally, the finished product is obtained after grinding 3 times with a three-roll mill. The properties of the grease obtained are shown in Table 1.

Embodiment 2

[0035] Inorganic grease composition provided by the invention, component and mass percent are as follows:

[0036] (1) No. 1500 synthetic cylinder oil 91.1%;

[0037] (2) Modified bentonite 5.0%

[0038] (3) Active calcium carbonate 3.0%;

[0039] (4) 0.5% ethanol;

[0040] (5) phenothiazine 0.4%;

[0041] Put 460g of No. 1500 synthetic cylinder oil into the kettle, raise the temperature to 60°C, add 50g of aminated bentonite and 30g of activated calcium carbonate, and stir for 5 minutes to disperse the materials. Add 5 g of ethanol, keep the temperature and stir for 25 min. Put the remaining base oil into the kettle and stir for 60 minutes. At a temperature of 80° C., 4 g of phenothiazine was added. Stir evenly, you can get out of the kettle. Finally, the finished product is obtained after grinding 3 times with a three-roll mill. The properties of the grease obtained are shown in Table 1.

Embodiment 3

[0043] Inorganic grease composition provided by the invention, component and mass percent are as follows:

[0044] (1) No. 1500 synthetic cylinder oil 69.5%;

[0045] (2) Modified bentonite 14.0%;

[0046] (3) Active calcium carbonate 11.5%;

[0047] (4) Acetone 3.8%;

[0048] (5) phenothiazine 1.2%;

[0049] Put No. 1500 synthetic cylinder oil into the kettle, raise the temperature to 70°C, add 140g of aminated bentonite and 115g of activated calcium carbonate, and stir for 8 minutes to disperse the materials. Add auxiliary dispersant, keep the temperature and stir for 30min. Put the remaining base oil into the kettle and stir for 80 minutes. At a temperature of 83°C, the phenothiazine was added. Stir evenly, you can get out of the kettle. Finally, the finished product is obtained after grinding 3 times with a three-roll mill. The properties of the grease obtained are shown in Table 1.

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Abstract

The invention relates to an inorganic grease composition and a preparation method thereof. According to the preparation method, modified bentonite and activated calcium carbonate are adopted as thickeners for preparation of the high-temperature-resistant inorganic grease composition, and the composition is prepared from, in percentages, 67.5-91.1% of synthetic cylinder oil, 5.0-15.0% of the modified bentonite, 3.0-12.0% of the activated calcium carbonate, 0.5-4.0% of a dispersion assisting agent and 0.4-1.5% of phenothiazine. The obtained product has excellent high temperature resistance, lubricity and oxidation stability, and can meet lubrication requirements of high-temperature heavy-load devices at a temperature range of -10 DEG C to 200 DEG C in metallurgy, ceramics, printing and dyeing, chemical engineering and other fields.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and in particular relates to an inorganic lubricating grease composition and a preparation method which use two components of modified bentonite and active calcium carbonate as a thickening agent and are suitable for high-temperature and heavy-duty occasions. Background technique [0002] At present, inorganic grease mainly includes bentonite grease, silicone grease and other types. Bentonite grease is made of modified bentonite treated with surfactants (quaternary ammonium cations, etc.), thickened mineral base oil or synthetic base oil with different viscosities, and is suitable for the lubrication of automobile chassis, wheel bearings and bearings in high temperature parts. Silicone grease is a grease made of surface modified silicone thickened methyl silicone oil or other types of base oil, mainly used for electrical insulation and vacuum sealing. Compared with organic greases suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/06C10N30/06C10N30/10C10N30/08
CPCC10M169/06C10M2201/0626C10M2201/1036C10M2201/145C10M2207/021C10M2207/022C10M2207/08C10M2213/003C10M2219/108C10N2030/06C10N2030/08C10N2030/10
Inventor 王先会王黎光刘坤张广辽
Owner CHINA PETROLEUM & CHEM CORP
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