Lubricating grease composition and preparation method thereof
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A lubricating grease composition, the technology of the composition, applied in the direction of lubricating composition, petroleum industry, thickener, etc., to achieve the effect of reducing carbon emission and avoiding corrosion
Inactive Publication Date: 2013-09-04
闻建勋
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[0012] It can be seen that no matter dry method or wet method is used to produce bentonite grease, there are certain limitations. For example, the defect of wet method mainly involves the removal of a large amount of water , not only increases energy consumption, but also increases the treatment of waste water and waste gas; while the wet method avoids the problem of dealing with a large amount of water, but it also brings problems such as light solvent volatilization and rust
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Embodiment 1
[0046] Paraffinic mineral oil (6 mm 2 / s) 84%
[0047] Composite additive 1%
[0048] Add 30% base oil to the fat-making kettle, then add all the bentonite, then add white carbon black (or auxiliary dispersant) according to the calculated amount, heat to 50°C under full stirring, the reactant gradually thickens, and gradually add The remaining base oil is added with additives, and the grease made is ground three times to obtain a grease product. The information of the raw materials used in this embodiment is shown in Table 2.
[0049] Example 2
[0050]Bentonite (JF-38) 8%
Embodiment 2
[0052] Naphthenic mineral oil (10 mm 2 / s) 82.5%
[0053] Compound additive 1.5%
[0054] Add 30% base oil to the fat-making kettle, then add all the bentonite, then add white carbon black (or auxiliary dispersant) according to the calculated amount, heat to 55°C under full stirring, the reactant gradually thickens, and gradually add The remaining base oil is added with additives, and the grease made is ground three times to obtain a grease product. The information of the raw materials used in this embodiment is shown in Table 2.
[0055] Example 3
[0056] Bentonite (BT-838A) 10%
Embodiment 3
[0058] Bright oil (30mm 2 / s) 83%
[0059] Composite additives 3%
[0060] Add 30% base oil to the fat-making kettle, then add all the bentonite, then add white carbon black (or auxiliary dispersant) according to the calculated amount, heat to 70°C under full stirring, the reactant gradually thickens, and gradually add The remaining base oil is added with additives, and the grease made is ground three times to obtain a grease product. The information of the raw materials used in this embodiment is shown in Table 2.
[0061] Example 4
[0062] Bentonite (BP-500) 15%
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Abstract
The invention relates to a lubricating agent, in particular to lubricating grease and a preparation method thereof. The lubricating grease comprises a lubricating grease thickening agent and base oil, wherein the lubricating grease thickening agent accounts for 5-30% of the weight of the composition; and the base oil accounts for 70-95% of the weight of the composition; and the lubricating grease thickening agent comprises bentonite and white carbon black, and the weight ratio of the bentonite to the white carbon black is 10:1-1:4. The preparation method comprises the steps as follows: 30% of the base oil, all the bentonite and all the white carbon black are added into a grease preparation kettle; the mixture is heated to 40-100 DEG C under the condition of full stirring; residual amount of the base oil is added gradually after a reactant becomes thick gradually; an additive is added, and grinding is performed for three times, so that a lubricating grease sample is obtained. According to the lubricating grease composition and the preparation method thereof, the lubricating grease is prepared with a method of mixing silica gel and bentonite, so that the usage of a volatile dispersion auxiliary during preparation of bentonite in the previous is omitted; carbon emission caused by preparation of the lubricating grease and even the environmental pollution problems are reduced; and at the same time, the problem of corrosion caused by the dispersion assisting agent is avoided. The lubricating grease has a good thickening capacity.
Description
technical field [0001] The invention relates to a lubricant, in particular to a lubricating grease and a preparation method thereof. Background technique [0002] Bentonite is a kind of clay, and its main component is montmorillonite, which belongs to the layered structure of hydrous aluminosilicate minerals. Due to its own cation exchange characteristics, it can be made into different series of organic bentonite according to the required purposes. If the organic cation has an alkyl group with more than 10 carbons, the obtained organic bentonite will have the property of swelling and forming a gel in some organic liquids. Therefore, organic bentonite is often used as a thickener for grease and an auxiliary agent for coatings. Anti-settling agent and thickener for paint, anti-settling agent for oil drilling, etc. Usually, the method of preparing organoclay is to first select sodium bentonite, or modify bentonite to sodium bentonite, then add quaternary ammonium salt, and...
Claims
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Application Information
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