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Gear lubricant composition
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A kind of lubricant composition, the technology of the composition, applied in the direction of lubricating composition, additive, base material, etc., can solve the problem of no disclosure, etc., and achieve the effect of improving oxidation stability
Active Publication Date: 2020-06-16
TOTAL MARKETING SERVICES SA
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Therefore, this document does not disclose hydrocarbon oils comprising at least 90% by weight of isoparaffins
Method used
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[0225] Preparation of lubricant composition:
[0226] Lubricant compositions for use in the present invention may be prepared by any method known to those skilled in the art for formulating lubricant compositions, for example, by simply mixing the ingredients, preferably at ambient temperature.
[0227] In another embodiment, the hydrocarbon oil is preheated prior to mixing with the additive.
[0228] Use of the lubricant composition:
[0229] The compositions defined in the present invention are used, inter alia, as gear lubricants in the field of manufacturing and marine industry, and for gear equipment that may come into contact with the environment (water, air, etc.) or with individuals.
[0230] In one embodiment of the present invention, the lubricant composition is used in industrial gearing, especially industrial gearing in offshore installations. Among offshore installations, mention may be made of offshore wind turbines.
[0231] In one embodiment of the inven...
Embodiment 1
[0264] Embodiment 1: the preparation of hydrocarbon oil:
[0265] Hydrocarbon oils are prepared according to the method described in the present invention. Table 1 summarizes the physicochemical properties of hydrocarbon oils.
[0266] Table 1: Physicochemical properties of the hydrocarbon oil of the invention (Oil 1).
[0267]
[0268] The above characteristics are measured using the following standards and methods:
[0279] Several oils were tested for oxidation stability according to standard ASTM D2272 (2014 revision). This is a test of the Rotating Pressure VesselOxidation Test known by the acronym RPVOT.
[0280] Several lubricants were tested:
[0281] -Oil A: Ester type lubricating oil
[0282] -Oil B: naphthenic type lubricating oil
[0283] - Oil C: Mineral oil type commercial lubricants (fossil origin)
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Abstract
The invention relates to the use of a gear lubricant composition, said composition comprising: at least 97 % by weight, based on the total weight of the lubricant composition, of at least one hydrocarbon-based oil that comprises a weight content of isoparaffins ranging from 90 to 0 %, a weight content of normal paraffins ranging from 0 to 10 % and a carbon content of biological origin greater thanor equal to 90 % relative to the total weight of the oil, at least 0.01 % by weight, based on the total weight of the lubricant composition, of at least one additive selected among the anti-wear additives, extreme pressure additives, anti-corrosion additives, additives having metal-deactivating properties, anti-foam additives, anti-oxidant additives selected among the phenolic anti-oxidants, andthe mixtures thereof.
Description
technical field [0001] The present invention relates to the use of the composition as a gear lubricant. The lubricant composition is classified as biodegradable, does not cause bioaccumulation in organisms, and is non-toxic to the environment, more particularly the aquatic environment. [0002] The present invention also relates to gear lubricant compositions. Background technique [0003] Since December 2013, US regulations have been revised, notably requiring all vessels sailing in US waters to use EAL products (Environmentally Acceptable Lubricants), and in Europe, since 1992, ecolabels allow the use of Identify products that value the environment. The ingredients of these products can be included in the LuSC list (Lubricant Substance Classification), especially to meet the strict requirements of biodegradability, bioaccumulation and aquatic toxicity. Ecolabel lubricants are considered lubricants that comply with the EAL Environmental Specification for Lubricants. [...
Claims
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