WO2010066200A1 - 全甲醇发动机润滑油 - Google Patents

全甲醇发动机润滑油 Download PDF

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Publication number
WO2010066200A1
WO2010066200A1 PCT/CN2009/075457 CN2009075457W WO2010066200A1 WO 2010066200 A1 WO2010066200 A1 WO 2010066200A1 CN 2009075457 W CN2009075457 W CN 2009075457W WO 2010066200 A1 WO2010066200 A1 WO 2010066200A1
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WIPO (PCT)
Prior art keywords
lubricating oil
engine lubricating
methanol engine
methanol
salicylate
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PCT/CN2009/075457
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English (en)
French (fr)
Inventor
金先扬
向晖
宋金环
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上海华普汽车有限公司
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Publication of WO2010066200A1 publication Critical patent/WO2010066200A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
    • C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/26—Overbased carboxylic acid salts
    • C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/28—Amides; Imides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/251—Alcohol fueled engines

Definitions

  • the present invention relates to a lubricating oil, and more particularly to an all-methanol engine lubricating oil. Background technique
  • Methanol has strong hygroscopicity, which will dilute the lubricating oil and reduce its lubricating performance
  • the present invention is directed to the drawbacks of most current engine oils that are not suitable for use on all-methanol engines, and provides an all-methanol engine oil suitable for use on engines that burn pure methanol.
  • An all-methanol engine lubricating oil comprising mineral oil, a polyolefin and an additive, the additive being a high base salicylate, a succinimide, a zinc dimercapto dithiophosphate and an auxiliary preservative.
  • the component comprises 85 to 94 W t% mineral oil, 1 ⁇ 7wt% polyolefin and 5 ⁇ 14%% additive, the additive is high base salicylate, succinimide, zinc dimercapto dithiophosphate and auxiliary preservative.
  • the all-methanol engine lubricating oil is an organic amine in an amount of from 0.5 to 1.2% by weight based on the total methanol engine lubricating oil.
  • the all-methanol engine lubricating oil may be dinonyldiphenylamine or N-phenyl- ⁇ -naphthylamine.
  • the above-mentioned all-methanol engine lubricating oil has a base number of from 300 to 400 mg KOH/g. If the base value of the salicylate is less than 300 mgKOH/g, the total base number of the formulated methanol engine lubricating oil is small, and the acid neutralization ability is decreased; while the salicylate base number is more than 400 mgKOH/g, Causes carbon deposits to increase.
  • the high-methanol engine lubricating oil is calcium salicylate or magnesium salicylate, and the content is 1.0 to 5.0% by weight of the total methanol engine lubricating oil.
  • the above-mentioned all-methanol engine lubricating oil may be a mineral oil refined by solvent purification or hydrogenation, and the content is 85 to 94% by weight of the total methanol engine lubricating oil.
  • the above-mentioned all-methanol engine lubricating oil may be PAO 4 (ie, 4-polyalphaolefin) or cerium 6 (ie, 6-polyalphaolefin), and the content is 1.0 to 7.0 of the total methanol engine lubricating oil. Wt %.
  • the present invention has the following advantages:
  • the all-methanol engine lubricating oil of the invention has excellent anti-wear performance and anti-corrosion performance, and has the characteristics of preventing lubricating oil stratification.
  • the lubricating oil of the present invention has outstanding anti-wear performance, anti-corrosion performance and ability to prevent lubricating oil stratification as compared with general lubricating oil, and can meet the lubrication requirements of an engine for burning M100 methanol.
  • M100 methanol is pure methanol, which is the most effective when used on M100 methanol engines.
  • Solvent refined mineral oil (produced by Dalian Petrochemical Company)
  • the solvent was refined to 1700 g of mineral oil, 80 g of PA06, 70 g of magnesium salicylate having a base number of 400 mg KOH/g, 110 g of succinimide, 24 g of zinc dimercapto dithiophosphate, and 10 g of dinonyldiphenylamine.
  • the above components were stirred at a constant temperature of 50 ° C for 2 hours to be a full methanol engine lubricating oil.
  • the all-methanol engine lubricating oil prepared in this example was tested for abrasion resistance and corrosion resistance by the following method.
  • the four-ball wear test is a method for testing the friction and wear properties of lubricating oil.
  • the corresponding standard is
  • the requirements of the four-ball machine method for the diameter of the wear scar shall not be greater than 5% of the value on the corresponding compensation line.
  • the so-called compensation line is defined as the presence of lubricant without jamming. Under the condition, a bright round spot-like wear scar is generated on the following three balls, and a line drawn in the double logarithmic graph is called a compensation line by the average wear diameter of the lower ball.
  • the results of the four-ball machine method show that the diameter of the wear scar of the present embodiment is 0.45 mm, and the diameter of the wear of the general lubricating oil is about 0.5 mm. It can be seen that the all-methanol engine lubricating oil of this embodiment has good wear resistance.
  • the four-ball wear test of the present invention was carried out for an M100 methanol engine.
  • Corrosion testing is the possibility of determining the corrosion of a metal at a certain temperature. Immerse a polished piece of copper in a quantity of sample and heat it to the specified temperature for a certain period of time as required by the product standard. At the end of the test period, the copper sheets are removed and compared to the corrosion standard swatches after washing to determine the corrosion level.
  • the grades 1, 2, 3, and 4 the higher the number of grades, the deeper the discoloration, the more serious the corrosion; each grade is divided into a, b, c, d, etc. according to the depth of discoloration.
  • test results of the anti-corrosion performance of the all-methanol engine lubricating oil provided in this embodiment are lb, and the test result of the ordinary SJ 15W-40 engine oil is 2a, indicating that the anti-corrosion performance of the all-methanol engine lubricating oil of the present invention is superior to that of ordinary engine oil.
  • the solvent refined mineral oil was used as the base oil, PA06, and the high base value magnesium salicylate with a base value of 300 mgKOH/g as the high base salicylic acid salt, succinimide, and dimercapto disulfide.
  • Zinc phosphate and dinonyldiphenylamine are used as organic amines.
  • the total weight is 2Kg.
  • the above components were stirred at a constant temperature of 50 ° C for 2 hours to be a full methanol engine lubricating oil.
  • the all-methanol engine lubricating oil prepared in this example was tested for abrasion resistance and corrosion resistance according to the method of Example 1. The test results are shown in Tables 1 and 2.
  • weighed hydrorefined mineral oil as base oil, PA04, high base value magnesium salicylate with base value of 310 mgKOH/g as high base salicylic acid salt, succinimide, dimercapto Zinc thiophosphate and dinonyldiphenylamine are used as organic amines.
  • the total weight is 2Kg.
  • the above components were stirred at a constant temperature of 50 ° C for 2 hours to be a full methanol engine lubricating oil.
  • the all-methanol engine lubricating oil prepared in the present example was tested for abrasion resistance and corrosion resistance according to the method of Example 1. The test results are shown in Tables 1 and 2.
  • the solvent refined mineral oil is used as the base oil, PA04, and the high base value calcium salicylate having a base value of 300 mgKOH/g is a high base salicylic acid salt, a succinimide, a dimercapto disulfide.
  • Zinc phosphate, N-phenyl- ⁇ -naphthylamine is used as the organic amine.
  • the total weight is 2Kg.
  • the above components were stirred at a constant temperature of 50 ° C for 2 hours to be a full methanol engine lubricating oil.
  • the all-methanol engine lubricating oil prepared in this example was tested for abrasion resistance and corrosion resistance according to the method of Example 1. The test results are shown in Tables 1 and 2.
  • the solvent refined mineral oil is used as the base oil, PA04, and the high base value calcium salicylate with a base value of 310 mgKOH/g is a high base salicylic acid salt, succinimide, dimercapto disulfide.
  • Zinc phosphate, N-phenyl- ⁇ -naphthylamine is used as the organic amine.
  • the total weight is 2Kg.
  • the above components were stirred at a constant temperature of 50 ° C for 2 hours to be a full methanol engine lubricating oil.
  • the all-methanol engine lubricating oil prepared in this example was tested for abrasion resistance and corrosion resistance according to the method of Example 1. The test results are shown in Tables 1 and 2.
  • the solvent refined mineral oil is used as the base oil, PA06, and the high base value calcium salicylate with a base value of 320 mgKOH/g is a high base salicylic acid salt, succinimide, dimercapto disulfide. Zinc phosphate and dinonyldiphenylamine are used as organic amines. The total weight is 2Kg.
  • the above components were stirred at a constant temperature of 50 ° C for 2 hours to be a full methanol engine lubricating oil.
  • the all-methanol engine lubricating oil prepared in this example was tested for abrasion resistance and corrosion resistance according to the method of Example 1. The test results are shown in Tables 1 and 2.
  • Embodiments 1 to 6 of the present invention can be compatible with 1% methanol, and the ordinary SJ 15W-40 engine oil is incompatible with methanol, indicating that the all-methanol engine of the present invention is lubricated.
  • the oil also has good resistance to delamination.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Description

说 明 书 全甲醇发动机润滑油 技术领域
本发明涉及一种润滑油， 尤其是指一种全甲醇发动机润滑油。 背景技术
目前， 环境污染和能源紧张日益加剧， 促进了汽车代用燃料的研究和应用。 甲醇作为一种新型的车用燃料， 已经越来越被众多汽车供应商所接受和认可。 与传统燃料相比， 甲醇作为一种替代燃料具有来源广、 排放低等优点。
但是， 如果将汽油发动机所用的润滑油直接用在甲醇汽车上， 会造成如下 的危害：
1 ) 甲醇吸湿性强， 会稀释润滑油， 使其润滑性能下降；
2 )被稀释的机油导致活塞与气缸壁之间的磨损加大， 也加速了其他零部件 的磨损；
3 )甲醇燃烧会产生酸性物质，会造成发动机部件的腐蚀， 导致发动机故障。 发明内容
本发明主要针对目前大多数发动机润滑油不适合在全甲醇发动机上使用的 缺陷， 提供了一种适合在燃烧纯甲醇的发动机上使用的全甲醇发动机润滑油。
本发明的上述技术问题主要是通过下述技术方案得以解决的：
一种全甲醇发动机润滑油， 其组分包括矿物油、 聚烯烃和添加剂， 添加剂 为高碱值水杨酸盐、 丁二酰亚胺、 二垸基二硫代磷酸锌和辅助防腐剂。
上述全甲醇发动机润滑油， 作为优选，所述的组分包括 85〜94Wt%矿物油、 l〜7wt%聚烯烃和 5〜14^%添加剂， 添加剂为高碱值水杨酸盐、 丁二酰亚胺、 二垸基二硫代磷酸锌和辅助防腐剂。
上述全甲醇发动机润滑油， 作为优选， 所述的辅助防腐剂为有机胺， 含量 占全甲醇发动机润滑油的 0.5〜1.2wt%。
上述全甲醇发动机润滑油， 作为优选， 所述的有机胺可以是二垸基二苯胺、 N-苯基 -α-萘胺。
上述全甲醇发动机润滑油， 作为优选， 所述的高碱值水杨酸盐是指碱值为 300-400mg KOH/g。若水杨酸盐的碱值小于 300mgKOH/g， 配制的甲醇发动机润 滑油的总碱值就偏小， 酸中和能力就会下降； 而水杨酸盐的碱值大于 400 mgKOH/g, 则会造成积碳加重。
上述全甲醇发动机润滑油， 作为优选， 所述的高碱值水杨酸盐为水杨酸钙 或水杨酸镁， 含量占全甲醇发动机润滑油的 1.0〜5.0wt%。
上述全甲醇发动机润滑油， 作为优选， 所述的矿物油可以是溶剂精制或加 氢精制的矿物油， 含量占全甲醇发动机润滑油的 85〜94wt%。
上述全甲醇发动机润滑油， 作为优选， 所述的聚烯烃可以是 PAO 4 (即 4- 聚 α烯烃）或 ΡΑΟ 6 (即 6-聚 α烯烃），含量占全甲醇发动机润滑油的 1.0〜7.0wt %。
与现有技术相比， 本发明具有以下优点：
本发明的全甲醇发动机润滑油具有优异的抗磨性能和防腐性能， 同时具备 防止润滑油分层等特点。
本发明的润滑油与一般润滑油相比， 具有突出的抗磨性能、 防腐性能及防 止润滑油分层的能力， 能够满足燃烧 M100甲醇的发动机的润滑需求。 M100甲 醇为纯甲醇， 即此润滑油在 M100甲醇的发动机上使用时， 效果最为突出。
具体实施方式 下面通过实施例， 对本发明的技术方案作进一步具体的说明。
在本发明中， 若非特指， 所有的份、 百分比均为重量单位， 所有的设备和 原料等均可从市场购得或是本行业常用的。
主要试剂说明：
溶剂精制矿物油： （大连石化公司生产）
PA06 (芬兰富腾公司生产）
加氢精制矿物油 （韩国双龙生产）
PA04 (芬兰富腾公司生产）
实施例 1:
称取溶剂精制矿物油 1700g， PA06 80g， 碱值为 400mgKOH/g的水杨酸镁 70g， 丁二酰亚胺 110g， 二垸基二硫代磷酸锌 24g， 二垸基二苯胺 10g。
将上述的组分在 50°C恒温条件下， 搅拌 2小时即为全甲醇发动机润滑油。 将本实施例制得的全甲醇发动机润滑油按下述方法做抗磨性能和抗腐蚀性 能检测。
1.1抗磨性能试验
四球磨损试验是一种测试润滑油摩擦磨损性能的方法， 相应的标准是
SH/T0189 润滑油抗磨损性能测定法 （四球机法）， 该标准系参照采用 ASTM D4172润滑液抗磨性能试验方法 （四球机法） 而制订的。
四球机法对磨痕直径的要求： 在最大无卡咬负荷下测得的磨痕直径不得大 于相应补偿线上数值的 5%， 所谓补偿线的定义是在存在润滑剂而又不发生卡咬 条件下， 在下面 3 个球上产生光亮的圆斑状磨痕， 由下球的平均磨痕直径对所 加的负荷， 在双对数坐标图中作出的一条直线称为补偿线。 该标准规定： 钢球 必须符合 GB308II 级轴承钢球， 直径为 12.7mm， 材料 GCrl5 ; 转速为 1200r/min±60r/min， 负荷 147N或 392N ( 15kgf或 40kgf)， 要避免振动和冲击； 温度为 75°C±2°C ; 运转时间为 60min±lmin。 试验完毕， 测量 3个下球的磨痕直 径， 测量精度为 0.01mm。
四球机法结果显示， 本实施例磨痕直径测定结果为 0.45mm， 而一般润滑油 的磨痕直径为 0.5mm左右。 比较可见， 本实施例的全甲醇发动机润滑油的抗磨 性能良好。
本发明的四球磨损试验是针对 M100甲醇的发动机进行的。
1.2腐蚀性能试验
腐蚀试验是测定油品在一定温度下对金属产生腐蚀的可能性。 把一块磨光 好的铜片浸没在一定量的试样中， 并按产品标准要求加热到指定的温度， 保持 一定的时间。 待试验周期结束时， 取出铜片， 经洗涤后与腐蚀标准色板进行比 较， 确定腐蚀级别。 分 1、 2、 3、 4级， 级数越高， 变色越深， 腐蚀越严重； 每 级又根据变色的深浅分为 a,b,c,d等。 本实施例提供的全甲醇发动机润滑油其抗 腐蚀性能测定结果为 lb， 而普通 SJ 15W-40机油的测试结果为 2a， 表明本发明 的全甲醇发动机润滑油的防腐性能优于普通机油。
实施例 2:
按照表 1的含量称取溶剂精制矿物油作为基础油、 PA06、碱值 300mgKOH/g 的高碱值水杨酸镁作为高碱值水杨酸盐、 丁二酰亚胺、 二垸基二硫代磷酸锌、 二垸基二苯胺作为有机胺。 总重量为 2Kg。
将上述的组分在 50°C恒温条件下， 搅拌 2小时即为全甲醇发动机润滑油。 将本实施例制得的全甲醇发动机润滑油按实施例 1 的方法做抗磨性能和抗 腐蚀性能检测。 检测结果见表 1和表 2。
实施例 3:
按照表 1的含量称取加氢精制矿物油作为基础油、 PA04、碱值 310mgKOH/g 的高碱值水杨酸镁作为高碱值水杨酸盐、 丁二酰亚胺、 二垸基二硫代磷酸锌、 二垸基二苯胺作为有机胺。 总重量为 2Kg。
将上述的组分在 50°C恒温条件下， 搅拌 2小时即为全甲醇发动机润滑油。 将本实施例制得的全甲醇发动机润滑油按实施例 1 的方法做抗磨性能和抗 腐蚀性能检测。 检测结果见表 1和表 2。
实施例 4:
按照表 1的含量称取溶剂精制矿物油作为基础油、 PA04、碱值 300mgKOH/g 的高碱值水杨酸钙为高碱值水杨酸盐、 丁二酰亚胺、 二垸基二硫代磷酸锌、 N- 苯基 -α-萘胺作为有机胺。 总重量为 2Kg。
将上述的组分在 50°C恒温条件下， 搅拌 2小时即为全甲醇发动机润滑油。 将本实施例制得的全甲醇发动机润滑油按实施例 1 的方法做抗磨性能和抗 腐蚀性能检测。 检测结果见表 1和表 2。
实施例 5:
按照表 1的含量称取溶剂精制矿物油作为基础油、 PA04、碱值 310mgKOH/g 的高碱值水杨酸钙为高碱值水杨酸盐、 丁二酰亚胺、 二垸基二硫代磷酸锌、 N- 苯基 -α-萘胺作为有机胺。 总重量为 2Kg。
将上述的组分在 50°C恒温条件下， 搅拌 2小时即为全甲醇发动机润滑油。 将本实施例制得的全甲醇发动机润滑油按实施例 1 的方法做抗磨性能和抗 腐蚀性能检测。 检测结果见表 1和表 2。
实施例 6:
按照表 1的含量称取溶剂精制矿物油作为基础油、 PA06、碱值 320mgKOH/g 的高碱值水杨酸钙为高碱值水杨酸盐、 丁二酰亚胺、 二垸基二硫代磷酸锌、 二 垸基二苯胺作为有机胺。 总重量为 2Kg。
将上述的组分在 50°C恒温条件下， 搅拌 2小时即为全甲醇发动机润滑油。 将本实施例制得的全甲醇发动机润滑油按实施例 1 的方法做抗磨性能和抗 腐蚀性能检测。 检测结果见表 1和表 2。
表 1 实施例 2至 6的组分含量及抗磨性能检测结果
Figure imgf000007_0001
表 2 实施例 2-6及普通机油的防腐性能试验
Figure imgf000007_0002
此外， 经试验发现， 本发明实施例 1至 6提供的全甲醇发动机润滑油可与 1%甲醇相溶， 而普通的 SJ 15W-40机油与甲醇不相溶， 说明本发明的全甲醇发 动机润滑油还具有良好的抗分层能力。 本发明中所描述的具体实施例仅仅是对本发明精神作举例说明。 尽管对本 发明已作出了详细的说明并引证了一些具体实例， 但是对本领域熟练技术人员 来说， 只要不离开本发明的精神和范围， 可以对所描述的具体实施例做各种各 样的修改或补充或采用类似的方式替代， 但并不会偏离本发明的精神或者超越 所附权利要求书所定义的范围， 本发明中出现的术语用于对本发明技术方案的 阐述和理解， 并不能构成对本发明的限制。

Claims

权 利 要 求 书
1、 一种全甲醇发动机润滑油， 其组分包括矿物油、 聚烯烃和添加剂， 添加 剂为高碱值水杨酸盐、 丁二酰亚胺、 二垸基二硫代磷酸锌和辅助防腐剂。
2、 根据权利要求 1所述的全甲醇发动机润滑油， 其特征在于， 所述的组分 包括 85〜94\¥1%矿物油、 1〜7\¥1%聚烯烃和 5〜14\¥1%添加剂， 添加剂为高碱 值水杨酸盐、 丁二酰亚胺、 二垸基二硫代磷酸锌和辅助防腐剂。
3、 根据权利要求 1或 2所述的全甲醇发动机润滑油， 其特征在于， 所述的 辅助防腐剂为有机胺。
4、 根据权利要求 3所述的全甲醇发动机润滑油， 其特征在于， 所述的有机 胺为二垸基二苯胺、 N-苯基 -α-萘胺。
5、 根据权利要求 1或 2所述的全甲醇发动机润滑油， 其特征在于， 所述的 高碱值水杨酸盐是指碱值为 300-400mg KOH/g。
6、 根据权利要求 1或 2所述的全甲醇发动机润滑油， 其特征在于， 所述的 高碱值水杨酸盐为水杨酸钙或水杨酸镁。
7、 根据权利要求 1或 2所述的全甲醇发动机润滑油， 其特征在于， 所述的 矿物油为溶剂精制或加氢精制矿物油。
8、 根据权利要求 1或 2所述的全甲醇发动机润滑油， 其特征在于， 所述的 聚烯烃为 4-聚 a烯烃或 6-聚 a烯烃。
1
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