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Method for preparing lubricant composition by using waste oil and degradable micro-lubricating oil prepared by using the composition
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A technology of lubricant composition and waste grease, applied in the field of lubrication, can solve the problem of high cost and achieve the effects of reducing harm, simple operation and low pollution
Inactive Publication Date: 2015-08-12
SHAANXI JINZHAO AVIATION TECH CO LTD
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Although its biodegradability is good, it can be applied to the processing of light alloys in the field of minimal lubrication, but the cost is high
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Embodiment 1
[0039] Preparation of 1# degradable micro-lubricating oil
[0040] Take early fried dough sticks and filter to remove impurities, weigh 885g (calculated as 1mol based on triglyceride) and put it in the reactor, weigh 92g (2mol) of ethanol, add 1.77g of sodium hydroxide into the reactor, and put it into the reactor at 70°C Sealed and stirred for 90 minutes, added 71g (0.5mol) of phosphorus pentoxide and continued to stir for 60 minutes to fully react, and naturally cooled to obtain 1# degradable trace lubricating oil.
Embodiment 2
[0042] Preparation of 2# degradable micro-lubricating oil
[0043] Put the pig fat outside (20-30°C) for 2 days. When there is already an odor, put it in a pot to heat and fry it, filter out impurities, weigh 885g (calculated as 1mol based on triglyceride) and set In the reactor, weigh 88g (1mol) of n-pentanol, add 4.425g of sodium ethoxide into the reactor, seal and stir at 90°C for 60 minutes, add 142g (1mol) of phosphorus pentoxide and continue to stir for 90 minutes to fully react , cooled naturally to obtain a lubricant composition.
[0044] Add 200g soybean oil, 200g methyl palmitate, 100g dioctyl sebacate, 100g pentaerythritol tetralaurate, 100g polyalpha-olefin (PAO4) in the above-mentioned lubricating oil composition and fully stir for 20 minutes , to produce 2# degradable micro-lubricating oil.
Embodiment 3
[0046] Preparation of 3# degradable micro-lubricating oil
[0047] Add 1000 grams of Arowana blended oil to 2000 grams of water, 100 grams of fish, 200 grams of tofu, 200 grams of Chinese cabbage, 20 grams of pepper, 10 grams of Zanthoxylum bungeanum, put it in a pot and cook for 2 hours, filter to remove impurities, and separate oil and water with BY-1 Remove moisture by machine, weigh 885g (calculated as 1mol based on triglyceride) and put it in the reactor, weigh 90g (1.5mol) propanol, add 3g potassium methylate into the reactor, seal and stir for 75 minutes at 80°C , add 97g (1mol) of phosphoric acid and continue to stir to make it fully react for 80 minutes, and cool naturally to obtain a lubricant composition.
[0048] Add 500 g of trimethylolpropane oleate and 50 g of tributyl borate to the above lubricant composition, and stir well until the solution is completely transparent to obtain 3# degradable trace lubricating oil.
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Abstract
The invention provides a method for preparing a lubricant composition by using waste grease. The method is characterized by comprising the following steps: S1, adding waste grease, low carbon alcohol and a catalyst into a reactor, and carrying out reaction for 60-90 minutes at 70-90 DEG C; and S2, adding phosphorus pentoxide into the reactor to continuously stir and carrying out reaction for 60-90 minutes to obtain the lubricant composition, wherein the molar ratio of waste grease to low carbon alcohol to the catalyst is 1:(1-2):(0.5-1). According to the method, waste grease resources are utilized to generate good benefits, and the method is low in cost, simple to operate and easy for industrial production. The product further has good lubricity and extreme pressure antiwear property, and a small quantity of micro-lubricating oil can meet the high-end demand of metal processing, so that damages to the environment and workers are reduced. The micro-lubricating oil can be biodegraded, so that the environmental pollution is minimized.
Description
technical field [0001] The invention relates to the technical field of lubrication, in particular to a method for preparing a lubricant composition by using waste grease and a degradable micro-quantity lubricating oil prepared by using the composition. Background technique [0002] Discarded animal and plant fats and oils, including animal fats from slaughterhouses, waste kitchen fats, and gutter oils, are inedible because they often contain some oil-soluble toxic substances after being polluted or deteriorated. Turning it into edible oil is an illegal and criminal act severely cracked down by the relevant state departments, but these waste oils are a natural energy resource that is less harmful to the environment than oil. In today's era of oil energy shortage, it should be turned into waste. Bao, used in non-edible industrial fields. [0003] Cutting oils, coolants, emulsions and other lubricants used in traditional metal processing lubrication and cooling are used in lar...
Claims
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Application Information
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