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Environment-friendly trace lubricant and preparation method thereof

A micro-quantity lubricant and lubricant composition technology, applied in the field of lubrication, can solve the problems of environmentally unfriendly sulfur and chlorine-containing additives, affecting the health of operators, processing sites and environmental pollution, etc., and achieves remarkable environmental protection effects. Improved product stability and good lubricating performance

Active Publication Date: 2020-05-15
上海贝能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional metal cutting generally uses mineral oil / vegetable oil / cutting fluid for a large amount of shower lubrication and cooling. The amount of lubricant used is large, which not only wastes resources, but also causes huge pollution to the processing site and the environment, and also seriously affects the health of the operators. Healthy body
[0003] In order to solve these problems, some progress has been made in the recent research on micro-quantity lubrication technology at home and abroad. The micro-quantity lubrication technology has solved the problems of large amount of lubricant used and serious pollution. Excessive use of sulfur and chlorine-containing lubricants that are not friendly to the environment additive

Method used

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  • Environment-friendly trace lubricant and preparation method thereof
  • Environment-friendly trace lubricant and preparation method thereof
  • Environment-friendly trace lubricant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 304.42g (1mol) lactoic acid and 344.52g (2mol) capric acid into the reactor, add a catalyst (8g cation exchange resin), and react at a temperature of 220°C for 3 hours under nitrogen protection; Moisture is removed under reduced pressure; ie, a lubricant composition.

[0035] Weigh and weigh 400g of lubricant composition, 200g of sophorolipid, 100g of polysucrose caprate, 50g of sodium castor oil sulfonate, 50g of isostearyl alcohol, and 200g of deionized water, mix and stir at room temperature until translucent. A micro lubricant.

[0036] The preparation method of above-mentioned polysucrose decanoate:

[0037] Step 1: Add 342.3g (1mol) of sucrose, 139.28g (1.2mol) of maleic acid, 1033.56g (6mol) of n-decanoic acid, and 10g of catalyst (10% dilute sulfuric acid) into the reaction kettle, at a reaction temperature of 220°C React for 4 hours; after the reaction, depressurize and discharge the water, which is sucrose caprate;

[0038] Step 2. When the temperatur...

Embodiment 2

[0040] Weigh 304.42g (1mol) of lactoic acid and 300.48g (1.5mol) of lauric acid into the reactor, add the catalyst (1.8g of phosphotungstic acid), and react at a temperature of 180°C for 5 Hours; decompression to remove moisture; that is, a lubricant composition.

[0041] Weigh and weigh 300g of lubricant composition, 300g of sophorolipid, 200g of polysucrose laurate, 70g of sodium castor oil sulfonate, 80g of isostearyl alcohol, and 50g of deionized water, mix and stir at room temperature until translucent. A micro lubricant.

[0042] The preparation method of above-mentioned polysucrose laurate:

[0043] Step 1: Add 342.3g (1mol) of sucrose, 116.07g (1mol) of fumaric acid, 900.96g (3mol) of lauric acid, and 2g of phosphotungstic acid into the reactor, and react at a reaction temperature of 180°C for 5 hours; after the reaction Decompress and discharge water, which is sucrose laurate;

[0044] Step 2. When the temperature in the reactor drops below 100°C, add 1g of initiat...

Embodiment 3

[0046] Weigh 304.42g (1mol) of lactoic acid and 342.56g (1.5mol) of myristic acid into the reaction kettle, add the catalyst (1g of phosphotungstic acid), and react at a temperature of 200°C for 4 hours under nitrogen protection ; Decompression to remove moisture; that is, a lubricant composition.

[0047] Weigh and weigh 350g of lubricant composition, 250g of sophorolipid, 150g of polysucrose stearate, 60g of sodium castor oil sulfonate, 90g of isostearyl alcohol, and 100g of deionized water, mix and stir at room temperature until translucent. It is a micro lubricant.

[0048] The preparation method of above-mentioned polysucrose stearate:

[0049]Step 1: Add 342.3g (1mol) of sucrose, 98.08g (1mol) of maleic anhydride, 1137.92g (4mol) of stearic acid, and 5g of phosphotungstic acid into the reactor, and react at a reaction temperature of 200°C for 4.5 hours; After decompression to discharge water, it is sucrose stearate;

[0050] Step 2. When the temperature in the reactor...

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Abstract

The invention provides a lubricant composition which is characterized by being prepared from lac eleostearic acid and fatty acid, wherein the molar ratio of the lac eleostearic acid to the fatty acidis 1:(1-2). The prepared lubricant composition is lac eleostearic acid fatty acid ester, is a good nonionic surfactant and lubricant, and has good lubricating performance; meanwhile, the biodegradability is good, and the environment-friendly effect is achieved. The invention also provides a trace lubricant prepared from the lubricant composition, and the trace lubricant is characterized by being prepared from the following components in percentage by weight: 30-40% of the lubricant composition, 20-30% of sophorolipid, 10-20% of polysucrose fatty acid ester, 5-10% of castor oil sodium sulfonate, 5-10% of isostearyl alcohol, and the balance being deionized water. The prepared trace lubricant can meet the requirements of lubrication cooling, extreme pressure wear resistance and rust prevention in metal processing; and the usage amount of the lubricant can be saved by 90% or more when the trace lubricant is matched with a minimal quantity lubrication device.

Description

technical field [0001] The invention belongs to the technical field of lubrication, and in particular relates to an environment-friendly trace lubricant and a preparation method. Background technique [0002] Traditional metal cutting generally uses mineral oil / vegetable oil / cutting fluid for a large amount of shower lubrication and cooling. The amount of lubricant used is large, which not only wastes resources, but also causes huge pollution to the processing site and the environment, and also seriously affects the health of the operators. In good health. [0003] In order to solve these problems, some progress has been made in the recent research on micro-quantity lubrication technology at home and abroad. The micro-quantity lubrication technology has solved the problems of large amount of lubricant used and serious pollution. Excessive use of sulfur and chlorine-containing lubricants that are not friendly to the environment additive. [0004] Due to the relatively large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/00C10M177/00C10N30/06C10N30/04C10N30/12C10N40/22
CPCC10M173/00C10M177/00C10M2207/021C10M2207/289C10M2207/2895C10M2209/086C10M2219/044
Inventor 张兆平张苗苗张乃庆
Owner 上海贝能环保科技有限公司
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