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Emulsion cutting fluid composition

A technology of composition and cutting fluid, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of influence of filtration system, poor on-site sanitation, increased consumption of filter paper, etc.

Active Publication Date: 2015-09-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In hard water conditions, especially long-term replenishment, a large amount of soap will be formed, and the accumulation of fatty acid soap will have a certain negative impact on the cutting fluid and machining process, which may lead to unstable emulsion and increase the consumption of concentrate
When soap is bonded together with foam, metal powder, miscellaneous oil and other components in the machine tool or in the centralized liquid supply system to form scum or even viscous substances, it will cause more problems. They float or accumulate on the In the working fluid, it will not only affect the filtration system, cause blockage, increase the consumption of filter paper, and poor sanitation on site, but also cause processing accuracy problems if it remains in the cutting tool, measuring tool and transmission system

Method used

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  • Emulsion cutting fluid composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Example 1 Synthesis of polyisobutylene o-cresol

[0056] In a 500ml four-necked flask equipped with a stirrer, thermometer, condenser and dropping funnel, add 34.93g (0.323mol) o-cresol, 6.88g (0.048mol) boron trifluoride ether catalyst, and 100ml n-hexane solvent React with 161.61g (0.162mol) of polyisobutylene (Mn=1000) at 80°C for 2h. After the reaction, the reaction mixture was washed once with 5% potassium hydroxide solution, and washed with hot water until neutral to remove the catalyst, and then the solvent and unreacted o-cresol were removed by distillation under reduced pressure. The hydroxyl value of the synthetic product polyisobutylene o-cresol was 53.49 mg / g. The determination of hydroxyl value refers to the acetic anhydride method in GB / T7383-2007.

[0057] An example reaction is as follows:

[0058]

Embodiment 2

[0060] The polyisobutylene o-cresol 47.16g (0.045mol) obtained in Example 1 was added to a 500ml four-neck beaker equipped with a stirrer, a thermometer and a separator under nitrogen protection, and then 2.70g (0.045mol) was added. ethylenediamine, 3.83g (0.047mol) formaldehyde, and 47ml of toluene was added as a reaction solvent. After reacting at 80°C for 1.5h, the temperature was lowered to room temperature, and 4.17g (0.0225mol) of p-hydroxydiphenylamine, 3.83g ( 0.047mol) formaldehyde, react at 70°C for 1h. After the reaction is completed, the solvent and a small amount of water generated are distilled off under reduced pressure to obtain the final Mannich base detergent. An example reaction is as follows:

[0061]

[0062] or a small amount

[0063]

Embodiment 3

[0065] The polyisobutylene o-cresol 53.37g (0.051mol) prepared in Example 1 was added to a 500ml four-neck beaker equipped with a stirrer, a thermometer and a separator under nitrogen protection, and then 7.46g (0.051mol) was added. of triethylenetetramine, 4.38g (0.054mol) formaldehyde, and 54ml of xylene was added as a reaction solvent. After reacting at 100°C for 1.5h, the temperature was cooled to room temperature, and 5.87g (0.0255mol) of 4-hydroxy-2'- Nitrodiphenylamine, 4.38g (0.054mol) formaldehyde, react at 80°C for 1h. After the reaction is completed, the solvent and a small amount of water generated are distilled off under reduced pressure to obtain the final Mannich base detergent. Refer to Example 2 for an example reaction.

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Abstract

The present invention provides an emulsion cutting fluid composition and a method to improve the emulsion cutting fluid hard water resistance stability and a method to improve the emulsion cutting fluid rust-proof performance. The emulsion cutting fluid composition comprises a Mannich base, an emulsifier, lubricating base oil, and balance of water, the preparation method of the Mannich base includes the following steps: (1) in the presence of an alkylation reaction catalyst, phenol and / or a mono-ortho alkylphenol are / is reacted with polyolefin, and an alkylated product is collected; (2) an intermediate base product is obtained by Mannich reaction of the alkylated product obtained by the step (1) and polyethylene-polyamine and aldehyde; and (3) secondary Mannich reaction of the intermediate product obtained by the step (2) and a parahydroxydiphenylamine derivative and aldehyde is performed, and the final Mannich base is collected; and the emulsion cutting fluid composition has excellent hard water resistance stability and rust-proof performance, and can fully meet the requirements of use in larger water hardness areas.

Description

technical field [0001] The invention relates to a micro-emulsion cutting fluid composition, in particular to a micro-emulsion cutting fluid composition with excellent resistance to hard water stability and anti-rust performance. Background technique [0002] Cutting fluid plays a role in lubricating and cooling machining tools and components in the process of metal cutting, and its performance indicators directly affect the quality, efficiency and cost of cutting. Water-based metal cutting fluids came out in the 1940s. So far, the application of water-based fluids in the cutting field has made great progress. Microemulsion cutting fluid consists of base oil, surfactant (emulsifier), water, rust inhibitor (including non-ferrous metal rust inhibitor), lubricant, extreme pressure agent, defoamer, antifungal agent (bactericide), Coupling agent, etc. It is a new metalworking fluid product between emulsified oil and synthetic cutting fluid. The liquid form of microemulsion cutti...

Claims

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Application Information

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IPC IPC(8): C10M173/00C10N40/22C10N30/12
Inventor 赵敏辛世豪黄作鑫段庆华
Owner CHINA PETROLEUM & CHEM CORP