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Method for producing industrial emulsion cutting fluid by using waste oil

A technology for producing industrial waste oil, which is applied in the petroleum industry, recycling technology, fat production, etc., can solve problems such as human health hazards, and achieve good stability, good social benefits, and considerable economic benefits

Active Publication Date: 2013-09-04
SUZHOU H&H ENVIRONMENTAL TREATMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If you eat this kind of oil for a long time, it will cause great harm to human health.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for utilizing waste oil to produce industrial emulsified cutting fluid is characterized in that it comprises the following production steps:

[0018] 1. Roughly filter the gutter oil with a 20-30 mesh filter to remove solid floating matter;

[0019] 2. Add 30-40 parts by weight of 5% NaOH solution to 100 parts by weight of the filtrate obtained in step 1, stir and heat to 70-80°C, react for 30-45 minutes, and slowly add 20% NaOH solution under stirring. 10-15 parts by weight of aluminum sulfate, continue to stir for 15 minutes, keep the heat preservation for 2-3 hours, carry out oil-water separation, and discard the water layer and flocs;

[0020] 3. Wash the oil layer with 20-30 parts by weight of soft water at 70-80°C, then separate the oil from water, discard the water layer and flocs, and repeat the washing process for 3 times;

[0021] 4. Add 20 to 30 parts by weight of activated clay to 100 parts by weight of the filtrate obtained in step 3, and stir and...

Embodiment 2

[0027] A method for utilizing waste oil to produce industrial emulsified cutting fluid is characterized in that it comprises the following production steps:

[0028] 1. Roughly filter the gutter oil with a 20-30 mesh filter to remove solid floating matter;

[0029] 2. Add 30 parts by weight of 5% NaOH solution to 100 parts by weight of the filtrate obtained in step 1, stir and heat to 70-80°C, react for 30-45 minutes, and slowly add aluminum sulfate with a content of 20% under stirring 10 parts by weight, continue to stir for 15 minutes, keep the heat preservation for 2 to 3 hours, carry out oil-water separation, and discard the water layer and flocs;

[0030] 3. Wash the oil layer with 20-30 parts by weight of soft water at 70-80°C, then separate the oil from water, discard the water layer and flocs, and repeat the washing process for 3 times;

[0031] 4. Add 20 to 30 parts by weight of activated clay to 100 parts by weight of the filtrate obtained in step 3, and stir and he...

Embodiment 3

[0037] A method for utilizing waste oil to produce industrial emulsified cutting fluid is characterized in that it comprises the following production steps:

[0038] 1. Roughly filter the gutter oil with a 20-30 mesh filter to remove solid floating matter;

[0039] 2. Add 40 parts by weight of NaOH solution with a content of 5% to 100 parts by weight of the filtrate obtained in step 1, stir and heat to 70-80°C, react for 30-45 minutes, and slowly add aluminum sulfate with a content of 20% under stirring 10-15 parts by weight, continue to stir for 15 minutes, keep the heat for 2-3 hours, separate oil from water, and discard the water layer and flocs;

[0040] 3. Wash the oil layer with 20-30 parts by weight of soft water at 70-80°C, then separate the oil from water, discard the water layer and flocs, and repeat the washing process for 3 times;

[0041] 4. Add 20 to 30 parts by weight of activated clay to 100 parts by weight of the filtrate obtained in step 3, and stir and heat...

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Abstract

A method for producing industrial emulsion cutting fluid by using waste oil comprises the steps as follows: first, coarsely filtering the waste oil to remove solid floatage; then adding NaOH solution, stirring and heating, adding aluminium sulphate, and removing a water layer and floccule; washing an oil layer through soft water, conducting oil-water separation, removing a water layer and floccule, adding activated clay, and conducting thermal filtration; conducting steam distillation to obtain refined waste oil; mixing the refined waste oil with petroleum sodium sulfonate, oleic acid, triethanolamine, sodium benzoate and butylated hydroxyl toluene to serve as the oil phase, mixing water with boric acid and emulsifying agent OP-10 to serve as the aqueous phase, adding the oil phase into the aqueous phase under high-speed stir, continuing stirring, and then reducing the temperature slowly to the ambient temperature under low-speed stirring, so as to obtain the finished product. The method taking waste oil as the raw material fully utilizes the utilizable value of waste oil and makes a way out for waste oil, thereby changing waste into valuable and conforming to the model of circular economy; and the product produced through the method has good stability, is easy to dilute and can be kept for a long time.

Description

【Technical field】 [0001] The invention relates to a mixture of base materials and additives, mainly used for cutting materials, using additives that impart characteristics to lubricating compositions to improve specific physical or chemical properties, such as multifunctional additives, especially a kind of industrial emulsified cutting using waste oil liquid method. 【Background technique】 [0002] Cutting fluid is an additive commonly used in metal cutting, chipping, grinding and other processing processes to cool and lubricate tools or workpieces. The cutting fluid should have good cooling performance, lubricating performance, anti-rust performance, degreasing and cleaning function, anti-corrosion function, and easy dilution. [0003] At present, the emulsified cutting fluids commonly used in industry are mostly made of mineral oil as base oil, and then compounded with corrosion inhibitors, emulsifiers, antirust agents and other additives. Since mineral oil is a non-rene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10M173/00C10M177/00C11B13/00C10N40/22
CPCY02W30/74
Inventor 侯斌樊逸平
Owner SUZHOU H&H ENVIRONMENTAL TREATMENT
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