CN107699330B - Method for purifying and preparing antirust grease base oil by using waste lubricating oil of heavy locomotive - Google Patents
Method for purifying and preparing antirust grease base oil by using waste lubricating oil of heavy locomotive Download PDFInfo
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- CN107699330B CN107699330B CN201710839213.7A CN201710839213A CN107699330B CN 107699330 B CN107699330 B CN 107699330B CN 201710839213 A CN201710839213 A CN 201710839213A CN 107699330 B CN107699330 B CN 107699330B
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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
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0008—Working-up used lubricants to recover useful products ; Cleaning with the use of adsorbentia
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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
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0016—Working-up used lubricants to recover useful products ; Cleaning with the use of chemical agents
-
- 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
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0058—Working-up used lubricants to recover useful products ; Cleaning by filtration and centrifugation processes; apparatus therefor
-
- 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
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0083—Lubricating greases
-
- 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
- C10N2040/48—Slushing oils
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention relates to a method for purifying and preparing antirust grease base oil by using waste lubricating oil of heavy locomotives, which comprises the steps of respectively carrying out adsorption treatment on the waste lubricating oil through viscous particles, alkaline substances, magnetic particles and active carbon, effectively removing most of asphalt colloid, acidic impurities, metal impurities and colored impurities contained in the waste lubricating oil, and finally obtaining the antirust grease base oil with better quality. The method has the advantages of high recovery rate, low cost, simple process, strong operability, energy conservation, environmental protection and the like.
Description
Technical Field
The invention belongs to the technical field of lubricating oil recycling, and particularly relates to a method for purifying and preparing antirust grease base oil by using waste lubricating oil of a heavy locomotive.
Background
The annual sales of lubricating oil in China exceeds 400 million tons, a large amount of waste lubricating oil is generated every year, the waste lubricating oil is usually used as a fuel auxiliary material at present and is not fully utilized, so that great resource waste is caused, and a way and a method for recycling waste oil are urgently needed to be found.
The rust-proof grease is a high-end fine product for keeping the metal surface rustless, and the preparation of the rust-proof grease by using the waste lubricating oil is an effective way for efficiently utilizing the waste lubricating oil, and has the advantages that: the waste lubricating oil contains a large amount of antirust grease components, and the cost of the antirust grease can be greatly reduced by using the antirust grease components to prepare the base oil of the antirust grease, so that the waste lubricating oil can be reasonably and effectively utilized.
In the running process of a locomotive, lubricating oil is subjected to high temperature, air oxidation and the like, and is gradually aged and deteriorated to generate impurities such as asphalt colloid, organic acid substances, coke powder and the like, and simultaneously, impurities such as metal powder and the like are generated due to friction of metal parts and are mixed in the waste lubricating oil. Chinese patent CN104498173A discloses a regeneration method of waste lubricating oil containing colloid, which adopts attapulgite concentrate adsorbent, high-alumina attapulgite concentrate adsorbent, molecular sieve obtained by mixing and calcining siliceous sedimentary rock crude ore and siliceous volcanic acid lava crude ore, etc. as adsorbents to adsorb colloid in the waste lubricating oil in three steps. The method can remove most of colloid, but the adsorbent has large dosage and high manufacturing cost, and the waste oil is removed to facilitate the preparation of the antirust grease, and in addition, the acidic impurities, carbon and metal impurities contained in the waste oil are difficult to remove. Chinese patent CN106833739A discloses a method for regenerating used oil, which utilizes 200 mesh modified sodium bentonite powder to adsorb colloid in the used oil in one step, other impurities such as acidic organic matters, metal impurities and carbon elements are not completely removed, and resistance in the filtering process is large, and the obtained oil product quality is poor.
Disclosure of Invention
The invention aims to overcome the defects of incomplete impurity removal, large adsorbent consumption, poor quality of regenerated oil and the like in the existing waste lubricating oil regeneration process, and provides a method for purifying and preparing antirust grease base oil by using waste lubricating oil of heavy locomotives. The method comprises the steps of adsorbing heavy asphalt colloid, purifying by using alkaline substance reaction to remove acidic impurities, adsorbing by using magnetic particles to remove metal impurities, and adsorbing and decoloring by using an activated carbon layer. The rust-proof grease prepared by the method has strong adhesive force and good compatibility and retentivity to the corrosion inhibitor.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a method for purifying and preparing antirust grease base oil by using waste lubricating oil of heavy locomotives comprises the following specific steps: and heating the waste lubricating oil, and then respectively carrying out adsorption filtration by using viscous particles, alkaline substances, magnetic particles and active carbon to finally obtain the purified antirust grease base oil.
In the above scheme, the used lubricating oil is first left to stand overnight and then filtered, and then heated to 50-80 ℃.
In the scheme, viscous particles are added into the heated waste lubricating oil according to the mass ratio of oil to solid (oil to solid for short, the same below) of 1:0.1-0.3, and the mixture is quickly stirred for 5-30min and then filtered.
In the scheme, alkaline substance calcium oxide or calcium hydroxide is added into the waste lubricating oil after the viscous particle adsorption treatment according to the oil-solid ratio of 1:0.05-0.2, and the mixture is subjected to centrifugal filtration after being rapidly stirred for 5-30 min.
In the scheme, magnetic particles are added into the waste lubricating oil subjected to the adsorption treatment of alkaline substance calcium oxide or calcium hydroxide according to the oil-solid ratio of 1:0.1, and the mixture is rapidly stirred for 5-30min and then filtered by an activated carbon layer.
In the scheme, the sticky particles are selected from one of modified kaolin, modified magnesium aluminum silicate ore soil and modified activated alumina, the particle size of the sticky particles is controlled to be 60-100 meshes, and the specific surface area is controlled to be 100-1000m2/g。
In the scheme, the magnetic particles are selected from one of natural magnets (such as ferroferric oxide), magnetite, neodymium iron boron magnets, samarium cobalt magnets and alnico magnets, the particle size of the magnetic particles is 10-50 meshes, and the size of the active carbon particles is about 1-10 microns.
In the scheme, the waste lubricating oil is waste lubricating oil after replacement of heavy trucks, ships, trains and heavy tractors.
Compared with the prior art, the invention has the following beneficial effects: (1) the recovery rate is high, the cost is low, the process is simple, and the operability is strong; (2) crude asphalt colloid, acidic impurities (such as organic acid), metal impurities (such as iron, nickel and cobalt), colored impurities (such as carbon particles) and the like in the waste lubricating oil are pertinently and gradually adsorbed and removed, and the obtained antirust grease base oil has good quality; (3) distillation and solvent extraction operations in the traditional waste lubricating oil regeneration process are avoided, energy is saved, environment is protected, and pollution of acid sludge, waste water and the like generated by the traditional process is avoided; (4) the removal rate of C5-C7 asphaltene in the waste lubricating oil treated by the method reaches 60-80 percent, the removal rate of organic acid reaches 80-90 percent, the removal rate of scrap iron particles reaches more than 90 percent, and the chroma of the lubricating oil is changed from dark black to light brown; (5) the rust-proof grease prepared by the method has strong adhesive force and good compatibility and retentivity to the corrosion inhibitor.
Detailed Description
In order to make those skilled in the art fully understand the technical solutions and advantages of the present invention, the following embodiments are further described.
Example 1
Taking waste lubricating oil of a heavy truck as a basic raw material, standing overnight, filtering, heating to 50 ℃, adding modified kaolin clay viscous particles with the particle size of 80-100 meshes according to the oil-solid ratio of 1:0.3, quickly stirring for 5 minutes, filtering, then adding calcium oxide powder according to the oil-solid ratio of 1:0.05, quickly stirring for 30 minutes, centrifuging, filtering, adding 10-30 meshes of ferroferric oxide powder magnetic particles according to the oil-solid ratio of 1:0.1, quickly stirring for 30 minutes, and filtering by using an activated carbon layer with the average pore size of 1-10 mu m to obtain light brown antirust oil base oil, wherein the recovery rate of the waste lubricating oil reaches 80%.
Table 1 shows the results of comparing the impurity levels before and after the purification of the heavy truck lubricating oil of example 1 according to the present invention. Table 1 shows that the removal rate of C5-C7 asphaltene reaches 75%, the removal rate of iron impurities reaches 92%, and acid impurities are greatly reduced. When compared with naphthenic base oil, the purified oil is found to have better oxidation resistance, adsorptivity and prolonged corrosion inhibition performance as the base oil.
TABLE 1 comparison of impurity content before and after treatment of heavy truck used lubricating oil
Example 2
The method comprises the steps of taking ship waste lubricating oil as a basic raw material, standing overnight, filtering, heating to 60 ℃, adding modified kaolin clay sticky particles with the particle size of 80-100 meshes according to the oil-solid ratio of 1:0.1, rapidly stirring for 30 minutes, filtering, then adding calcium hydroxide according to the oil-solid ratio of 1:0.2, rapidly stirring for 5 minutes, centrifuging, filtering, adding 30-50 meshes of magnetite particles with ferroferric oxide as a matrix according to the oil-solid ratio of 1:0.1, rapidly stirring for 10 minutes, and filtering by using an activated carbon layer with the average pore size of 1-10 mu m to obtain light brown antirust grease base oil, wherein the recovery rate of the waste lubricating oil reaches 86%.
Table 2 shows the results of comparing the contents of impurities before and after the purification of the ship's used lubricating oil of example 2 of the present invention. Table 2 shows that the removal rate of C5-C7 asphaltene reaches 80%, the removal rate of iron impurities reaches 89%, and acid impurities are greatly reduced. When compared with naphthenic base oil, the purified oil is used as the base oil and has the advantages of good oxidation resistance, adsorbability and prolonged corrosion inhibition.
TABLE 2 comparison of impurity content before and after treatment of ship waste lubricating oil
Example 3
The method comprises the steps of taking train waste lubricating oil as a basic raw material, standing overnight, filtering, heating to 80 ℃, adding modified activated alumina viscous particles with the particle size of 60-80 meshes according to the oil-solid ratio of 1:0.3, rapidly stirring for 15 minutes, filtering, adding calcium hydroxide according to the oil-solid ratio of 1:0.1, rapidly stirring for 20 minutes, centrifuging, filtering, adding 30-50 meshes of high-strength magnetic particles taking ferroferric oxide as a matrix according to the oil-solid ratio of 1:0.1, rapidly stirring for 10 minutes, and filtering by using an activated carbon layer with the average pore size of 1-10 microns to obtain light brown antirust grease base oil, wherein the recovery rate of the waste lubricating oil reaches 83%.
Example 4
Taking waste lubricating oil of a heavy tractor as a basic raw material, standing overnight, filtering, heating to 70 ℃, adding modified activated alumina viscous particles with the particle size of 60-80 meshes according to the oil-solid ratio of 1:0.3, quickly stirring for 5 minutes, filtering, then adding calcium oxide according to the oil-solid ratio of 1:0.15, quickly stirring for 15 minutes, centrifuging, filtering, adding neodymium iron boron magnet particles with the particle size of 30-50 meshes according to the oil-solid ratio of 1:0.1, quickly stirring for 20 minutes, and filtering by using an activated carbon layer with the average pore size of 1-10 mu m to obtain light brown antirust grease base oil, wherein the recovery rate of the waste lubricating oil reaches 83%.
Example 5
Taking waste lubricating oil of a high-speed rail motor car as a basic raw material, standing overnight, filtering, heating to 80 ℃, adding modified magnesium aluminum silicate mineral clay viscous particles with the particle size of 60-80 meshes according to the oil-solid ratio of 1:0.3, rapidly stirring for 10 minutes, filtering, then adding calcium oxide powder according to the oil-solid ratio of 1:0.2, rapidly stirring for 30 minutes, centrifuging, filtering, adding natural magnet particles with 30-50 meshes and ferroferric oxide as a matrix according to the oil-solid ratio of 1:0.1, rapidly stirring for 30 minutes, and filtering by using an active carbon layer with the average pore size of 1-10 mu m to obtain light brown antirust grease base oil, wherein the recovery rate of the waste lubricating oil reaches 85%.
Claims (2)
1. A method for purifying and preparing antirust grease base oil by using waste lubricating oil of heavy locomotives is characterized by comprising the following steps: firstly, standing the waste lubricating oil overnight, filtering, and then heating to 50-80 ℃; adding viscous particles into the heated waste lubricating oil according to the oil-solid ratio of 1:0.1-0.3, rapidly stirring for 5-30min, and filtering; adding alkaline substances into the waste lubricating oil subjected to the viscous particle adsorption treatment according to the oil-solid ratio of 1:0.05-0.2, quickly stirring for 5-30min, and centrifuging and filtering; adding magnetic particles into the waste lubricating oil subjected to alkaline substance adsorption treatment according to the oil-solid ratio of 1:0.1, quickly stirring for 5-30min, and filtering by using an activated carbon layer to obtain purified antirust oil base oil; the viscous particles are selected from one of modified kaolin, modified magnesium aluminum silicate ore soil and modified activated alumina, the particle size of the viscous particles is controlled to be 60-100 meshes, and the specific surface area is controlled to be 100-1000m2(ii)/g; the alkaline substance is selected from one of calcium oxide and calcium hydroxide; the magnetic particles are selected from one of ferroferric oxide magnets, magnetite ores, neodymium iron boron magnets, samarium cobalt magnets and alnico magnets, the particle size of the magnetic particles is 10-50 meshes, and the size of the active carbon particles is 1-10 mu m.
2. The method for preparing the rust-proof grease base oil by using the purification of the waste lubricating oil of the heavy-duty locomotive as claimed in claim 1, wherein the method comprises the following steps: the waste lubricating oil is waste lubricating oil after replacement of heavy trucks, ships, trains and heavy tractors.
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| CN201710839213.7A CN107699330B (en) | 2017-09-18 | 2017-09-18 | Method for purifying and preparing antirust grease base oil by using waste lubricating oil of heavy locomotive |
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| CN107699330B true CN107699330B (en) | 2021-06-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2801576C1 (en) * | 2022-11-28 | 2023-08-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Астраханский государственный технический университет" | Method for adsorption cleaning of used mineral engine oil |
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| CN102373108A (en) * | 2010-08-18 | 2012-03-14 | 北京金隅红树林环保技术有限责任公司 | Process method for producing base oil by regenerating waste lubricating oil |
| CN103215116A (en) * | 2013-05-10 | 2013-07-24 | 福建龙岩力浩新能源有限公司 | Regenerating process of waste lubricating oil |
| CN105524702A (en) * | 2015-12-22 | 2016-04-27 | 西安石油大学 | Waste lubricating oil environment-friendly regeneration method |
| CN106906040A (en) * | 2017-02-28 | 2017-06-30 | 中石化炼化工程（集团）股份有限公司 | A kind of renovation process of waste lubricating oil |
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- 2017-09-18 CN CN201710839213.7A patent/CN107699330B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102373108A (en) * | 2010-08-18 | 2012-03-14 | 北京金隅红树林环保技术有限责任公司 | Process method for producing base oil by regenerating waste lubricating oil |
| CN102260584A (en) * | 2011-06-24 | 2011-11-30 | 上海宝钢废旧油处理有限公司 | Industrial waste lubricating oil regeneration process |
| CN103215116A (en) * | 2013-05-10 | 2013-07-24 | 福建龙岩力浩新能源有限公司 | Regenerating process of waste lubricating oil |
| CN105524702A (en) * | 2015-12-22 | 2016-04-27 | 西安石油大学 | Waste lubricating oil environment-friendly regeneration method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2801576C1 (en) * | 2022-11-28 | 2023-08-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Астраханский государственный технический университет" | Method for adsorption cleaning of used mineral engine oil |
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Effective date of registration: 20230829 Address after: 438300 No. 275 Jinqiao Avenue, Jinqiao Development Zone, Macheng City, Huanggang City, Hubei Province Patentee after: MACHENG TIANAN CHEMICAL CO.,LTD. Address before: 430074, No. 693 Xiong Chu street, Hongshan District, Hubei, Wuhan Patentee before: WUHAN INSTITUTE OF TECHNOLOGY |