CN1962837B - Process for regeneration of waste lubricating oil - Google Patents
Process for regeneration of waste lubricating oil Download PDFInfo
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- CN1962837B CN1962837B CN2006100702226A CN200610070222A CN1962837B CN 1962837 B CN1962837 B CN 1962837B CN 2006100702226 A CN2006100702226 A CN 2006100702226A CN 200610070222 A CN200610070222 A CN 200610070222A CN 1962837 B CN1962837 B CN 1962837B
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- lubricating oil
- lubricant
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Abstract
The present invention discloses a regenerating technique of waste lubricant in the product technical recycling field, which comprises the following steps: depositing waste lubricant at 45-55 DEG C; centrifuging; separating; filtering; heating 60m<3> waste lubricant to 50 DEG C; adding NaOH solution; stirring; heating to 55 Deg C; adding hydrogen oxide solution; heating continuously to 65 DEG C; depositing 24h; cooling to indoor temperature; discharging lower oil; adding 0.5% anhydrous AlCl3 in the upper oil; stirring to heat to 80 Deg C; stirring under constant temperature for 1h; cooling to indoor temperature; decoloring; filtering; adding 0.2% additive to obtain the standard lubricant, wherein the additive is prepared by mixing the dialkyl diphenylamine and polymethacrylate. The regenerating technique of waste lubricant provided by the present invention has the advantages of simple industrial art, small investment as a simple regenerating method of lubricant, and the recycled lubricant completely meets the relevant state standards.
Description
Technical field
The invention belongs to processing exhausted lubricant,, be specifically related to a kind of process for regeneration of waste lubricating oil to reclaim useful product technical field.
Background technology
Lubricating oil in use, because the oxygenizement of high temperature and air, meeting aged deterioration gradually, add friction means and grind the metal-powder that gets off, respiration and other reason and enter moisture in the oil, the impurity of invading from environment has not only polluted oil, and can also promote oxidation of lubricating oil.So, lubricating oil certain hour is rotten acquire a certain degree after, must change, thereby produce this reject product of waste lubricating oil.And along with country more opens up, mechanization degree is higher, the lubricating oil of usefulness also the more, waste lubricating oil is also corresponding to be increased.
Waste lubricating oil used to adopt and abandon, road oiling, burning, through removing heavy metal several method such as act as a fuel, these methods all can not effectively re-use waste lubricating oil, and are easier to cause environmental pollution.
The 45th page of king of total the 52nd phase of " heavy-duty car " 1999 the 3rd phases becomes triumphant " brief talking the simple and easy renovation process of lubricating oil " to disclose a kind of simple and easy renovation process of waste lubricating oil, main processes is: with 3～5% sodium hydroxide solution neutralization, temperature is advisable with about 70 ℃; For the bigger lubricating oil of viscosity, then adopt 1% concentration hydrogen sodium hydroxide solution, for avoiding emulsification, neutral temperature is brought up to 95～98 ℃, gentle agitation 15～20min, only otherwise produce emulsification, 1～2h just can isolate alkaline residue, washes then and dewaters.
Summary of the invention
The invention provides a kind of recovery technology of waste lubricating oil, it is simple to have technology, less investment, and the lubricating oil that is reclaimed meets relevant national standard fully.
The concrete technical scheme that the present invention adopts is as follows:
A kind of process for regeneration of waste lubricating oil is characterized in that, comprises the following steps:
1) waste lubricating oil is after 45 ℃ of-55 ℃ of following sedimentations, centrifugation, filtration;
2) get the waste lubricating oil 60m of step 1)
3Be warming up to 50 ℃, adding 120L concentration is 50% NaOH solution, stirs, and when being warming up to 55 ℃, adding 40L concentration is 30% superoxol, continues to be warming up to 65 ℃;
3) sedimentation 24h is cooled to room temperature, bleeds off the assorted oil in bottom, adds 0.5% anhydrous AlCl in the edible vegetable oil of top
3, being heated to 80 ℃ under stirring, constant temperature is cooled to room temperature after stirring 1h, decolouring, filtration, the additive of adding 0.2% promptly gets qualified lubricating oil;
Described additive is that dialkylated diphenylamine and polymethacrylate are mixed.
Described additive is that dialkylated diphenylamine and polymethacrylate get according to weight ratio 1:1 is mixed.
Invent described sedimentation and be and adopt the magnetic slurry tank, the process that the part moisture in the waste lubricating oil and mechanical impurity are removed; In this process, oily temperature control is at 50 ± 5 ℃.
All raw materials that adopt among the present invention all are commercial goods.
Reaction mechanism of the present invention:
1) the present invention adopts the higher NaOH solution of concentration to be because organic acid reactions such as the naphthenic acid in NaOH solution and the oil, base acid, lipid acid, phenol generate salt, Zao Heshui;
2) owing to all be added with a certain amount of detergency additive in the oil, add NaOH and H
2O
2, its suspension system is destroyed, the impurity coacervating large particle is and settlement separate, and its reaction mechanism is not gone definitely, is commonly considered as H
2O
2The class material is the survivor that sends out of free radical, can be enclosed in the peripheral extremities protective layer of impurity particle with destruction mainly being to produce transfer transport in " non-aqueous media ".
3) add AlCl
3Be at a certain temperature,, generate coarse-grained precipitation and allow its sedimentation the impurity in the waste oil and hydro carbons and its reaction.
Technology of the present invention has simply, less investment, and the finished lube that obtains meets national standard fully, thereby has reduced waste, has saved resource.
Description of drawings
Fig. 1 is a process flow sheet of the present invention
Embodiment
Embodiment
Handle waste internal-combustion engine oil according to the following step:
1) waste internal-combustion engine oil is 45 ℃ of-55 ℃ of following sedimentations, and centrifugation is filtered;
2) get the waste internal-combustion engine oil 60m of step 1)
3Be warming up to 50 ℃, adding 120L concentration is 50% NaOH solution, stirs, and when being warming up to 55 ℃, adding 40L concentration is 30% superoxol, continues to be warming up to 65 ℃; Sedimentation 24h is cooled to room temperature, bleeds off the assorted oil in bottom, adds the anhydrous AlCl of 0.5% (weight ratio) in the edible vegetable oil of top
3, being heated to 80 ℃ under stirring, constant temperature is cooled to room temperature after stirring 1h, decolouring, filtration, the additive of adding 0.2% (weight ratio) promptly gets qualified rerefined oil; The quality index contrast situation of recovered oil sees Table 1.
Described additive is that dialkylated diphenylamine and polymethacrylate get according to weight ratio 1:1 is mixed.
Table 1 fresh oil, waste oil, quality of reclaimed contrast table
| Project | Fresh oil | Waste oil | Recovered oil |
| Long-pending degree, mm2/s (100 ℃) | 10.98 | 11.8 | 10.99 |
| Acid number, mgKoH/g | 0.16 | 0.75 | 0.17 |
| Carbon residue, % | 0.40 | 1.85 | 0.41 |
| Ash content, % | 0.001 | 0.65 | 0.0015 |
| Mechanical impurity, % | 0.016 | 2.7 | 0.017 |
| Flash-point (opening), ℃ | 230 | 150 | 228 |
| Product are opened accurate strange corrosion, g/m2 | 725 | 161.0 | 74 |
Claims (2)
1. a process for regeneration of waste lubricating oil is characterized in that, comprises the following steps:
1) waste lubricant of internal combustion engine is after 45 ℃ of-55 ℃ of following sedimentations, centrifugation, filtration;
2) get the waste lubricating oil 60m of step 1)
3Be warming up to 50 ℃, adding 120L concentration is 50% NaOH solution, stirs, and when being warming up to 55 ℃, adding 40L concentration is 30% superoxol, continues to be warming up to 65 ℃;
3) sedimentation 24h is cooled to room temperature, bleeds off the assorted oil in bottom, adds 0.5% anhydrous AlCl in the edible vegetable oil of top
3, being heated to 80 ℃ under stirring, constant temperature is cooled to room temperature after stirring 1h, decolouring, filtration, the additive of adding 0.2% promptly gets qualified lubricating oil;
Described additive is that dialkylated diphenylamine and polymethacrylate are mixed.
2. process for regeneration of waste lubricating oil according to claim 1, it is characterized in that described additive to be dialkylated diphenylamine and polymethacrylate according to weight ratio 1: 1 mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100702226A CN1962837B (en) | 2006-11-17 | 2006-11-17 | Process for regeneration of waste lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100702226A CN1962837B (en) | 2006-11-17 | 2006-11-17 | Process for regeneration of waste lubricating oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1962837A CN1962837A (en) | 2007-05-16 |
| CN1962837B true CN1962837B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100702226A Expired - Fee Related CN1962837B (en) | 2006-11-17 | 2006-11-17 | Process for regeneration of waste lubricating oil |
Country Status (1)
| Country | Link |
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100594367C (en) * | 2007-05-18 | 2010-03-17 | 洛阳Lyc轴承有限公司 | Disabled grease mechanical impurity separation method |
| CN101768505B (en) * | 2010-02-08 | 2012-08-08 | 长安大学 | Flocculated-adsorption regeneration treating method for waste engine oil |
| CN102304414B (en) * | 2011-08-03 | 2013-01-02 | 江苏雕皇石化科技有限公司 | Method for regenerating waste lubricating oil |
| CN103242950B (en) * | 2013-05-20 | 2014-08-06 | 宁波市蓝润能源科技有限公司 | Pollution-free waste lubricating oil regeneration process |
| CN104498172A (en) * | 2013-12-09 | 2015-04-08 | 柳州市菱动能源科技有限公司 | Technological method for reduction regeneration of waste lubricating oil |
| CN104450006B (en) * | 2014-11-19 | 2017-03-29 | 河南倍佳润滑科技股份有限公司 | A kind of regenerating waste internal combustion engine oil high-performance grease and preparation method |
| CN104498173B (en) * | 2014-12-14 | 2017-03-08 | 创石（天津）化工有限公司 | Renovation process containing glue waste lubricating oil |
| CN104498174A (en) * | 2015-01-04 | 2015-04-08 | 吴江华威特种油有限公司 | Regeneration method of waste lubrication oil |
| CN104914233A (en) * | 2015-06-29 | 2015-09-16 | 成都迈斯拓新能源润滑材料有限公司 | Method for evaluating regeneration feasibility of conduction oil online |
| CN105296134B (en) * | 2015-10-22 | 2018-08-28 | 河北伦特石油化工有限公司 | The regeneration method of used oil |
| CN106967457A (en) * | 2017-04-18 | 2017-07-21 | 茂名市凯跃特种油剂有限公司 | A kind of process for refining of use producing lubricating oil from waste engine oil base oil |
| CN108485791A (en) * | 2018-05-17 | 2018-09-04 | 濮阳市盛源石油化工（集团）有限公司 | A kind of decoloration of environment-friendly type waste lubricating oil de-tastes regeneration technology |
| CN111375391B (en) * | 2018-12-28 | 2023-02-03 | 中国石油化工股份有限公司 | Method for reducing oil content of waste argil |
| CN109777593A (en) * | 2019-01-30 | 2019-05-21 | 四川锐恒润滑油有限公司 | A kind of used oil pretreatment system and technique |
| CN109852464A (en) * | 2019-03-15 | 2019-06-07 | 内蒙古大江润业环保科技有限公司 | New lubricating oil technology of waste oil regenerating method |
| CN113201383B (en) * | 2021-05-14 | 2023-06-13 | 深高蓝德环保科技集团股份有限公司 | Biodegradable lubricating grease and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3904512A (en) * | 1973-12-26 | 1975-09-09 | British Columbia Res Council | Method for reclaiming used crankcase oil |
| CN1067262A (en) * | 1991-05-24 | 1992-12-23 | 李中轩 | A kind of method that reclaims lubricating oil in the dregs of fat |
| CN1616586A (en) * | 2003-11-12 | 2005-05-18 | 李茂山 | Method for recovering lubricating oil from oil slag |
-
2006
- 2006-11-17 CN CN2006100702226A patent/CN1962837B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3904512A (en) * | 1973-12-26 | 1975-09-09 | British Columbia Res Council | Method for reclaiming used crankcase oil |
| CN1067262A (en) * | 1991-05-24 | 1992-12-23 | 李中轩 | A kind of method that reclaims lubricating oil in the dregs of fat |
| CN1616586A (en) * | 2003-11-12 | 2005-05-18 | 李茂山 | Method for recovering lubricating oil from oil slag |
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| Publication number | Publication date |
|---|---|
| CN1962837A (en) | 2007-05-16 |
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