CN106833861A - The reuse method of waste lubrication oil - Google Patents
The reuse method of waste lubrication oil Download PDFInfo
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- CN106833861A CN106833861A CN201710097500.5A CN201710097500A CN106833861A CN 106833861 A CN106833861 A CN 106833861A CN 201710097500 A CN201710097500 A CN 201710097500A CN 106833861 A CN106833861 A CN 106833861A
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- sodium hydroxide
- hydroxide solution
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- vegetable oil
- oil
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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
- C10M175/0083—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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- 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)
- Fats And Perfumes (AREA)
Abstract
The invention discloses a kind of reuse method of waste lubrication oil, including：Step one, lubricating oil is heated to 30 35 DEG C at settle, lubricating oil is heated to 60 65 DEG C again afterwards；Step 2, lubricating oil is warming up to 70 76 DEG C, adds sodium hydroxide solution；Step 3, decline in 0.1 0.3 DEG C/min of speed and warm to room temperature, edible vegetable oil is heated to 85 88 DEG C, add alchlor；Add sodium hydroxide solution；And during sodium hydroxide solution is added, oxygen is passed through, oxygen is passed through speed for 0.1 0.2 cubic meters per minutes, after stopping adding, continues to be passed through oxygen 40 50 minutes；Step 4, add additive.Step 5, it is cooled to room temperature with 0.6 0.8 DEG C/min.Present invention improves regeneration technology parameters, so as to improve the efficiency and quality of regeneration, the indices of the lubricating oil that regeneration is obtained are very excellent.
Description
Technical field
The present invention relates to a kind of reuse method of waste lubrication oil.
Background technology
Lubricating oil in use, in the presence of high temperature and air, understands gradually aged deterioration.Because lubricating oil exists
After a period of time, its is rotten to reach to a certain degree, be the normal service life for using, extending workpiece for ensureing workpiece,
Just must more oil change, so as to produce discarded lubricating oil.If not carrying out regeneration treatment, one to these waste lubrication oils
Aspect can cause environmental pollution, while also resulting in the waste to resource, be unfavorable for sustainable development.
The content of the invention
For above-mentioned technical problem, the present invention has designed and developed a kind of recycling side of the waste lubrication oil of favorable regeneration effect
Method.
The present invention provide technical scheme be：
A kind of reuse method of waste lubrication oil, it is characterised in that including：
Step one, lubricating oil is heated to 30-35 DEG C at settle 1-2 hours, lubricating oil is heated to 60-65 again afterwards
DEG C, then settle 1-1.5 hours, it is cooled to 30-35 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 70-76 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution
It is 70-73%, addition volume is 80-90L, is persistently stirred 30-32 hours；
Step 3,0.1-0.3 DEG C/min speed decline warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 85-
88 DEG C, then to alchlor is added in edible vegetable oil, the addition of alchlor is the 0.04-0.08% of edible vegetable oil weight, lasting stirring
40-46 minutes；Sodium hydroxide solution is added, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred
Mix 13 minutes；And during sodium hydroxide solution is added, be passed through oxygen, oxygen be passed through speed for 0.1-0.2 cubic metres/
Minute, after stopping adding sodium hydroxide solution, continuing to be passed through oxygen 40-50 minutes, oxygen is passed through speed for 0.05-0.09 is vertical
Square m/min；
Step 4, additive is added, the addition of additive is the 0.1- of the edible vegetable oil weight obtained by step 3
0.3%, the additive includes polymethylacrylic acid；
Step 5, it is cooled to room temperature with 0.6-0.8 DEG C/min.
Preferably, in the reuse method of described waste lubrication oil, in the step one, lubricating oil is heated to 30
Settled 1 hour at DEG C, centrifugation.
Preferably, in the reuse method of described waste lubrication oil, in the step 2, lubricating oil is warming up to 70
DEG C, sodium hydroxide solution is added, the mass concentration of sodium hydroxide solution is 70%, and addition volume is 80L, persistently stirs 30 small
When.
Preferably, in the reuse method of described waste lubrication oil, in the step 3, in 0.3 DEG C/min of speed
Degree decline is warmed to room temperature, and takes upper strata edible vegetable oil, and edible vegetable oil is heated into 88 DEG C, then to adding alchlor in edible vegetable oil, alchlor
Addition is the 0.08% of edible vegetable oil weight, is persistently stirred 46 minutes.
Preferably, in the reuse method of described waste lubrication oil, in the step 4, additive is added, is added
Plus 0.3% that the addition of agent is the edible vegetable oil weight obtained by step 3.
Preferably, in the reuse method of described waste lubrication oil, the additive also includes di hexichol
Amine, wherein, the mass ratio of dialkylated diphenylamine and polymethacrylates is 3:2.
Preferably, in the reuse method of described waste lubrication oil, room temperature is cooled to 0.8 DEG C/min.
The reuse method of waste lubrication oil of the present invention improves regeneration technology parameters, so as to improve again
Raw efficiency and quality, the indices of the lubricating oil that regeneration is obtained are very excellent, the need for disclosure satisfy that normal production.
Specific embodiment
The present invention is described in further detail below, with make those skilled in the art with reference to specification word being capable of evidence
To implement.
The present invention provides a kind of reuse method of waste lubrication oil, it is characterised in that including：
Step one, lubricating oil is heated to 30-35 DEG C at settle 1-2 hours, lubricating oil is heated to 60-65 again afterwards
DEG C, then settle 1-1.5 hours, it is cooled to 30-35 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 70-76 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution
It is 70-73%, addition volume is 80-90L, is persistently stirred 30-32 hours；
Step 3,0.1-0.3 DEG C/min speed decline warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 85-
88 DEG C, then to alchlor is added in edible vegetable oil, the addition of alchlor is the 0.04-0.08% of edible vegetable oil weight, lasting stirring
40-46 minutes；Sodium hydroxide solution is added, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred
Mix 13 minutes；And during sodium hydroxide solution is added, be passed through oxygen, oxygen be passed through speed for 0.1-0.2 cubic metres/
Minute, after stopping adding sodium hydroxide solution, continuing to be passed through oxygen 40-50 minutes, oxygen is passed through speed for 0.05-0.09 is vertical
Square m/min；
Step 4, additive is added, the addition of additive is the 0.1- of the edible vegetable oil weight obtained by step 3
0.3%, the additive includes polymethylacrylic acid；
Step 5, it is cooled to room temperature with 0.6-0.8 DEG C/min.
The reuse method of waste lubrication oil of the present invention improves regeneration technology parameters, so as to improve again
Raw efficiency and quality, the indices of the lubricating oil that regeneration is obtained are very excellent, the need for disclosure satisfy that normal production.Again
Residual carbon content 0.38% in oil generation, content of ashes is 0.0012%, and content of impurities is 0.012%, and flash-point is 231
DEG C, indices are close to fresh oil.
Preferably, in the reuse method of described waste lubrication oil, in the step one, lubricating oil is heated to 30
Settled 1 hour at DEG C, centrifugation.
Preferably, in the reuse method of described waste lubrication oil, in the step 2, lubricating oil is warming up to 70
DEG C, sodium hydroxide solution is added, the mass concentration of sodium hydroxide solution is 70%, and addition volume is 80L, persistently stirs 30 small
When.
Preferably, in the reuse method of described waste lubrication oil, in the step 3, in 0.3 DEG C/min of speed
Degree decline is warmed to room temperature, and takes upper strata edible vegetable oil, and edible vegetable oil is heated into 88 DEG C, then to adding alchlor in edible vegetable oil, alchlor
Addition is the 0.08% of edible vegetable oil weight, is persistently stirred 46 minutes.
Preferably, in the reuse method of described waste lubrication oil, in the step 4, additive is added, is added
Plus 0.3% that the addition of agent is the edible vegetable oil weight obtained by step 3.
Preferably, in the reuse method of described waste lubrication oil, the additive also includes di hexichol
Amine, wherein, the mass ratio of dialkylated diphenylamine and polymethacrylates is 3:2.
Preferably, in the reuse method of described waste lubrication oil, room temperature is cooled to 0.8 DEG C/min.
Embodiment one
Step one, lubricating oil is heated to 30 DEG C at settle 1 hour, lubricating oil is heated to 65 DEG C again afterwards, then settle
1.5 hours, it is cooled to 35 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 70 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution is
70%, addition volume is 80L, is persistently stirred 30 hours；
Step 3, decline in 0.1 DEG C/min of speed and warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 85 DEG C, then
To alchlor is added in edible vegetable oil, the addition of alchlor is the 0.04% of edible vegetable oil weight, is persistently stirred 40 minutes；Add
Sodium hydroxide solution, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred 13 minutes；And
During adding sodium hydroxide solution, oxygen is passed through, oxygen is passed through speed for 0.2 cubic meters per minute, is stopping adding hydrogen-oxygen
After changing sodium solution, continue to be passed through oxygen 50 minutes, oxygen is passed through speed for 0.09 cubic meters per minute；
Step 4, additive is added, the addition of additive is 0.1% of the edible vegetable oil weight obtained by step 3, institute
Stating additive includes polymethylacrylic acid.
Step 5, it is cooled to room temperature with 0.6 DEG C/min.
Embodiment two
Step one, lubricating oil is heated to 35 DEG C at settle 2 hours, lubricating oil is heated to 65 DEG C again afterwards, then settle
1.5 hours, it is cooled to 35 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 76 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution is
73%, addition volume is 90L, is persistently stirred 32 hours；
Step 3, decline in 0.3 DEG C/min of speed and warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 88 DEG C, then
To alchlor is added in edible vegetable oil, the addition of alchlor is the 0.08% of edible vegetable oil weight, is persistently stirred 46 minutes；Add
Sodium hydroxide solution, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred 13 minutes；And
During adding sodium hydroxide solution, oxygen is passed through, oxygen is passed through speed for 0.2 cubic meters per minute, is stopping adding hydrogen-oxygen
After changing sodium solution, continue to be passed through oxygen 50 minutes, oxygen is passed through speed for 0.09 cubic meters per minute；
Step 4, additive is added, the addition of additive is 0.3% of the edible vegetable oil weight obtained by step 3, institute
Stating additive includes polymethylacrylic acid.
Step 5, it is cooled to room temperature with 0.8 DEG C/min.
Embodiment three
Step one, lubricating oil is heated to 33 DEG C at settle 1 hour, lubricating oil is heated to 60 DEG C again afterwards, then settle 1
Hour, it is cooled to 30 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 73 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution is
70%, addition volume is 80L, is persistently stirred 30 hours；
Step 3, decline in 0.1 DEG C/min of speed and warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 85 DEG C, then
To alchlor is added in edible vegetable oil, the addition of alchlor is the 0.06% of edible vegetable oil weight, is persistently stirred 40 minutes；Add
Sodium hydroxide solution, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred 13 minutes；And
During adding sodium hydroxide solution, oxygen is passed through, oxygen is passed through speed for 0.2 cubic meters per minute, is stopping adding hydrogen-oxygen
After changing sodium solution, continue to be passed through oxygen 50 minutes, oxygen is passed through speed for 0.09 cubic meters per minute；
Step 4, additive is added, the addition of additive is 0.1% of the edible vegetable oil weight obtained by step 3, institute
Stating additive includes polymethylacrylic acid.
Step 5, it is cooled to room temperature with 0.6 DEG C/min.
Example IV
Step one, lubricating oil is heated to 35 DEG C at settle 2 hours, lubricating oil is heated to 65 DEG C again afterwards, then settle
1.5 hours, it is cooled to 35 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 76 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution is
70%, addition volume is 87L, is persistently stirred 30 hours；
Step 3, decline in 0.1 DEG C/min of speed and warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 85 DEG C, then
To alchlor is added in edible vegetable oil, the addition of alchlor is the 0.06% of edible vegetable oil weight, is persistently stirred 44 minutes；Add
Sodium hydroxide solution, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred 13 minutes；And
During adding sodium hydroxide solution, oxygen is passed through, oxygen is passed through speed for 0.2 cubic meters per minute, is stopping adding hydrogen-oxygen
After changing sodium solution, continue to be passed through oxygen 50 minutes, oxygen is passed through speed for 0.09 cubic meters per minute；
Step 4, additive is added, the addition of additive is 0.1% of the edible vegetable oil weight obtained by step 3, institute
Stating additive includes polymethylacrylic acid.
Step 5, it is cooled to room temperature with 0.6 DEG C/min.
Embodiment five
Step one, lubricating oil is heated to 35 DEG C at settle 2 hours, lubricating oil is heated to 65 DEG C again afterwards, then settle
1.5 hours, it is cooled to 35 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 76 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution is
73%, addition volume is 90L, is persistently stirred 31 hours；
Step 3, decline in 0.2 DEG C/min of speed and warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 85 DEG C, then
To alchlor is added in edible vegetable oil, the addition of alchlor is the 0.04% of edible vegetable oil weight, is persistently stirred 43 minutes；Add
Sodium hydroxide solution, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred 13 minutes；And
During adding sodium hydroxide solution, oxygen is passed through, oxygen is passed through speed for 0.1 cubic meters per minute, is stopping adding hydrogen-oxygen
After changing sodium solution, continue to be passed through oxygen 40 minutes, oxygen is passed through speed for 0.05 cubic meters per minute；
Step 4, additive is added, the addition of additive is 0.1% of the edible vegetable oil weight obtained by step 3, institute
Stating additive includes polymethylacrylic acid.
Step 5, it is cooled to room temperature with 0.6 DEG C/min.
Embodiment six
Step one, lubricating oil is heated to 35 DEG C at settle 2 hours, lubricating oil is heated to 65 DEG C again afterwards, then settle
1.5 hours, it is cooled to 35 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 73 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution is
71%, addition volume is 83L, is persistently stirred 30 hours；
Step 3, decline in 0.3 DEG C/min of speed and warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 88 DEG C, then
To alchlor is added in edible vegetable oil, the addition of alchlor is the 0.06% of edible vegetable oil weight, is persistently stirred 41 minutes；Add
Sodium hydroxide solution, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred 13 minutes；And
During adding sodium hydroxide solution, oxygen is passed through, oxygen is passed through speed for 0.1 cubic meters per minute, is stopping adding hydrogen-oxygen
After changing sodium solution, continue to be passed through oxygen 40 minutes, oxygen is passed through speed for 0.05 cubic meters per minute；
Step 4, additive is added, the addition of additive is 0.15% of the edible vegetable oil weight obtained by step 3, institute
Stating additive includes polymethylacrylic acid.
Step 5, it is cooled to room temperature with 0.7 DEG C/min.
Embodiment seven
Step one, lubricating oil is heated to 31 DEG C at settle 1.5 hours, lubricating oil is heated to 60 DEG C again afterwards, then sink
Drop 1 hour, is cooled to 30 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 72 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution is
73%, addition volume is 90L, is persistently stirred 31 hours；
Step 3, decline in 0.1 DEG C/min of speed and warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 87 DEG C, then
To alchlor is added in edible vegetable oil, the addition of alchlor is the 0.08% of edible vegetable oil weight, is persistently stirred 45 minutes；Add
Sodium hydroxide solution, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred 13 minutes；And
During adding sodium hydroxide solution, oxygen is passed through, oxygen is passed through speed for 0.2 cubic meters per minute, is stopping adding hydrogen-oxygen
After changing sodium solution, continue to be passed through oxygen 50 minutes, oxygen is passed through speed for 0.09 cubic meters per minute；
Step 4, additive is added, the addition of additive is 0.3% of the edible vegetable oil weight obtained by step 3, institute
Additive is stated including polymethylacrylic acid dialkylated diphenylamine, wherein, dialkylated diphenylamine and polymethacrylates
Mass ratio is 3:2；
Step 5, it is cooled to room temperature with 0.7 DEG C/min.
Embodiment eight
Step one, lubricating oil is heated to 35 DEG C at settle 2 hours, lubricating oil is heated to 65 DEG C again afterwards, then settle
1.5 hours, it is cooled to 35 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 74 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution is
72%, addition volume is 88L, is persistently stirred 30 hours；
Step 3, decline in 0.3 DEG C/min of speed and warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 85 DEG C, then
To alchlor is added in edible vegetable oil, the addition of alchlor is the 0.04% of edible vegetable oil weight, is persistently stirred 45 minutes；Add
Sodium hydroxide solution, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred 13 minutes；And
During adding sodium hydroxide solution, oxygen is passed through, oxygen is passed through speed for 0.2 cubic meters per minute, is stopping adding hydrogen-oxygen
After changing sodium solution, continue to be passed through oxygen 50 minutes, oxygen is passed through speed for 0.09 cubic meters per minute；
Step 4, additive is added, the addition of additive is 0.1% of the edible vegetable oil weight obtained by step 3, institute
Additive is stated including polymethylacrylic acid dialkylated diphenylamine, wherein, dialkylated diphenylamine and polymethacrylates
Mass ratio is 3:2；
Step 5, it is cooled to room temperature with 0.6-0.8 DEG C/min.
Embodiment nine
Step one, lubricating oil is heated to 30 DEG C at settle 2 hours, lubricating oil is heated to 65 DEG C again afterwards, then settle
1.5 hours, it is cooled to 35 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 74 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution is
72%, addition volume is 88L, is persistently stirred 30 hours；
Step 3, decline in 0.1 DEG C/min of speed and warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 85 DEG C, then
To alchlor is added in edible vegetable oil, the addition of alchlor is the 0.04% of edible vegetable oil weight, is persistently stirred 45 minutes；Add
Sodium hydroxide solution, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred 13 minutes；And
During adding sodium hydroxide solution, oxygen is passed through, oxygen is passed through speed for 0.2 cubic meters per minute, is stopping adding hydrogen-oxygen
After changing sodium solution, continue to be passed through oxygen 50 minutes, oxygen is passed through speed for 0.09 cubic meters per minute；
Step 4, additive is added, the addition of additive is 0.1% of the edible vegetable oil weight obtained by step 3, institute
Additive is stated including polymethylacrylic acid dialkylated diphenylamine, wherein, dialkylated diphenylamine and polymethacrylates
Mass ratio is 3:2；
Step 5, it is cooled to room temperature with 0.6-0.8 DEG C/min.
Embodiment ten
Step one, lubricating oil is heated to 35 DEG C at settle 2 hours, lubricating oil is heated to 60 DEG C again afterwards, then settle 1
Hour, it is cooled to 30 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 76 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution is
72%, addition volume is 88L, is persistently stirred 30 hours；
Step 3, decline in 0.3 DEG C/min of speed and warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 85 DEG C, then
To alchlor is added in edible vegetable oil, the addition of alchlor is the 0.07% of edible vegetable oil weight, is persistently stirred 45 minutes；Add
Sodium hydroxide solution, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, is persistently stirred 13 minutes；And
During adding sodium hydroxide solution, oxygen is passed through, oxygen is passed through speed for 0.1 cubic meters per minute, is stopping adding hydrogen-oxygen
After changing sodium solution, continue to be passed through oxygen 40 minutes, oxygen is passed through speed for 0.05 cubic meters per minute；
Step 4, additive is added, the addition of additive is 0.1% of the edible vegetable oil weight obtained by step 3, institute
Additive is stated including polymethylacrylic acid dialkylated diphenylamine, wherein, dialkylated diphenylamine and polymethacrylates
Mass ratio is 3:2；
Step 5, it is cooled to room temperature with 0.6-0.8 DEG C/min.
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in specification and implementation method
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details.
Claims (7)
1. a kind of reuse method of waste lubrication oil, it is characterised in that including：
Step one, lubricating oil is heated to 30-35 DEG C at settle 1-2 hours, lubricating oil is heated to 60-65 DEG C again afterwards, then
Sedimentation 1-1.5 hours, is cooled to 30-35 DEG C, centrifugation again afterwards；
Step 2, lubricating oil is warming up to 70-76 DEG C, adds sodium hydroxide solution, the mass concentration of sodium hydroxide solution is 70-
73%, addition volume is 80-90L, is persistently stirred 30-32 hours；
Step 3,0.1-0.3 DEG C/min speed decline warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 85-88 DEG C,
Again to alchlor is added in edible vegetable oil, the addition of alchlor is the 0.04-0.08% of edible vegetable oil weight, persistently stirs 40-46
Minute；Sodium hydroxide solution is added, the mass concentration of sodium hydroxide solution is 20%, and addition volume is 5L, persistently stirs 13
Minute；And during sodium hydroxide solution is added, oxygen is passed through, oxygen is passed through speed for 0.1-0.2 cubes m/min
Clock, after stopping adding sodium hydroxide solution, continues to be passed through oxygen 40-50 minutes, and oxygen is passed through speed for 0.05-0.09 cubes
M/min；
Step 4, additive is added, the addition of additive is the 0.1-0.3% of the edible vegetable oil weight obtained by step 3, institute
Stating additive includes polymethylacrylic acid；
Step 5, it is cooled to room temperature with 0.6-0.8 DEG C/min.
2. the reuse method of waste lubrication oil as claimed in claim 1, it is characterised in that in the step one, will lubricate
Oil is settled 1 hour at being heated to 30 DEG C, centrifugation.
3. the reuse method of waste lubrication oil as claimed in claim 1, it is characterised in that in the step 2, will lubricate
Oil is warming up to 70 DEG C, adds sodium hydroxide solution, and the concentration of sodium hydroxide solution is 70%, and addition volume is 80L, lasting stirring
30 hours.
4. the reuse method of waste lubrication oil as claimed in claim 1, it is characterised in that in the step 3,0.3
DEG C/min speed decline and warm to room temperature, take upper strata edible vegetable oil, edible vegetable oil is heated to 88 DEG C, then to adding alchlor in edible vegetable oil,
The addition of alchlor is the 0.08% of edible vegetable oil weight, is persistently stirred 46 minutes.
5. the reuse method of waste lubrication oil as claimed in claim 1, it is characterised in that in the step 4, add
Additive, the addition of additive is 0.3% of the edible vegetable oil weight obtained by step 3.
6. the reuse method of waste lubrication oil as claimed in claim 1, it is characterised in that the additive also includes dioxane
Base diphenylamines, wherein, the mass ratio of dialkylated diphenylamine and polymethacrylates is 3:2.
7. the reuse method of waste lubrication oil as claimed in claim 1, it is characterised in that be cooled to room with 0.8 DEG C/min
Temperature.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108467775A (en) * | 2018-06-06 | 2018-08-31 | 长春工程学院 | Low-level oxidation method waste machine oil regeneration device and regeneration technology |
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| CN108467775B (en) * | 2018-06-06 | 2023-09-12 | 长春工程学院 | Waste engine oil regeneration device and regeneration process by micro-oxidation method |
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