CN105176661B - A kind of diesel engine oil and preparation method thereof - Google Patents
A kind of diesel engine oil and preparation method thereof Download PDFInfo
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- CN105176661B CN105176661B CN201510536408.5A CN201510536408A CN105176661B CN 105176661 B CN105176661 B CN 105176661B CN 201510536408 A CN201510536408 A CN 201510536408A CN 105176661 B CN105176661 B CN 105176661B
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- 239000010710 diesel engine oil Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000003921 oil Substances 0.000 claims abstract description 50
- 238000004062 sedimentation Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000002480 mineral oil Substances 0.000 claims abstract description 13
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000000654 additive Substances 0.000 claims abstract description 6
- 230000000996 additive effect Effects 0.000 claims abstract description 5
- 239000010721 machine oil Substances 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000011049 filling Methods 0.000 claims abstract description 3
- 230000018044 dehydration Effects 0.000 claims abstract 3
- 238000006297 dehydration reaction Methods 0.000 claims abstract 3
- 238000004821 distillation Methods 0.000 claims abstract 3
- 238000001914 filtration Methods 0.000 claims abstract 3
- 238000001179 sorption measurement Methods 0.000 claims abstract 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract 2
- 239000011707 mineral Substances 0.000 claims abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 238000003756 stirring Methods 0.000 claims description 13
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000344 soap Substances 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 239000013530 defoamer Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 229920013639 polyalphaolefin Polymers 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 230000001476 alcoholic effect Effects 0.000 claims description 2
- 230000000994 depressogenic effect Effects 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 229920000742 Cotton Polymers 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000002518 antifoaming agent Substances 0.000 claims 1
- JZZIHCLFHIXETF-UHFFFAOYSA-N dimethylsilicon Chemical compound C[Si]C JZZIHCLFHIXETF-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000012958 reprocessing Methods 0.000 abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 239000002283 diesel fuel Substances 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 229940008099 dimethicone Drugs 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Lubricants (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The invention discloses a kind of preparation method of diesel engine oil, including：Make to subtract third fractional oil raw material fully to react in sedimentation kettle with chemical solution；By the top clarified oil obtained by reaction after mineral fibres filter adsorption filtration, it is pumped into distillation still, moisture contained in the clarified oil of top is deviate from by vacuum kettle vacuum；After vacuum dehydration is completed, atlapulgite is sucked into vacuum kettle from vacuum kettle lower vacuum, with the material reaction in vacuum kettle, after reaction, turn off vacuum system emptying vacuum kettle, be pumped into filter press, finally give the refined mineral oil oil plant in blended diesel machine oil；By resulting refined mineral oil oil plant, it is pumped into blending kettle, sequentially adds additive；The thick finished product of new diesel engine oil is obtained, after testing after qualified, is filtered through stainless steel bag filter, it is filling to get product diesel engine oil.The inventive method, by reprocessing, obtains best in quality, cheap diesel engine oil using cheap mineral oil as raw material.
Description
Technical field
The present invention relates to derv fuel machine oil field, in particular it relates to which one kind re-refines readymade oil processing and preparation method.
Background technology
Diesel engine oil is an important branch of automobile oil, and diesel engine belongs to compression ignition engine.Diesel engine is used
The method of compressed air improves the self-ignition point that air themperature exceedes diesel oil, and diesel oil, diesel oil mist and air mixing are at this moment sprayed into again
While oneself ignition.Diesel engine is compared with gasoline engine, and the thermal efficiency is high first, and fuel economy is good, can be used
Inexpensive heavy oil.The consumption rate of fuel oil is low, and secondly power and the range of speeds are big, and the feature of environmental protection is good, CO2 emissions and gasoline
Machine is low by 30%~35% compared to being more about.Therefore application field is extensive, so the demand of diesel engine oil is growing therewith.
China becomes a net import of oil state since nineteen ninety-five, and import volume constantly rises, and has surmounted Japan, has turned into
World's second largest oil importers.Multidigit expert represents, it is contemplated that perhaps the petroleum import total amount of China can surmount after 4 to 5 years
The U.S., as the first big net import of oil state.Domestic consumption of petroleum excessive velocities, domestic petroleum keeps stable yields to be increasingly stranded
Difficulty, and China is the country of petroleum resources scarcity relatively, and various reasons cause domestic price of oil going up sky-high, shortage of resources and high speed
The need for growth, the contradiction that can not be reconciled is formed, and the vehicle for developing rapidly the country with the economy of China is increasingly popularized, and
Each car travels 5000~7000 kilometers and is accomplished by changing an engine oil, is used as a kind of necessary consumer goods, diesel engine oil
Be in great demand.
Diesel engine market is based on middle-grade diesel engine, from the point of view of market scale, pickup truck automobile oil market scale
Account for the 15.3% of the automobile oil total market size；From the point of view of the growth potential of market, interior pickup truck automobile oil city in recent years
The growth rate of field scale is held in more than 10%, and automobile oil market scale, which increases in total amount, every year on average has about 17.8% to be
Realized by the growth of pickup truck automobile oil market scale.Under the stimulation of a series of policy, the guarantor of pickup truck
The amount of having has certain accelerated development, but diesel engine oil holds at high price, and that consumer products price may be selected in consumer is empty
Between it is smaller, so exploitation is a kind of best in quality, cheap diesel engine oil also becomes extremely urgent thing.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of preparation method of diesel engine oil, and this method is with cheap
Mineral oil is raw material, by reprocessing, obtains best in quality, cheap diesel engine oil.Whole process is pollution-free, yield
Height, by reprocessing, the diesel engine oil concocted has a good high temperature antioxidant, anti-rotten and wear and tear and control deposit
Formed.
The present invention solves the technical scheme that is used of above-mentioned technical problem：A kind of preparation method of diesel engine oil, including
Following steps：
Step A, prepares chemical solution：1. mass concentration containing NaOH is 3% aqueous solution；2. mass concentration is more than 95%
Ethanol solution；
Step B, makes the pending third fractional oil raw material that subtracts be chemically reacted in sedimentation kettle；It is described reaction specific steps according to
It is secondary including：1. the pending third fractional oil raw material that subtracts is pumped into sedimentation kettle first, it is heavy that then ethanol solution described in step A is pumped into
Drop in kettle and open stirring, while starting heating to material, when temperature rises to 60~70 DEG C, by mass concentration described in step A
Added for the 3% NaOH aqueous solution with spraying mode into the material of the sedimentation kettle, when the material reacts in sedimentation kettle
When playing soap flocculation, when the pH value of material is 8~9 in detection sedimentation kettle, stop adding the NaOH aqueous solution；2. when the sedimentation kettle liter
After warm to 90 DEG C, stop heating, reaction stops stirring after 0.5~1 hour；3. insulation carries out gravitational settling；Sedimentation time 8~10
Hour, after after the breakdown of oil of top, obtaining the precipitum of bottom and the clarified oil on top；The precipitum main component is water-soluble
The organic matter soaps of property；
Step C, the bottom precipitum obtained by the step B is led by settling the pipeline of kettle bottom from sedimentation kettle
Go out, gained top clarified oil is retained in inside sedimentation kettle；
Step D, by gained top clarified oil after mineral fibres filter adsorption filtration, is pumped into distillation still, by true
Contained moisture in empty kettle vacuum abjection top clarified oil；Comprise the following steps that：It is pumped into distillation still and opens stirring, heating system
System and vacuum system, make under stirring, temperature is heated up within the scope of 90 DEG C~150 DEG C, vacuum >=0.09Mpa conditions
Under, vacuum dehydration 0.5~1 hour is carried out to the material after the adsorption filtration；After vacuum dehydration is completed, under vacuum kettle
Portion vacuum sucks atlapulgite into vacuum kettle, with the material reaction 0.5~1 hour in vacuum kettle；Fully after reaction, turn off
Vacuum system is vented vacuum kettle, is pumped into filter press, finally gives the refined mineral oil oil plant in blended diesel machine oil；
Step E, resulting refined mineral oil oil plant is pumped into blending kettle, following additive is sequentially added：Viscosity refers to
Number modifier, pour-point depressant, dispersant and defoamer；
The additive is added to the thick finished product that new diesel engine oil is obtained after completing successively, after testing after qualified,
Filtered through stainless steel bag filter, it is filling to get product diesel engine oil.
In further technical scheme, in the step E, the suction amount of the refined mineral oil oil plant is the diesel engine
The 92.49% of oily thick finished product.
It is described additive to comprise the following steps that in the step E in further technical scheme：1. by step D
Resulting refined mineral oil oil plant is pumped into blending kettle, opens stirring, and speed of agitator is 90 revs/min, is heated up to 90 DEG C；2. plus
Enter 5% viscosity index improver ethylene-propylene copolymer of gross mass, stir 5~10 minutes；2. 0.5% T803 of gross mass is added
Polyalphaolefin pour-point depressant, is stirred 5~10 minutes,；3. 2% T154B- boric acid salt form ashless dispersants of gross mass, stirring are added
5~10 minutes；4. 0.01% Dimethicone defoamer of gross mass is added, is stirred 5~10 minutes.
Viscosity index improver ethylene-propylene copolymer is added to can be very good to improve the viscosity index (VI) of mineral oil and gluing smoothly
Warm curve, can obtain that cold starting performance is good, under high temperature and can keep the multi-grade oil of proper viscosity, improve the property of mineral oil oil plant
Can, lubricating oil class is lifted, extends Working Life of Lubricating Oil.T803 polyalphaolefin pour-point depressants, can improve the low temperature stream of mineral oil
Dynamic property and pour point, make oil product all-season.Add T154B- boric acid salt form ashless dispersants can improve low temperature greasy filth dispersiveness,
Outside high-temperature thermal oxidation stability, the solubilising to cigarette ash and certain alkaline reserve ability, but significantly improve load capacity and
Wear-resistant, antifriction performance, further improves antioxidant, detergency, anticorrosive property.Dimethicone defoamer suds power is strong.
In further technical scheme, in the step D, the addition of atlapulgite is：One cube subtracts third fractional oil raw material
Add 25 kilograms of carclazytes.
The present invention compared with prior art, has the following advantages that：
(1) the inventive method, by reprocessing, obtains best in quality using cheap mineral oil as raw material, cheap
Diesel engine oil.Whole process is pollution-free, high income, and by reprocessing, the diesel engine oil concocted has good high temperature
Antioxidant, anti-rotten and abrasion and the formation of control deposit.
(2) it is produced by the invention to refine oil based on readymade oil again, coordinate a kind of bavin obtained by various lube oil additives
Oil machine oil, its cost is significantly less than the diesel engine oil of like product, and quality can compare favourably with like product completely.This hair
Bright product is tasteless, nontoxic, with good applicable economy.By the refined readymade oil handled again, through ovennodulation, whether
Flash-point still compares on low temperature flow all to have great advantage with like products.
(3) preparation method of the present invention is not related to environmental issue, and reason is pollution-free mainly using the mode of production is recycled
Thing is produced.Base oil used in the raw material of the present invention, is to use the readymade oil after refining again for raw material, has not produced
Evil gas, non-wastewater discharge, no waste sludge discharge, the moisture that vacuum is deviate from can be recycled.So the mediation of the present invention, takes off
Water, is decolourized, and filters, packaging, and the processing link such as storage, no influence environmental contaminants are produced.
Embodiment
Content for a better understanding of the present invention, is described further with reference to specific embodiment.It should be understood that these
Embodiment is only used for that the present invention will be further described, rather than limitation the scope of the present invention.In addition, it is to be understood that reading
After content of the present invention, person skilled in art makes some nonessential changes or adjustment to the present invention, still falls within
Protection scope of the present invention.
Embodiment 1
A kind of diesel engine oil is prepared according to following steps：The pending third fractional oil raw material that subtracts is from oil refining described in embodiment 1
Factory's purchase.
Step A, prepares chemical solution：1. mass concentration containing NaOH is 3% aqueous solution；2. mass concentration is 95% second
Alcoholic solution.
Step B, makes the pending third fractional oil raw material that subtracts be chemically reacted in sedimentation kettle；It is described reaction specific steps according to
It is secondary including：1. subtract third fractional oil raw material by pending 1 cube first to be pumped into sedimentation kettle, then ethanol solution described in step A
It is pumped into sedimentation kettle and opens stirring, while starts heating to material, when temperature rises to 60~70 DEG C, by matter described in step A
Amount concentration is added into the material of the sedimentation kettle for the 3% NaOH aqueous solution with spraying mode, when the material is in sedimentation kettle
It is middle reacted soap flocculation when, detection sedimentation kettle in material pH value be 8~9 when, stop add the NaOH aqueous solution；2. when described heavy
Drop kettle is warming up to after 90 DEG C, stops heating, and reaction stops stirring after 0.5~1 hour；3. insulation carries out gravitational settling；During sedimentation
Between 8~10 hours, after after the breakdown of oil of top, obtaining the precipitum of bottom and the clarified oil on top；The precipitum it is main into
It is divided into water miscible organic matter soaps.
Step C, the bottom precipitum obtained by the step B is led by settling the pipeline of kettle bottom from sedimentation kettle
Go out, gained top clarified oil is retained in inside sedimentation kettle.
Step D, by gained top clarified oil after mineral fibres filter adsorption filtration, is pumped into distillation still, by true
Contained moisture in empty kettle vacuum abjection top clarified oil；Comprise the following steps that：It is pumped into distillation still and opens stirring, heating system
System and vacuum system, make under stirring, temperature is heated up within the scope of 90 DEG C~150 DEG C, vacuum >=0.09Mpa conditions
Under, vacuum dehydration 0.5~1 hour is carried out to the material after the adsorption filtration；After vacuum dehydration is completed, under vacuum kettle
Portion vacuum sucks 25 kilograms of atlapulgites into vacuum kettle, with the material reaction 0.5~1 hour in vacuum kettle；Fully react it
Afterwards, turn off vacuum system emptying vacuum kettle, be pumped into filter press, finally give the refined mineral oil oil in blended diesel machine oil
Material；
Step E, resulting refined mineral oil oil plant is pumped into blending kettle, following additive is sequentially added：Viscosity refers to
Number modifier, pour-point depressant, dispersant and defoamer；Comprise the following steps that：1. by the refined mineral oil oil plant pump obtained by step E
Enter in blending kettle, open stirring, speed of agitator is 90 revs/min, is heated up to 90 DEG C；2. the total matter of the thick finished product of the diesel engine oil is added
Measure 5% viscosity index improver " ethylene-propylene copolymer ", stir 5~10 minutes, make viscosity index improver " ethylene-propylene copolymer " with
Mineral oil oil plant is blended.2. 0.5% " T803 polyalphaolefins pour-point depressant " of the thick finished product gross mass of the diesel engine oil is added,
Stirring 5~10 minutes, blends the mineral oil oil plant in " T803 polyalphaolefins pour-point depressant " and blending kettle.3. the bavin is added
" the T154B- boric acid salt form ashless dispersant " of the thick finished product gross mass 2% of oil machine oil, stirs 5~10 minutes, makes " T154B- boric acid
Mineral oil oil plant in salt form ashless dispersant " and blending kettle is blended.4. the thick finished product gross mass of the diesel engine oil is added
0.01% " Dimethicone " defoamer, stirs 5~10 minutes, " Dimethicone " defoamer is substantially soluble in mineral oil
In oil plant.
The additive is added to the thick finished product that new diesel engine oil is obtained after completing successively, after testing after qualified,
Filtered through stainless steel bag filter, it is filling to get product diesel engine oil.
The finished diesel fuel machine oil main performance index of embodiment 1 is as follows：
As above, it just can be very good to realize the present invention.
Claims (5)
1. a kind of preparation method of diesel engine oil, it is characterised in that comprise the following steps：
Step A, prepares chemical solution：1. mass concentration containing NaOH is 3% aqueous solution；2. mass concentration is more than 95% second
Alcoholic solution；
Step B, makes the pending third fractional oil raw material that subtracts be chemically reacted in sedimentation kettle；The reaction specific steps are wrapped successively
Include：1. the pending third fractional oil raw material that subtracts is pumped into sedimentation kettle first, ethanol solution described in step A is then pumped into sedimentation kettle
In and open stirring, be 3% by mass concentration described in step A when temperature rises to 60~70 DEG C while starting heating to material
The NaOH aqueous solution with spray mode add to it is described sedimentation kettle material in, when the material sedimentation kettle in react soap wad a quilt with cotton
When solidifying, when the pH value of material is 8~9 in detection sedimentation kettle, stop adding the NaOH aqueous solution；2. when the sedimentation kettle is warming up to 90
After DEG C, stop heating, reaction stops stirring after 0.5~1 hour；3. insulation carries out gravitational settling；8~10 hours sedimentation times,
After after the breakdown of oil of top, obtaining the precipitum of bottom and the clarified oil on top；
Step C, the bottom precipitum obtained by the step B is exported by settling the pipeline of kettle bottom from sedimentation kettle, will
Gained top clarified oil is retained in inside sedimentation kettle；
Step D, by gained top clarified oil after mineral fibres filter adsorption filtration, is pumped into distillation still, passes through vacuum kettle
Contained moisture in vacuum abjection top clarified oil；Comprise the following steps that：Be pumped into distillation still open stirring, heating system and
Vacuum system, makes under stirring, and temperature is heated up within the scope of 90 DEG C~150 DEG C, under the conditions of vacuum >=0.09Mpa,
Vacuum dehydration 0.5~1 hour is carried out to the material after the adsorption filtration；After vacuum dehydration is completed, from vacuum kettle bottom
Vacuum sucks atlapulgite into vacuum kettle, with the material reaction 0.5~1 hour in vacuum kettle；Fully after reaction, turn off true
Empty set system emptying vacuum kettle, is pumped into filter press, finally gives the refined mineral oil oil plant in blended diesel machine oil；
Step E, resulting refined mineral oil oil plant is pumped into blending kettle, following additive is sequentially added：Viscosity index (VI) changes
Enter agent, pour-point depressant, dispersant and defoamer；
The additive is added to the thick finished product that new diesel engine oil is obtained after completing successively, after testing after qualified, through not
The steel bag filter that becomes rusty is filtered, filling to get product diesel engine oil.
2. the preparation method of a kind of diesel engine oil according to claim 1, it is characterised in that smart described in the step E
The suction amount of mineral oil oil plant processed is the 92.49% of the thick finished product of the diesel engine oil.
3. the preparation method of a kind of diesel engine oil according to claim 1, it is characterised in that described to add in the step E
Plus agent addition comprise the following steps that：1. the refined mineral oil oil plant obtained by step D is pumped into blending kettle, opens stirring,
Speed of agitator is 90 revs/min, is heated up to 90 DEG C；2. 5% viscosity index improver ethylene-propylene copolymer of gross mass, stirring are added
5~10 minutes；3. 0.5% T803 polyalphaolefin pour-point depressants of gross mass are added, are stirred 5~10 minutes；4. gross mass is added
2% T154B- boric acid salt form ashless dispersants, are stirred 5~10 minutes；5. 0.01% poly dimethyl silicon of gross mass is added
Ether defoaming agent, is stirred 5~10 minutes.
4. a kind of preparation method of diesel engine oil according to claim 1, it is characterised in that in the step D, activity is white
Soil addition be：One cube subtracts third fractional oil raw material and adds 25 kilograms of carclazytes.
5. a kind of diesel engine oil, is prepared using the claims any one methods described.
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| CN112029559A (en) * | 2020-08-20 | 2020-12-04 | 宁波蓝润能源科技股份有限公司 | Mineral base oil for preparing gas-liquid two-phase lubricant and preparation method thereof |
| CN113583710A (en) * | 2021-08-11 | 2021-11-02 | 磁悬浮润滑油(苏州)有限公司 | Preparation method of rubber softening oil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101414A (en) * | 1975-09-02 | 1978-07-18 | Unitech Chemical Inc. | Rerefining of used motor oils |
| CN103113956A (en) * | 2013-01-10 | 2013-05-22 | 无锡尚品石油有限公司 | Process for producing base oil of engine oil by tail oil of petroleum fraction oil |
| CN103242950A (en) * | 2013-05-20 | 2013-08-14 | 宁波市蓝润石化有限公司 | Pollution-free waste lubricating oil regeneration process |
| CN103666706A (en) * | 2013-12-25 | 2014-03-26 | 烟台德高石油有限公司 | Synthetic diesel engine oil and preparation method thereof |
-
2015
- 2015-08-27 CN CN201510536408.5A patent/CN105176661B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101414A (en) * | 1975-09-02 | 1978-07-18 | Unitech Chemical Inc. | Rerefining of used motor oils |
| CN103113956A (en) * | 2013-01-10 | 2013-05-22 | 无锡尚品石油有限公司 | Process for producing base oil of engine oil by tail oil of petroleum fraction oil |
| CN103242950A (en) * | 2013-05-20 | 2013-08-14 | 宁波市蓝润石化有限公司 | Pollution-free waste lubricating oil regeneration process |
| CN103666706A (en) * | 2013-12-25 | 2014-03-26 | 烟台德高石油有限公司 | Synthetic diesel engine oil and preparation method thereof |
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| CN105176661A (en) | 2015-12-23 |
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