CN102657959A - Acid sludge rapid sedimentation agent and method for refining basic lubrication oil of acid sludge rapid sedimentation agent - Google Patents
Acid sludge rapid sedimentation agent and method for refining basic lubrication oil of acid sludge rapid sedimentation agent Download PDFInfo
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- CN102657959A CN102657959A CN2012101470645A CN201210147064A CN102657959A CN 102657959 A CN102657959 A CN 102657959A CN 2012101470645 A CN2012101470645 A CN 2012101470645A CN 201210147064 A CN201210147064 A CN 201210147064A CN 102657959 A CN102657959 A CN 102657959A
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Abstract
The invention relates to a method for refining basic lubrication oil. The method comprises the following steps of: 1, keeping the temperature of the basic lubrication oil constant at 0 to 60 DEG C; and 2, feeding the constant-temperature basic lubrication oil into a pickling reaction kettle through a material feeding pump, and adding 92 to 98 percent of concentrated sulfuric acid with the mass which is 1 to 10 percent of the mass of the basic lubrication oil into the pickling reaction kettle at the speed of 3 to 10 kg/min through an acid feeding pump. Compared with the acid-alkaline white earth process, the method for refining the basic lubrication oil based on acid sludge rapid sedimentation is simpler, but the theories of the two processes are the same; the method is easy and convenient to operate; by using an acid sludge rapid sedimentation agent, acid sludge can be condensed rapidly; and therefore, the acid sludge sedimentation speed is increased, the production period is greatly shortened, and the quality of oil is improved.
Description
Technical field
The present invention relates to the purification techniques field of lube base oil, is the process for purification of agent of a kind of acid sludge rapid subsidence and lube base oil thereof.
Background technology
In present process for refining, the clay-filtered technology of soda acid is adopted because its input is lower widely, and the separative efficiency of acid sludge and oil product is the principal element of the whole process efficiency of influence in this technology.Present technology relies on the natural subsidence of acid sludge, separates not exclusively, and efficient is lower.Especially lower for the bigger base oil separative efficiency of viscosity.Be all the base oil process for refining and also have solvent refining, hydrofinishing, higher but these methods drop into; Process conditions are harsh, and the general medium-sized and small enterprises of difficult quilt adopt and implement, and the clay-filtered technology of soda acid satisfies the refining production of plain oil with base oil basically with its ultralow input; Receive the favor of a lot of medium-sized and small enterprises; But the clay-filtered complex technical process of soda acid, the production cycle is longer, and oil quality is lower.
Summary of the invention
The invention provides the process for purification of agent of a kind of acid sludge rapid subsidence and lube base oil thereof, overcome the deficiency of above-mentioned prior art, it can effectively solve the problem that the clay-filtered complex technical process of present soda acid, production cycle are long, oil quality is lower.
One of technical scheme of the present invention realizes through following measure: the agent of a kind of acid sludge rapid subsidence is the mixture of any three kinds of raw materials in monoethanolamine, diethanol amine, triethanolamine, the ethylenediamine, and the weight portion of every kind of raw material all is 20 parts to 50 parts.
Two of technical scheme of the present invention realizes through following measure: the agent of a kind of acid sludge rapid subsidence, it consists of by weight: 20 parts to 50 parts of monoethanolamines, 20 parts to 50 parts of diethanol amine, 20 parts to 50 parts of triethanolamines, 20 parts to 50 parts of ethylenediamines, 0 part to 50 parts in caustic soda, 0 part to 27 parts of waterglass.
Three of technical scheme of the present invention realizes through following measure: a kind of process for purification of lube base oil, undertaken by following step: the first step, with lube base oil at 0 to 60 ℃ of constant temperature; Second step; Lube base oil behind the constant temperature is added in the pickling agitated reactor with charge pump; When adding lube base oil; Use adds sour pump, and in the pickling agitated reactor, to add lube base oil quality 1% to 10%, concentration be 92% to 98% the concentrated sulfuric acid, and the speed that adds acid is 3kg/min-10 kg/min; The 3rd step; After the lube base oil and the concentrated sulfuric acid add completion, start the agitator of pickling agitated reactor, the lube base oil and the concentrated sulfuric acid are stirred; Speed of agitator is 30r/min to 60r/min; Mixing time is 30min to 60min, in whipping process, makes the lube base oil and the concentrated sulfuric acid carry out sufficient pickling reaction, begins to take shape acid sludge; The 4th step; After treating that the pickling reaction finishes, under the speed of agitator of 30r/min to 60r/min, the agent of acid sludge rapid subsidence is joined in the pickling agitated reactor, the addition of acid sludge rapid subsidence agent is 0.1% to 1% of a lube base oil quality; After the agent of acid sludge rapid subsidence adds completion; Under the speed of agitator of 20r/min to 50r/min, continue to stir 10min-90 min, make the rapid flocking settling of oil soluble impurity form acid sludge, acid sludge is separated with lube base oil fast; The 5th step, abandon acid sludge, upper strata bright stock base oil is delivered to thermostatic tank with discharging pump, constant temperature 8h to 24h gets final product under 50 ℃ to 60 ℃ conditions.
Four of technical scheme of the present invention realizes through following measure: a kind of process for purification of lube base oil, undertaken by following step: the first step, with lube base oil at 0 to 60 ℃ of constant temperature; Second step; Lube base oil behind the constant temperature is added in the pickling agitated reactor with charge pump; When adding lube base oil; Use adds sour pump, and in the pickling agitated reactor, to add lube base oil quality 1% to 10%, concentration be 92% to 98% the concentrated sulfuric acid, and the speed that adds acid is 3kg/min-10 kg/min; The 3rd step; After the lube base oil and the concentrated sulfuric acid add completion, start the agitator of pickling agitated reactor, the lube base oil and the concentrated sulfuric acid are stirred; Speed of agitator is 30r/min to 60r/min; Mixing time is 30min to 60min, in whipping process, makes the lube base oil and the concentrated sulfuric acid carry out sufficient pickling reaction, begins to take shape acid sludge; The 4th step; After treating that pickling reaction finishes, acid, oil mixture are left standstill 30min-60min, abandon acid sludge after making the acid sludge sedimentation; In the pickling agitated reactor, adding the agent of acid sludge rapid subsidence under the speed of agitator of 30r/min to 60r/min then; The addition of acid sludge rapid subsidence agent is 0.1% to 1% of a lube base oil quality, after the agent of acid sludge rapid subsidence adds completion, under the speed of agitator of 20r/min to 50r/min, continues to stir 10min-90 min; After stirring completion, the acid sludge of this moment is semi-solid dope; The 5th step, abandon acid sludge, upper strata bright stock base oil is delivered to thermostatic tank with discharging pump, constant temperature 8h to 24h gets final product under 50 ℃ to 60 ℃ conditions.
Be to the further optimization of foregoing invention technical scheme three or technical scheme four below or/and improve:
Above-mentioned lube base oil can be mineral base oil.
The present invention is the process for purification of agent of a kind of acid sludge rapid subsidence and lube base oil thereof, and this method is compared with soda acid carclazyte technology, and principle is identical but technology is simpler, and is easy to operation; Through the use of acid sludge rapid subsidence agent, acid sludge is condensed fast, accelerated the sinking speed of acid sludge; Shorten the production cycle greatly, separate thoroughly with oil product, oil content is low in the slag; The oil product yield is high, and color and stability are all significantly improved, and effectively promote oil quality.
Description of drawings
Accompanying drawing 1 is a process flow diagram of the present invention.
Coding in the accompanying drawing is respectively: 1 is charge pump, and 2 are the pickling agitated reactor, and 3 for adding sour pump, and 4 is agitator, and 5 is discharging pump, and 6 is thermostatic tank.
The specific embodiment
Further describe below in conjunction with embodiment and 1 couple of the present invention of accompanying drawing:
Embodiment 1: this acid sludge rapid subsidence agent is the mixture of any three kinds of raw materials in monoethanolamine, diethanol amine, triethanolamine, the ethylenediamine, and the weight portion of every kind of raw material all is 20 parts to 50 parts.
Embodiment 2: this acid sludge rapid subsidence agent is the mixture of monoethanolamine, diethanol amine, three kinds of raw materials of triethanolamine, and the weight portion of every kind of raw material all is 20 parts to 50 parts.
Embodiment 3: this acid sludge rapid subsidence agent is the mixture of monoethanolamine, diethanol amine, three kinds of raw materials of ethylenediamine, and the weight portion of every kind of raw material all is 20 parts to 50 parts.
Embodiment 4: this acid sludge rapid subsidence agent is the mixture of monoethanolamine, triethanolamine, three kinds of raw materials of ethylenediamine, and the weight portion of every kind of raw material all is 20 parts to 50 parts.
Embodiment 5: this acid sludge rapid subsidence agent is the mixture of diethanol amine, triethanolamine, three kinds of raw materials of ethylenediamine, and the weight portion of every kind of raw material all is 20 parts to 50 parts.
Embodiment 6: this acid sludge rapid subsidence agent consists of by weight: 20 parts to 50 parts of monoethanolamines, 20 parts to 50 parts of diethanol amine, 20 parts to 50 parts of triethanolamines, 20 parts to 50 parts of ethylenediamines, 0 part to 50 parts in caustic soda, 0 part to 27 parts of waterglass.
Embodiment 7: this acid sludge rapid subsidence agent consists of by weight: 0 part in 20 parts of 20 parts of 20 parts of 20 parts of monoethanolamines or 50 parts, diethanol amine or 50 parts, triethanolamines or 50 parts, ethylenediamines or 50 parts, caustic soda or 50 parts, 0 part or 27 parts of waterglass.
Embodiment 8: this acid sludge rapid subsidence agent consists of by weight: 35 parts of monoethanolamines, 35 parts of diethanol amine, 35 parts of triethanolamines, 35 parts of ethylenediamines, 25 parts in caustic soda, 13 parts of waterglass.
Embodiment 9: this acid sludge rapid subsidence agent consists of by weight: 20 parts of monoethanolamines, 50 parts of diethanol amine, 20 parts of triethanolamines, 50 parts of ethylenediamines, 27 parts of waterglass.
Embodiment 10: this acid sludge rapid subsidence agent consists of by weight: 50 parts of monoethanolamines, 20 parts of diethanol amine, 50 parts of triethanolamines, 20 parts of ethylenediamines, 50 parts in caustic soda.
The acid sludge rapid subsidence agent of the foregoing description 1 to embodiment 10 fully mixes needed raw material and obtains.
Used acid sludge rapid subsidence agent is any one acid sludge rapid subsidence agent of gained among the embodiment 1 to embodiment 10 among the following embodiment.
Embodiment 11: the process for purification of this lube base oil is undertaken by following step: the first step, with lube base oil at 0 to 60 ℃ of constant temperature; Second step; Lube base oil behind the constant temperature is added in the pickling agitated reactor 2 with charge pump 1; When adding lube base oil; Use adds sour pump 3, and in pickling agitated reactor 2, to add lube base oil quality 1% to 10%, concentration be 92% to 98% the concentrated sulfuric acid, and the speed that adds acid is 3kg/min-10 kg/min; The 3rd step; After the lube base oil and the concentrated sulfuric acid add completion, start the agitator 4 of pickling agitated reactor 2, the lube base oil and the concentrated sulfuric acid are stirred; Speed of agitator is 30r/min to 60r/min; Mixing time is 30min to 60min, in whipping process, makes the lube base oil and the concentrated sulfuric acid carry out sufficient pickling reaction, begins to take shape acid sludge; The 4th step; After treating that the pickling reaction finishes, under the speed of agitator of 30r/min to 60r/min, the agent of acid sludge rapid subsidence is joined in the pickling agitated reactor 2, the addition of acid sludge rapid subsidence agent is 0.1% to 1% of a lube base oil quality; After the agent of acid sludge rapid subsidence adds completion; Under the speed of agitator of 20r/min to 50r/min, continue to stir 10min-90 min, make the rapid flocking settling of oil soluble impurity form acid sludge, acid sludge is separated with lube base oil fast; The 5th step, abandon acid sludge, upper strata bright stock base oil is delivered to thermostatic tank 6 with discharging pump 5, constant temperature 8h to 24h gets final product under 50 ℃ to 60 ℃ conditions.
Embodiment 12: the process for purification of this lube base oil is undertaken by following step: the first step, with lube base oil at 0 or 60 ℃ of constant temperature; Second step; Lube base oil behind the constant temperature is added in the pickling agitated reactor 2 with charge pump 1; When adding lube base oil; Use adds sour pump 3, and in pickling agitated reactor 2, to add lube base oil quality 1% or 10%, concentration be 92% or 98% the concentrated sulfuric acid, and the speed that adds acid is 3kg/min or 10kg/min; The 3rd step; After the lube base oil and the concentrated sulfuric acid add completion, start the agitator 4 of pickling agitated reactor 2, the lube base oil and the concentrated sulfuric acid are stirred; Speed of agitator is 30r/min or 60r/min; Mixing time is 30min or 60min, in whipping process, makes the lube base oil and the concentrated sulfuric acid carry out sufficient pickling reaction, begins to take shape acid sludge; The 4th step; After treating that the pickling reaction finishes, under the speed of agitator of 30r/min or 60r/min, the agent of acid sludge rapid subsidence is joined in the pickling agitated reactor 2, the addition of acid sludge rapid subsidence agent is 0.1% or 1% of a lube base oil quality; After the agent of acid sludge rapid subsidence adds completion; Under the speed of agitator of 20r/min or 50r/min, continue to stir 10min or 90 min, make the rapid flocking settling of oil soluble impurity form acid sludge, acid sludge is separated with lube base oil fast; The 5th step, abandon acid sludge, upper strata bright stock base oil is delivered to thermostatic tank 6 with discharging pump 5, constant temperature 8h or 24h get final product under 50 ℃ or 60 ℃ of conditions.
Embodiment 13: the process for purification of this lube base oil is undertaken by following step: the first step, with lube base oil at 0 to 60 ℃ of constant temperature; Second step; Lube base oil behind the constant temperature is added in the pickling agitated reactor 2 with charge pump 1; When adding lube base oil; Use adds sour pump 3, and in pickling agitated reactor 2, to add lube base oil quality 1% to 10%, concentration be 92% to 98% the concentrated sulfuric acid, and the speed that adds acid is 3kg/min-10 kg/min; The 3rd step; After the lube base oil and the concentrated sulfuric acid add completion, start the agitator 4 of pickling agitated reactor 2, the lube base oil and the concentrated sulfuric acid are stirred; Speed of agitator is 30r/min to 60r/min; Mixing time is 30min to 60min, in whipping process, makes the lube base oil and the concentrated sulfuric acid carry out sufficient pickling reaction, begins to take shape acid sludge; The 4th step; After treating that pickling reaction finishes, acid, oil mixture are left standstill 30min-60min, abandon acid sludge after making the acid sludge sedimentation; In pickling agitated reactor 2, adding the agent of acid sludge rapid subsidence under the speed of agitator of 30r/min to 60r/min then; The addition of acid sludge rapid subsidence agent is 0.1% to 1% of a lube base oil quality, after the agent of acid sludge rapid subsidence adds completion, under the speed of agitator of 20r/min to 50r/min, continues to stir 10min-90 min; After stirring completion, the acid sludge of this moment is semi-solid dope; The 5th step, abandon acid sludge, upper strata bright stock base oil is delivered to thermostatic tank 6 with discharging pump 5, constant temperature 8h to 24h gets final product under 50 ℃ to 60 ℃ conditions.
Embodiment 14: the process for purification of this lube base oil is undertaken by following step: the first step, with lube base oil at 0 or 60 ℃ of constant temperature; Second step; Lube base oil behind the constant temperature is added in the pickling agitated reactor 2 with charge pump 1; When adding lube base oil; Use adds sour pump 3, and in pickling agitated reactor 2, to add lube base oil quality 1% or 10%, concentration be 92% or 98% the concentrated sulfuric acid, and the speed that adds acid is 3kg/min or 10 kg/min; The 3rd step; After the lube base oil and the concentrated sulfuric acid add completion, start the agitator 4 of pickling agitated reactor 2, the lube base oil and the concentrated sulfuric acid are stirred; Speed of agitator is 30r/min or 60r/min; Mixing time is 30min or 60min, in whipping process, makes the lube base oil and the concentrated sulfuric acid carry out sufficient pickling reaction, begins to take shape acid sludge; The 4th step; After treating that pickling reaction finishes, acid, oil mixture are left standstill 30min or 60min, abandon acid sludge after making the acid sludge sedimentation; In pickling agitated reactor 2, adding the agent of acid sludge rapid subsidence under the speed of agitator of 30r/min or 60r/min then; The addition of acid sludge rapid subsidence agent is 0.1% or 1% of a lube base oil quality, after the agent of acid sludge rapid subsidence adds completion, under the speed of agitator of 20r/min or 50r/min, continues to stir 10min or 90min; After stirring completion, the acid sludge of this moment is semi-solid dope; The 5th step, abandon acid sludge, upper strata bright stock base oil is delivered to thermostatic tank 6 with discharging pump 5, constant temperature 8h or 24h get final product under 50 ℃ or 60 ℃ of conditions.
Embodiment 15, and the process for purification of this lube base oil is undertaken by following step: the first step, with lube base oil at 40 ℃ of constant temperature; Second step; Lube base oil behind the constant temperature is added in the pickling agitated reactor 2 with charge pump 1; When adding lube base oil, use to add sour pump 3 in pickling agitated reactor 2, to add lube base oil quality 3%, concentration be 98% the concentrated sulfuric acid, adding sour speed is 3.8kg/min; The 3rd step; After the lube base oil and the concentrated sulfuric acid add completion, start the agitator 4 of pickling agitated reactor 2, the lube base oil and the concentrated sulfuric acid are stirred; Speed of agitator is 50r/min; Mixing time is 30min, in whipping process, makes the lube base oil and the concentrated sulfuric acid carry out sufficient pickling reaction, begins to take shape acid sludge; The 4th step, treat that pickling reaction finishes after, acid, oil mixture are left standstill 30min; Abandon acid sludge after making the acid sludge sedimentation, in pickling agitated reactor 2, adding the agent of acid sludge rapid subsidence under the speed of agitator of 50r/min then, the addition of acid sludge rapid subsidence agent is 0.6% of a lube base oil quality; After the agent of acid sludge rapid subsidence adds completion; Under the speed of agitator of 20r/min, continue to stir 10min, after stirring was accomplished, the acid sludge of this moment was semi-solid dope; The 5th step, abandon acid sludge, upper strata bright stock base oil is delivered to thermostatic tank 6 constant temperature 8h under 60 ℃ of conditions with discharging pump 5 get final product.
Embodiment 16, and be with the difference of embodiment 11 to 15: the lube base oil of embodiment 16 is a mineral base oil.
In the present invention: except that offer some clarification on prior art specific, % is a mass percent.
Traditional handicraft through to the lube base oil of existing known technology is measured, and obtain following data: the production cycle of traditional handicraft is 24 hours, and loss is 8% to 10%, and colourity is 4.0, and processing cost is 1000 yuan/ton; Process for purification through to the lube base oil of the foregoing description 11 to embodiment 16 is measured, and obtain following average data: the production cycle of technology of the present invention is 10 hours, and loss is 5%, and colourity is 3.0, and processing cost is 500 yuan/ton.
Technology of the present invention is compared with traditional handicraft, compares through the data result to production cycle and loss, can find out, technology of the present invention has shortened the production cycle greatly, and is effectively energy-saving and cost-reducing; Oil product colourity numeral is littler, and the expression oil colours is more shallow, and oil product colourity numeral is bigger, and the expression oil colours is darker; The color of lubricating oil finished product often can be reacted its refining degree and stability, and concerning base oil, generally refining degree is high more; It is clean more that the oxide of its hydrocarbon and sulfide remove, and color is also just shallow more, so; Data result through to processing cost compares, and can find out, the oil product color and the stability of technology of the present invention all significantly improve; In addition, compare through the data result to processing cost, can find out, technology of the present invention can effectively save production cost.
Claims (5)
1. acid sludge rapid subsidence agent it is characterized in that this acid sludge rapid subsidence agent is the mixture of any three kinds of raw materials in monoethanolamine, diethanol amine, triethanolamine, the ethylenediamine, and the weight portion of every kind of raw material all is 20 parts to 50 parts.
2. acid sludge rapid subsidence agent is characterized in that consisting of by weight: 20 parts to 50 parts of monoethanolamines, 20 parts to 50 parts of diethanol amine, 20 parts to 50 parts of triethanolamines, 20 parts to 50 parts of ethylenediamines, 0 part to 50 parts in caustic soda, 0 part to 27 parts of waterglass.
3. process for purification of lube base oil that adopts the acid sludge rapid subsidence agent of aforesaid right requirement 1 or 2 books is characterized in that being undertaken by following step: the first step, with lube base oil at 0 to 60 ℃ of constant temperature; Second step; Lube base oil behind the constant temperature is added in the pickling agitated reactor with charge pump; When adding lube base oil; Use adds sour pump, and in the pickling agitated reactor, to add lube base oil quality 1% to 10%, concentration be 92% to 98% the concentrated sulfuric acid, and the speed that adds acid is 3kg/min-10 kg/min; The 3rd step; After the lube base oil and the concentrated sulfuric acid add completion, start the agitator of pickling agitated reactor, the lube base oil and the concentrated sulfuric acid are stirred; Speed of agitator is 30r/min to 60r/min; Mixing time is 30min to 60min, in whipping process, makes the lube base oil and the concentrated sulfuric acid carry out sufficient pickling reaction, begins to take shape acid sludge; The 4th step; After treating that the pickling reaction finishes, under the speed of agitator of 30r/min to 60r/min, the agent of acid sludge rapid subsidence is joined in the pickling agitated reactor, the addition of acid sludge rapid subsidence agent is 0.1% to 1% of a lube base oil quality; After the agent of acid sludge rapid subsidence adds completion; Under the speed of agitator of 20r/min to 50r/min, continue to stir 10min-90 min, make the rapid flocking settling of oil soluble impurity form acid sludge, acid sludge is separated with lube base oil fast; The 5th step, abandon acid sludge, upper strata bright stock base oil is delivered to thermostatic tank with discharging pump, constant temperature 8h to 24h gets final product under 50 ℃ to 60 ℃ conditions.
4. process for purification of lube base oil that adopts the acid sludge rapid subsidence agent of aforesaid right requirement 1 or 2 books is characterized in that being undertaken by following step: the first step, with lube base oil at 0 to 60 ℃ of constant temperature; Second step; Lube base oil behind the constant temperature is added in the pickling agitated reactor with charge pump; When adding lube base oil; Use adds sour pump, and in the pickling agitated reactor, to add lube base oil quality 1% to 10%, concentration be 92% to 98% the concentrated sulfuric acid, and the speed that adds acid is 3kg/min-10 kg/min; The 3rd step; After the lube base oil and the concentrated sulfuric acid add completion, start the agitator of pickling agitated reactor, the lube base oil and the concentrated sulfuric acid are stirred; Speed of agitator is 30r/min to 60r/min; Mixing time is 30min to 60min, in whipping process, makes the lube base oil and the concentrated sulfuric acid carry out sufficient pickling reaction, begins to take shape acid sludge; The 4th step; After treating that pickling reaction finishes, acid, oil mixture are left standstill 30min-60min, abandon acid sludge after making the acid sludge sedimentation; In the pickling agitated reactor, adding the agent of acid sludge rapid subsidence under the speed of agitator of 30r/min to 60r/min then; The addition of acid sludge rapid subsidence agent is 0.1% to 1% of a lube base oil quality, after the agent of acid sludge rapid subsidence adds completion, under the speed of agitator of 20r/min to 50r/min, continues to stir 10min-90 min; After stirring completion, the acid sludge of this moment is semi-solid dope; The 5th step, abandon acid sludge, upper strata bright stock base oil is delivered to thermostatic tank with discharging pump, constant temperature 8h to 24h gets final product under 50 ℃ to 60 ℃ conditions.
5. according to the process for purification of claim 3 or 4 described lube base oils, it is characterized in that lube base oil is a mineral base oil.
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| CN2012101470645A CN102657959A (en) | 2012-05-14 | 2012-05-14 | Acid sludge rapid sedimentation agent and method for refining basic lubrication oil of acid sludge rapid sedimentation agent |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233902A (en) * | 1975-09-12 | 1977-03-15 | Shunichiro Takaoka | Regeneration of waste oil by neutralizing acid sludge in the oil |
| RU2249028C1 (en) * | 2003-10-14 | 2005-03-27 | Открытое акционерное общество "Всероссийский научно-исследовательский институт по переработке нефти" | Petroleum oil production process |
| CN101798522A (en) * | 2010-04-02 | 2010-08-11 | 王国庆 | Deacidification method of acid sludge oil |
| CN102295982A (en) * | 2011-08-03 | 2011-12-28 | 江苏雕皇集团有限公司 | Refining and regenerating method of black-brown used lubricating oil |
| CN102304413A (en) * | 2011-08-03 | 2012-01-04 | 江苏雕皇石化科技有限公司 | Method for refining and regenerating high-quality rufous waste lubricating oil |
-
2012
- 2012-05-14 CN CN2012101470645A patent/CN102657959A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233902A (en) * | 1975-09-12 | 1977-03-15 | Shunichiro Takaoka | Regeneration of waste oil by neutralizing acid sludge in the oil |
| RU2249028C1 (en) * | 2003-10-14 | 2005-03-27 | Открытое акционерное общество "Всероссийский научно-исследовательский институт по переработке нефти" | Petroleum oil production process |
| CN101798522A (en) * | 2010-04-02 | 2010-08-11 | 王国庆 | Deacidification method of acid sludge oil |
| CN102295982A (en) * | 2011-08-03 | 2011-12-28 | 江苏雕皇集团有限公司 | Refining and regenerating method of black-brown used lubricating oil |
| CN102304413A (en) * | 2011-08-03 | 2012-01-04 | 江苏雕皇石化科技有限公司 | Method for refining and regenerating high-quality rufous waste lubricating oil |
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Application publication date: 20120912 |