CN106190470A - A kind of viscosity is the preparation method of the SN level gasoline engine oil of 5W/20 - Google Patents

A kind of viscosity is the preparation method of the SN level gasoline engine oil of 5W/20 Download PDF

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Publication number
CN106190470A
CN106190470A CN201610543983.2A CN201610543983A CN106190470A CN 106190470 A CN106190470 A CN 106190470A CN 201610543983 A CN201610543983 A CN 201610543983A CN 106190470 A CN106190470 A CN 106190470A
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mixed
oil
parts
stand
mixing
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Inventor
李世强
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Tianjin Lanxin Petroleum Chemical Co Ltd
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Tianjin Lanxin Petroleum Chemical Co Ltd
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Priority to CN201610543983.2A priority Critical patent/CN106190470A/en
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04Mixtures of base-materials and additives
    • C10M169/048Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08Inorganic acids or salts thereof
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/0206Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/026Butene
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/283Esters of polyhydroxy compounds
    • C10M2207/2835Esters of polyhydroxy compounds used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084Acrylate; Methacrylate
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04Phosphate esters
    • C10M2223/045Metal containing thio derivatives
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00Metal present as such or in compounds
    • C10N2010/04Groups 2 or 12
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02Pour-point; Viscosity index
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/10Inhibition of oxidation, e.g. anti-oxidants
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/25Internal-combustion engines

Abstract

The present invention relates to the preparation method of the SN level gasoline engine oil that a kind of viscosity is 5W/20, the steps include: (1) base oil mixing: by high-end PAO, hydroisomerizing base oil, polyol ester mixing, stir, stand 20min, stand-by;(2) additive mixing: by polymethacrylates, polyisobutylene mixing, stir, stand 10min, stand-by;(3) mixed function agent: oil is synthesized barium sulfonate, zinc dialkyl dithiophosphate, sodium molybdate mixing, stirs, stand 10min, stand-by;(4) prepared by miscella: mixed homogeneously with mixed additive by mixed base oil, is heated to 70 DEG C, after 3h, is cooled to room temperature, obtains contaminated product;(5) in contaminated product, put into mixed functional agent, stir, sucking filtration, obtain finished product.While the functional agent that base oil is selected by the SN level gasoline engine oil of the 5W/20 that the present invention provides ensure that low pour point and the good kinematic viscosity change value of machine oil, non-oxidizability during long-time use is also increased significantly.

Description

A kind of viscosity is the preparation method of the SN level gasoline engine oil of 5W/20
Technical field
The invention belongs to lubricating oil field, a kind of viscosity is the preparation method of the SN level gasoline engine oil of 5W/20.
Background technology
Along with enterprise's industrial expansion, especially gasoline engine technology are constantly reformed, machinery, the introducing of electronic technology have Effect improves the performance of electromotor, but the specific aim for above-mentioned technology that most of petrol engine uses machine oil is not enough, only Only meet traditional greasy property can not realize petrolic effective maintenance.
Summary of the invention
It is an object of the invention to overcome prior art not enough, it is provided that a kind of abundant burning contributing to fuel oil, significantly drop The preparation method of the SN level gasoline engine oil that discharge viscosity is 5W/20 of low exhaust gas pollutant.
The technical solution used in the present invention is:
A kind of viscosity is the preparation method of the SN level gasoline engine oil of 5W/20, the steps include:
(1) base oil mixing:
By high-end PAO, hydroisomerizing base oil, polyol ester mixing, stir, stand 20min, stand-by;
(2) additive mixing:
By polymethacrylates, polyisobutylene mixing, stir, stand 10min, stand-by;
(3) mixed function agent:
Oil is synthesized barium sulfonate, zinc dialkyl dithiophosphate, sodium molybdate mixing, stirs, stand 10min, treat With;
(4) prepared by miscella:
Mixed base oil is mixed homogeneously with mixed additive, is heated to 70 DEG C, after 3h, be cooled to room temperature, Obtain contaminated product;
(5) in contaminated product, put into mixed functional agent, stir, sucking filtration, obtain finished product.
And, described viscosity is the raw material components of the SN level gasoline engine oil of 5W/20 and parts by weight are respectively as follows:
Base oil 81 parts
Additive 10 parts
Functional agent 9 parts.
And, described base oil is mixed by the component of following parts by weight:
High-end PAO 30 parts
Hydroisomerizing base oil 30 parts
Polyol ester 21 parts.
And, described additive is mixed by the component of following parts by weight:
Polymethacrylates 5 parts
Polyisobutylene 5 parts.
And, described functional agent is mixed by the component of following parts by weight:
Oil synthesis barium sulfonate 5 parts
Zinc dialkyl dithiophosphate 1 part
Sodium molybdate 3 parts.
Advantage of the present invention and good effect be:
Base oil is selected, further according to each component pair of base oil by the SN level gasoline engine oil of the 5W/20 that the present invention provides The defect answered have chosen polymethacrylates, polyprene respectively as additive, by by itself and base oil Hybrid Heating Base oil is improved, reduces its pour point, (can so having that pour point is low compared with the multiple machine oil of commercial goods in performance indications Reach subzero 33 DEG C) feature, thereby ensure that more preferable low temperature flow, its viscosity is with variation of ambient temperature get Geng Ping simultaneously Slow, the especially kinematic viscosity of cold-starting is only 39mm2/ s, the oil consumption of electromotor and noise decibel value when starting and travel All can reduce by 20%, hence it is evident that be better than these performance indications of the prior art.
The functional agent that base oil is selected by the SN level gasoline engine oil of the 5W/20 that the present invention provides ensure that the low of machine oil While pour point and good kinematic viscosity change value, non-oxidizability during long-time use is also increased significantly, prolongs Having grown the drain period, holding use can increasing service life of engine.
Detailed description of the invention
Below by specific embodiment, the invention will be further described, and following example are illustrative, is not limit Qualitatively, it is impossible to limit protection scope of the present invention with this.
A kind of viscosity is the SN level gasoline engine oil of 5W/20, and its raw material components and weight are respectively as follows:
Base oil 81Kg
Additive 10Kg
Functional agent 9Kg.
Wherein base oil is mixed by the component of following weight:
High-end PAO 30Kg PAO is polyalphaolefin, and the present embodiment uses PA4
Hydroisomerizing base oil 30Kg
Polyol ester 21Kg.
Wherein additive is mixed by the component of following weight:
Polymethacrylates 5Kg
Polyisobutylene 5Kg.
Wherein functional agent is mixed by the component of following weight:
Oil synthesis barium sulfonate 5Kg
Zinc dialkyl dithiophosphate 1Kg
Sodium molybdate 3Kg.
Above-mentioned viscosity is the preparation method of the SN level gasoline engine oil of 5W/20: the steps include:
(1) base oil mixing:
By high-end PAO, hydroisomerizing base oil, polyol ester mixing, stir, stand 20min, stand-by;
(2) additive mixing:
By polymethacrylates, polyisobutylene mixing, stir, stand 10min, stand-by;
(3) mixed function agent:
Oil is synthesized barium sulfonate, zinc dialkyl dithiophosphate, sodium molybdate mixing, stirs, stand 10min, treat With;
(4) prepared by miscella:
Mixed base oil is mixed homogeneously with mixed additive, is heated to 70 DEG C, after 3h, be cooled to room temperature, Obtain contaminated product;
(5) putting into mixed functional agent in contaminated product, stir, sucking filtration, component is weighed, and packs and i.e. obtains finished product.
After tested, the pour point of the SN level gasoline engine oil of above-mentioned 5W/20 is subzero 33.2 DEG C, and at 100 DEG C, kinematic viscosity value is 5.5~9.1mm2/ s, adds after travelling 1 year after machine oil, and pour point is subzero 32.5 DEG C, at 100 DEG C kinematic viscosity value be 5.6~ 9.3mm2/ s, thus illustrates using in a year of this machine oil, does not has obvious index to change, relatively like product has significantly Advantage.
Kinematic viscosity is monitored:
With under environment, according to specified amount, the SN level gasoline engine oil of the 5W/20 present invention provided is poured into certain Japanese car In the sump of 1.6L capacity naturally aspirated engine and certain German car 1.4L capacity turbocharged engine, respectively to opening Time dynamic after machine oil kinematic viscosity, driving 5min machine oil kinematic viscosity, driving 10min machine oil kinematic viscosity and driving 30min Engine oil viscosity is tested.
During startup After driving 5min After driving 10min After driving 30min
1.6L naturally aspirated engine 39.5mm2/s 23.2mm2/s 15.1mm2/s 8.5mm2/s
1.4L turbogenerator 39.8mm2/s 21.5mm2/s 14.2mm2/s 7.3mm2/s
By upper table it can be seen that kinematic viscosity on startup is only 39.5mm2/ s, these data are significantly lower than same label The similar index of market product, and in the process of moving, kinematic viscosity raises with temperature and declines, and its data variation more they tends to Gently dipping linearity curve.
Other Indexs measure:
Certain Japanese car 1.6L capacity naturally aspirated engine is poured into its 4S shop specifies existing product and the present invention to carry The SN level gasoline engine oil of the 5W/20 of confession, respectively to start time, travel time noise and real-time fuel consumption detected, Qi Zhongqi Gathering rotating speed time dynamic is data during 1000r/min, and gathering rotating speed during traveling is data during 2500r/min, its correction data As follows:
Noise during startup Noise during traveling Oil consumption during startup Oil consumption during traveling
4S product 41 67 1.2L/h 7.4L/Km
Product of the present invention 33 60 1.1L/h 5.9L/Km
By upper table it can be seen that on startup, engine noise can be reduced to by the gasoline engine oil that the present invention provides About 20%, during traveling, noise can reduce about 9%, and the gasoline engine oil that the present invention provides can be by can be by oil during engine start Consumption reduces about 10%, and during traveling, oil consumption reduces about 20%.
Although disclosing embodiments of the invention for the purpose of illustration, but it will be appreciated by those skilled in the art that: not Departing from the present invention and spirit and scope of the appended claims, various replacements, to change and modifications be all possible, therefore, and this The scope of invention is not limited to embodiment disclosure of that.

Claims (5)

1. a viscosity is the preparation method of SN level gasoline engine oil of 5W/20, it is characterised in that: the steps include:
(1) base oil mixing:
By high-end PAO, hydroisomerizing base oil, polyol ester mixing, stir, stand 20min, stand-by;
(2) additive mixing:
By polymethacrylates, polyisobutylene mixing, stir, stand 10min, stand-by;
(3) mixed function agent:
Oil is synthesized barium sulfonate, zinc dialkyl dithiophosphate, sodium molybdate mixing, stirs, stand 10min, stand-by;
(4) prepared by miscella:
Mixed base oil is mixed homogeneously with mixed additive, is heated to 70 DEG C, after 3h, be cooled to room temperature, obtain Contaminated product;
(5) in contaminated product, put into mixed functional agent, stir, sucking filtration, obtain finished product.
Viscosity the most according to claim 1 is the preparation method of the SN level gasoline engine oil of 5W/20, it is characterised in that: described Base oil, additive, the parts by weight of functional agent are respectively as follows:
Base oil 81 parts
Additive 10 parts
Functional agent 9 parts.
Viscosity the most according to claim 2 is the preparation method of the SN level gasoline engine oil of 5W/20, it is characterised in that: described Base oil is mixed by the component of following parts by weight:
High-end PAO 30 parts
Hydroisomerizing base oil 30 parts
Polyol ester 21 parts.
Viscosity the most according to claim 2 is the preparation method of the SN level gasoline engine oil of 5W/20, it is characterised in that: described Additive is mixed by the component of following parts by weight:
Polymethacrylates 5 parts
Polyisobutylene 5 parts.
Viscosity the most according to claim 2 is the preparation method of the SN level gasoline engine oil of 5W/20, it is characterised in that: described Functional agent is mixed by the component of following parts by weight:
Oil synthesis barium sulfonate 5 parts
Zinc dialkyl dithiophosphate 1 part
Sodium molybdate 3 parts.
CN201610543983.2A 2016-07-12 2016-07-12 A kind of viscosity is the preparation method of the SN level gasoline engine oil of 5W/20 Pending CN106190470A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1906277A (en) * 2003-12-23 2007-01-31 切夫里昂美国公司 Lubricating base oil with high monocycloparaffins and low multicycloparaffins
CN101160381A (en) * 2005-03-03 2008-04-09 切夫里昂美国公司 Polyalphaolefin & fischer-tropsch derived lubricant base oil lubricant blends
CN101287814A (en) * 2005-03-03 2008-10-15 切夫里昂美国公司 Polyalphaolefin & fischer-tropsch derived lubricant base oil lubricant blends
CN101466817A (en) * 2006-06-13 2009-06-24 考格尼斯知识产权管理有限责任公司 Lubricant compounds containing complex esters
CN103497818A (en) * 2013-10-15 2014-01-08 中国石油化工股份有限公司 Lubricating oil compound and preparation method thereof
CN103881791A (en) * 2012-12-21 2014-06-25 雅富顿化学公司 Additive compositions with a friction modifier and a metal dialkyl dithio phosphate salt
CN104293417A (en) * 2013-07-18 2015-01-21 雅富顿化学公司 Friction modifiers for engine oils
CN104508098A (en) * 2012-07-31 2015-04-08 出光兴产株式会社 Lubricating oil composition for internal combustion engine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1906277A (en) * 2003-12-23 2007-01-31 切夫里昂美国公司 Lubricating base oil with high monocycloparaffins and low multicycloparaffins
CN101160381A (en) * 2005-03-03 2008-04-09 切夫里昂美国公司 Polyalphaolefin & fischer-tropsch derived lubricant base oil lubricant blends
CN101287814A (en) * 2005-03-03 2008-10-15 切夫里昂美国公司 Polyalphaolefin & fischer-tropsch derived lubricant base oil lubricant blends
CN101466817A (en) * 2006-06-13 2009-06-24 考格尼斯知识产权管理有限责任公司 Lubricant compounds containing complex esters
CN104508098A (en) * 2012-07-31 2015-04-08 出光兴产株式会社 Lubricating oil composition for internal combustion engine
CN103881791A (en) * 2012-12-21 2014-06-25 雅富顿化学公司 Additive compositions with a friction modifier and a metal dialkyl dithio phosphate salt
CN104293417A (en) * 2013-07-18 2015-01-21 雅富顿化学公司 Friction modifiers for engine oils
CN103497818A (en) * 2013-10-15 2014-01-08 中国石油化工股份有限公司 Lubricating oil compound and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
王先会: "《工业润滑油生产与应用》", 31 January 2011, 中国石化出版社 *
王先会: "《润滑油脂生产原料和设备使用手册》", 31 March 2007, 中国石化出版社 *

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