CN1027650C - Viscosity improver for lubricating oil and its preparation - Google Patents
Viscosity improver for lubricating oil and its preparation Download PDFInfo
- Publication number
- CN1027650C CN1027650C CN 93103650 CN93103650A CN1027650C CN 1027650 C CN1027650 C CN 1027650C CN 93103650 CN93103650 CN 93103650 CN 93103650 A CN93103650 A CN 93103650A CN 1027650 C CN1027650 C CN 1027650C
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- CN
- China
- Prior art keywords
- lubricating oil
- weight
- product
- agent
- preparation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 7
- 238000006731 degradation reaction Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 5
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 5
- 238000005576 amination reaction Methods 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 229920000768 polyamine Polymers 0.000 claims description 4
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 3
- 150000004291 polyenes Chemical class 0.000 claims description 3
- 229920001897 terpolymer Polymers 0.000 claims description 3
- RYPKRALMXUUNKS-UHFFFAOYSA-N 2-Hexene Natural products CCCC=CC RYPKRALMXUUNKS-UHFFFAOYSA-N 0.000 claims description 2
- DPUXQWOMYBMHRN-UHFFFAOYSA-N hexa-2,3-diene Chemical compound CCC=C=CC DPUXQWOMYBMHRN-UHFFFAOYSA-N 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 229920001577 copolymer Polymers 0.000 abstract description 5
- 230000008719 thickening Effects 0.000 abstract description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 16
- -1 ethylene, propylene Chemical group 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N 1-ethenoxybutane Chemical class CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000010707 multi-grade lubricating oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229960001124 trientine Drugs 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Lubricants (AREA)
Abstract
The present invention relates to a new viscosity index improver for lubricating oil and a method for preparing the improver. The lubricating oil improver is prepared by selecting a specific ethylene high-molecular copolymer as a component and adopting a specific method. The product of the invention changes the comprehensive indexes of viscosity-temperature characteristic, thickening capability, low-temperature performance, dispersion performance and the like in the lubricating oil, and is obviously superior to the prior similar products.
Description
The present invention relates to the lubricating oil field, the viscosity index in the particularly middle and high shelves multigrade lubricating oil is counted improving agent.(abbreviation improving agent).
Present commercial lubricating oil improving agent main products has T601, T602, T603, T604 etc.T601 belongs to poly-n-butyl vinyl ether class improving agent, and its thermostability is relatively poor, and over-all properties is outstanding, thereby it uses minimizing day by day.T602 belongs to the polymethacrylate improving agent, though its sticking warm nature is pretty good, and poor heat stability in shear history, and shortage of raw materials, fetch long price.T603 belongs to polyisobutene class improving agent, and its high temperature detergency and low-temperature performance are undesirable, and in can not being used in, in the high-grade multi-grade oil, T604 belongs to ethylene, propylene high-molecular copolymer class improving agent, but its preparation up to the present all is to adopt the preparation of thermooxidative degradation method.In this method preparation process, degradation temperature is up to 320-350 ℃.Requirement to technology is relatively harsher.It is difficult to control, and product to contain dosage little, it is big that viscosity is sheared rate of descent.If add work energetically dosage and improve temperature again after, then technology is uncontrollable, thus unstable product quality, the bad dispersibility in the use, this is a big shortcoming of thermooxidizing preparation method.
In view of above reason, save at present and need seek a kind of raw material and be easy to get, all good lubricating oil viscosity index improver of various performance index indexs, and prepare the simple method of above-mentioned improving agent.
The present invention just is being based on this proposition.The invention provides a kind of lubricating oil viscosity index improver, its major function is the viscosity-temperature characteristics that change lubricating oil.Its shear resistant, thermal oxidation stability, thickening ability, overall targets such as low-temperature performance and dispersing property all significantly are better than present like product.
Lubricating oil improving agent of the present invention is a solute with specific ethylene, propylene 1.4 hexadiene ternary high-molecular copolymers; 150-200SN deep hydrogenation mineral oil is that solvent and polyamines polyene are compositions such as aminating agent and other auxiliary material.Wherein the second propylene terpolymers accounts for 6-13%(weight), solvent accounts for 85-90%, and the aminating agent polyamines polyene accounts for 0.5-2%.
Propylene content 37-50% in the above-mentioned special ethylene propylene ternary high-molecular copolymer.Propylene is inverted chain preface structure between 0.2-20%, degree of crystallinity between 0.5-10%, its molecular weight determination ML(1+4) 121 ℃, between 10-90.Between three monomers, the 1.4 hexadiene content 1.2-1.6.Described aminating agent is selected the polyamines polyene compounds, as diethylenetriamine, and triethylene tetramine etc.
Other above-mentioned auxiliary material is an initiator, defoamer, and oxidation inhibitor, grafting agent etc. all belong to the common agents that this area professional knows, as phenylenediamine oxidation inhibitor, dimethyl silicone oil defoamer, maleic anhydride graft agent etc.
With above-mentioned all the components, through certain degree and condition, preparing the method that lubricating oil improving agent of the present invention promptly prepares lubricating oil improving agent of the present invention is another object of the present invention.
The present invention prepares the method for lubricating oil improving agent and is made up of following step successively.
1. solute is carried out depolymerization.
2. with the product and the solvent of step (1).
3. the product with step (2) carries out mechano-degradation.
4. the product of step (3) is entered and cushion in the accumulator still and grafting amination.
5. filter by filter after the product nitrogen flushing with step (4).
Step (1) is carried out solute the solute depolymerization with hydraulic pressure chain rupture machine and speed ratio shears.Through selecting the particle net of 5-10mm diameter behind the speed ratio shears, be sent in the reactor and be raised to 80 ℃ to 100 ℃, and the intermediate kinematic viscosity when keeping 100 ℃ is at 1000-1800mm with solvent, temperature in the kettle
2Between/the S.About three to four hours intermediate is imported the mechano-degradation that carries out step (3) in the homogenizer, degraded pressure is 40-65MPa.Product behind the mechano-degradation imports in the accumulator still and carries out step (4).Treated behind the grafting amination nitrogen flushing one hour, and passed through step (5) again and filter and promptly get product of the present invention.
The invention will be further described below by embodiment.But not as the restriction of product of the present invention and method.
Embodiment 1: with preparation 1000kg product is that example is carried out.
With selected on request ethylene, propylene 1.4 hexadiene ternary high-molecular copolymer 80kg, after the pre-depolymerization of hydraulic pressure chain rupture machine, deliver to the speed ratio shears and be processed into 5-10mm diameter particle net and render to fill in the 900kg solvent still and mix, temperature keeps 100 ℃ mixture to be imported after following 3-4 hour and carry out homogeneous in the homogenizer.Homogenization pressure is transferred 65MPa from 40MPa, intermediate is imported again to carry out 180 ℃ of grafting amination maintenances in the accumulator still then, and nitrogen flushing got final product by strainer in 1 hour at last after 6-10 hour.
Below be the product performance comparison test result of product of the present invention and U.S. Exxon company: (table is seen the literary composition back)
Find out that from The above results the main quality index of product of the present invention all is better than the product of U.S. Exxon company.
Title Exxon test method of the present invention
Project
Thickening ability 90 9.18 12.57
Diesel fuel nozzle shear viscosity 20.65 27.28 import mouth oil burner nozzle shearing methods
100 ℃ of rates of descent 90
Low temperature viscosity 2,750 2780 GB6538
（-20℃）ccs mpa.s
Form and aspect Dl500＜2.0 2.0 GB6540
100 ℃ of mm/S of viscosity, 10.83 10.75 L-38 Bench Evaluation
Skirt of piston paint film 9.5 9.5 L-38 Bench Evaluation
Evaluation
Become heavy mg 162.7 207.6 simulations of offset plate to become the glue machine
Nitrogen content 90 0.39-0.4 0.45 2400CHN
Claims (3)
1, a kind of lubricating oil viscosity index improver is characterized in that: contain specific ethylene propylene terpolymer 6%-13% (weight), the 150SN-200SN mineral oil solvent of 85%-90% (weight), grafting agent accounts for 0.1%-3% (weight), and aminating agent accounts for 0.5%-20% (weight).
2, according to the lubricating oil improving agent of claim 1, propylene content 37%-50%(weight in the wherein specific ethylene propylene terpolymer), the chain preface structure 0.2%-20% that is inverted of propylene, 1.4 hexadiene content 1.2%-1.6%(mol), carbon content is 87%, hydrogen richness 13%, degree of crystallinity 0.5%-10%, molecular weight determination ML(1+4) 121 ℃ (between 10-90).
3, the method for the lubricating oil improving agent of preparation claim 1 is pressed poly-carrying out of step successively:
(1) adopt hydraulic pressure chain rupture machine and speed ratio shears that solute is carried out depolymerization;
(2) with the product and the solvent of step (1), its fluid consistency is 1000-1800mm under 80-100 ℃
2Between/the S;
(3) product with step (2) carries out mechano-degradation, and its degraded pressure is single viscosifying agent between 40-65MPa;
(4) viscosifying agent of step (3) is imported carry out grafting and polyamines polyene amination again after cushioning in the accumulator still;
(5) with the product nitrogen flushing after-filtration of step (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93103650 CN1027650C (en) | 1993-04-06 | 1993-04-06 | Viscosity improver for lubricating oil and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93103650 CN1027650C (en) | 1993-04-06 | 1993-04-06 | Viscosity improver for lubricating oil and its preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1079501A CN1079501A (en) | 1993-12-15 |
| CN1027650C true CN1027650C (en) | 1995-02-15 |
Family
ID=4984718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93103650 Expired - Fee Related CN1027650C (en) | 1993-04-06 | 1993-04-06 | Viscosity improver for lubricating oil and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027650C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043360C (en) * | 1996-06-05 | 1999-05-12 | 中国石化兰州炼油化工总厂 | Lubricating oil compsn. |
| WO2000060032A1 (en) * | 1999-03-30 | 2000-10-12 | Mitsui Chemicals, Inc. | Viscosity regulator for lubricating oil and lubricating oil composition |
| CN100400630C (en) * | 2006-07-07 | 2008-07-09 | 北京凯诗龙石化制品有限公司 | Lubricating oil viscosity index improver |
| CN102031182B (en) * | 2010-12-13 | 2013-12-18 | 陆东祥 | Multifunctional lubricating oil viscosity index improver and preparation method thereof |
| CN103374439B (en) * | 2012-04-16 | 2015-01-14 | 中国石油化工股份有限公司 | Novel viscosity index improver |
| CN112778460B (en) * | 2020-12-31 | 2022-10-28 | 深圳市广昌达石油添加剂有限公司 | Acrylamide-alpha-olefin copolymer, drag reducer and preparation method thereof |
-
1993
- 1993-04-06 CN CN 93103650 patent/CN1027650C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1079501A (en) | 1993-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19950215 Termination date: 20110406 |