CN102796599B - Preparation method of synthetic steam turbine oil - Google Patents

Preparation method of synthetic steam turbine oil Download PDF

Info

Publication number
CN102796599B
CN102796599B CN201210269458.8A CN201210269458A CN102796599B CN 102796599 B CN102796599 B CN 102796599B CN 201210269458 A CN201210269458 A CN 201210269458A CN 102796599 B CN102796599 B CN 102796599B
Authority
CN
China
Prior art keywords
ester
parts
oil
acid
mixed
Prior art date
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.)
Active
Application number
CN201210269458.8A
Other languages
Chinese (zh)
Other versions
CN102796599A (en
Inventor
涂晶
涂莹
涂登源
鹿毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XINJIANG FLY C' OIL CO Ltd
Original Assignee
XINJIANG FLY C' OIL CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by XINJIANG FLY C' OIL CO Ltd filed Critical XINJIANG FLY C' OIL CO Ltd
Priority to CN201210269458.8A priority Critical patent/CN102796599B/en
Publication of CN102796599A publication Critical patent/CN102796599A/en
Application granted granted Critical
Publication of CN102796599B publication Critical patent/CN102796599B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Lubricants (AREA)

Abstract

The invention provides a preparation method of a synthetic steam turbine oil. The preparation method comprises the following steps: mixing 50-54 parts of diethylene glycol with 50-54 parts of hexanedioic acid, or mixing 25-27 parts of propanetriol with 16.7-18 parts of hexanedioic acid to form ester A; mixing 56-58 parts of diethylene glycol with 28-29 parts of lauric acid, or mixing 56-58 parts of propanetriol with 18.7-19.3 parts of lauric acid to form ester B; mixing 50-55 parts of diethylene glycol with 50-55 parts of phthalic acid, or mixing 25-27.5 parts of propanetriol with 16.7-18.3 parts of phthalic acid to form ester C; further mixing the ester A with the ester B; mixing the ester A with the ester C; mixing the ester B with the ester C to prepare a base oil; and taking 52-86 parts of base oil, and adding 14-48 parts of complex ingredients to prepare the finished product oil.

Description

A kind of preparation method of synthesis type turbine oil
Technical field
The present invention relates to turbo-engine lube, be particularly useful for the lubricating oil of turbine system, this product has antirust, the wear-resistant wear resisting property of good anti-corruption and emulsion resistance, anti-oxidative stability energy and long work-ing life.
Background technology
Steam turbine kind is more, and turbine oil is the lubricant of all kinds of steam turbine.In recent years, along with the development of the development of national economy, particularly power industry, the demand of turbine oil is risen year by year, higher to the specification of quality of turbine oil, the kind of turbine oil also needs continuous increase.
Searching document discloses: [1] patent CN02141795 discloses a kind of long lifetime turbine oil lubricating oil composition, wherein comprises: more than sulphur content 0.3wt%, and the base oil that saturated hydrocarbon content is feature lower than 90wt%, its content is 90-99wt%; As the 2,6 ditertiary butyl p cresol of shield phenol type antioxidant, 0.1-0.25wt%; As the phosphorous acid ester of peroxide decomposer, 0.1-0.2wt%; As the derivative of the 124 Triazole of metal passivator, 0.01-0.05wt%; As the dodecenylsuccinic acid ester of neutral rust-preventive agent, 0.01-0.05wt%; The lubricating oil composition combining.[2] patent CN99121597 discloses a kind of turbine oil with excellent high temperature oxidation stability, wherein comprise alkylated diphenylamine and/or nonox, with olefine sulfide and/or sulfide aliphatic acid and/or ash-free dithiocarbamates and/or thiuram disulfide, in residuum, contain and take the base oil that very low sulphur content (<0.03% weight) and high saturates content (>90% volume) is feature, with optional neutral rust-preventive agent, this lubricant demonstrates superior oxidative stability, and for turbine oil with get rusty and the use of thickened oil provides sufficient corrosion protection effect and controlled sludge effect.[3] patent CN200810224435 discloses a kind of composition for anti-ammonia turbine oil, its component and content are shield phenol type antioxidant by weight percentage, alkyl diphenylamine oxidation inhibitor or the two composite mixture oxidation inhibitor are 0.1-2.0%, nonacid rust-preventive agent is 0.01-2.0%, metal passivator is 0.01-1%, kilfoam is 0.001-0.01%, surplus is base oil, base oil is II class hydrogenated base oil, sulphur content is less than or equal to 0.03% by weight, saturation ratio is more than or equal to 90%, oxidation inhibitor is that shield phenol type antioxidant and alkyl diphenylamine are composite, be 1:0.1-10 by weight proportion, this characteristic feature of an invention is: have excellent oilness, oxidation stability, good minute water-based energy, air release property, extremely strong non-corrosibility, can keep neutral to ammonia and synthetic gas, there is minimum greasy filth and generate trend, can reduce stop time, reduce operation and maintenance cost.
At present, the gear machine oil of China still be take mineral oil as main, and mineral oil has and uses working life short, easily catches fire and explosion safety accident, and environmental pollution is serious, and energy consumption is large, changes oil and faults frequent, has a strong impact on the shortcomings such as production efficiency.Ucon oil has predetermined chemical structure and physics, chemical property, and it has various advantages with respect to mineral oil, can meet mineral oil and natural fats and oils the Special use requirement under unappeasable harsh working condition; Lubricating oil in esters itself just has good biodegradability and nontoxic, can be used for the equipment lubrication in region of environment sensitive and food, pharmaceutical industries machinery, also can meet the lubricated needs of harshness of the Grand Equipments such as large-scale wind generating equipment, modern military field, field of aerospace, precision optical machinery manufacture field, large-scale heavy-duty machinery equipment field and key project construction, reduction, for the degree of dependence of imported product, has great national defense safety meaning.
Polyvalent alcohol of the present invention and organic acid are selected and combination, design and synthesize there is the viscosity temperature characteristic that pour point is low, good, wear-resistant wear-resisting, anti-resistance to emulsion, fabulous defoaming, corroding metal, rustless property and oil-water separativeness are not good, nontoxic and lube product that can biodegradable excellent property, is applicable to steam turbine equipment; Meanwhile, promote China's equipment manufacture and the development of military equipment industry, solve the key technical problem of lubricant aspect, show technical progress.
Summary of the invention
Order of the present invention is: the ester oil obtaining, have demulsification performance, anti-oxidant stable, carbon distribution proneness is little, anticorrosive, rust-proofing, defoaming and the excellent advantages such as viscosity temperature characteristic that oily water separation performance is excellent, fabulous, is mainly used in steamer system mechanics equipment etc.
The object of the present invention is achieved like this: a kind of preparation method of synthesis type turbine oil, and raw material is prepared with parts by weight, the preparation process of minute base oil and processed oil:
The preparation of step 1 base oil:
Ester A: Diethylene Glycol 50-54 part is mixed with hexanodioic acid 50-54 part or glycerol 25-27 part is mixed with hexanodioic acid 16.7-18 part, to be prepared;
Ester B: Diethylene Glycol 56-58 part is mixed with lauric acid 28-29 part or glycerol 56-58 part is mixed with lauric acid 18.7-19.3 part, to be prepared;
Ester C: by Diethylene Glycol 50-55 part and the mixing of phthalic acid 50-55 part or glycerol 25-27.5 part and the mixing of phthalic acid 16.7-18.3 part, to be prepared;
Mixed ester A and ester B: 44-46 part ester A is mixed with 40-41 part ester B, to be prepared;
Mixed ester A and ester C: 42-44 part ester A is mixed with 41-43 part ester C, to be prepared;
Mixed ester B and ester C: 43-46 part ester B is mixed with 40-43 part ester C, to be prepared;
Through preparing: by ester A, ester B, ester C, mixed ester A and ester B, mixed ester A and ester C, mixed ester B and ester C, the stainless steel mediation still that is placed in respectively belt stirrer reacts, and holding temperature is at 75-85 ℃, and reaction times 3-5h, mixes to obtain base oil;
The preparation of step 2 processed oil:
Base oil: by 50-54 part ester A, or 56-58 part ester B, or 50-55 part ester C, or 44-46 part mixed ester A and 40-41 part mixed ester B, or 42-44 part mixed ester A and 41-43 part mixed ester C, or 43-46 part mixed ester B and 40-43 part mixed ester C composition;
Composite material: by 1.2-1.9 part dialkyl dithiophosphoric acid oxygen molybdenum, 1.0-1.8 part thiophosphoric acid phenyl ester, 0.5-1.5 part 2,6 α-amino isopropyl alcohols, 0.3-1.5 part zinc naphthenate, 0.3-1.3 part sulfur phosphorization polyisobutylene titanate salt, 0.1-0.4 part YM efficient metal passivator, 0.01-0.02 part polyoxypropylene glycerol ether, 0.08-0.25 part polyethylene oxide-polypropylene oxide, or 1.0-1.8 part 124 Triazole lipid acid amine salt or 28-43 part mineral oil or 7-8 part polyisobutene composition;
Through preparing: get 52-86 part base oil, or ester A or ester B, or ester C, or mixed ester A and mixed ester B, or mixed ester A and mixed ester C or mixed ester B and ester C, the stainless steel mediation still that is placed in belt stirrer reacts, maintain still temperature at 50-60 ℃, continuously stirring 2-3h; Add successively the composite material of 14-48 part, be dialkyl dithiophosphoric acid oxygen molybdenum, thiophosphoric acid phenyl ester, α-amino isopropyl alcohol, zinc naphthenate, sulfur phosphorization polyisobutylene titanate salt, YM efficient metal passivator, polyoxypropylene glycerol ether, polyethylene oxide-polypropylene oxide or 124 Triazole lipid acid amine salt or mineral oil or polyisobutene, maintain still temperature at 60-80 ℃, continuously stirring 2-4 hour, all dissolve to mixture, obtain steam turbine processed oil.
Action principle of the present invention is: by the extreme pressure anti-wear additives of sulfur-bearing, anti-wear agent, non-emulsifying agent, metal passivator, purification agent, rust-preventive agent, defoamer and oxidation inhibitor, and synthetic ester lubricant is the turbine oil combination of base oil gained; Improve domestic turbine oil and can not meet the service requirements of high end compression machine equipment in the performances such as antirust, the wear-resistant wear resisting property of anti-corruption of steam turbine equipment system, resistance to emulsion, anti-oxidative stability, reduction carbon distribution, by the synthesizing ester turbo-engine lube of independent research Substitute For Partial import brand (as Shell, Mobil etc.).
The base oil of synthesis type turbine oil of the present invention, this base oil chemical molecular formula is:
Hexanodioic acid lauric acid neck phthalic acid
Diethylene Glycol glycerol
The synthesis type ester class turbine oil that the present invention proposes, can replace take the turbine oil that mineral oil is base oil, greatly improve steam turbine equipment good viscosity temperature characteristic, suitable flash-point, anti-oxidant and stability is made good use of, carbon distribution proneness is extremely low, resistant to tarnishing corrosive nature, demulsification performance, antifoam property, fabulous oil-water separativeness, and there is biodegradable and very long feature in work-ing life, nontoxicly can not pollute the requirement that meets environmental protection; Meanwhile, the base oil of ester class synthesis type is applicable to the mediation of various lubricant bases, with it, is the specification requirement that the synthetic turbine oil in basis all meets mineral oil origin turbine oil standard GB/T 11120-89, shows technical progress.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
The stainless steel that 52.6 parts of mixed ester A and 42.41 parts of mineral oil are joined to belt stirrer is in harmonious proportion in still and reacts, and maintains still temperature at 60 ℃, continuously stirring 2 hours; Successively 1.5 parts of dialkyl dithiophosphoric acid oxygen molybdenums, 1.2 parts of thiophosphoric acid phenyl esters, 1 part of α-amino isopropyl alcohol, 0.5 part of zinc naphthenate, 0.4 part of sulfur phosphorization polyisobutylene titanate salt, 0.3 part of YM efficient metal passivator, 0.01 part of polyoxypropylene glycerol ether, 0.08 part of polyethylene oxide-polypropylene oxide are entered in mediation still, maintain still temperature at 75 ℃, continuously stirring 2 hours, all dissolve to mixture, be even shape, obtain finished product turbine oil.
Embodiment 2
By 57.3 parts of mixed ester B, 8 parts of polyisobutene and 28.49 parts of mineral oil, the stainless steel that joins belt stirrer is in harmonious proportion in still and reacts, and maintains still temperature at 55 ℃, continuously stirring 2 hours; Successively 1 part of 124 Triazole lipid acid amine salt, 1.5 parts of thiophosphoric acid phenyl esters, 1.3 parts of α-amino isopropyl alcohols, 1.5 parts of zinc naphthenates, 0.5 part of sulfur phosphorization polyisobutylene titanate salt, 0.29 part of YM efficient metal passivator, 0.02 part of polyoxypropylene glycerol ether, 0.1 part of polyethylene oxide-polypropylene oxide are joined in mediation still, maintain still temperature at 79 ℃, continuously stirring 2 hours, all dissolve to mixture, be even shape, obtain finished product turbine oil.
Embodiment 3
The stainless steel that 54.3 parts of mixed ester C and 41.9 parts of mineral oil are joined to belt stirrer is in harmonious proportion in still and reacts, and maintains still temperature at 50 ℃, continuously stirring 2 hours; Successively 1 part of 124 Triazole lipid acid amine salt, 1 part of thiophosphoric acid phenyl ester, 0.5 part of α-amino isopropyl alcohol, 0.5 part of zinc naphthenate, 0.3 part of sulfur phosphorization polyisobutylene titanate salt, 0.35 part of YM efficient metal passivator, 0.01 part of polyoxypropylene glycerol ether, 0.14 part of polyethylene oxide-polypropylene oxide are joined in mediation still, maintain still temperature at 80 ℃, continuously stirring 2 hours, all dissolve to mixture, be even shape, obtain finished product turbine oil.
Embodiment 4
By 45.59 parts of mixed ester A, the stainless steel that 8 parts of polyisobutene and 40.2 parts of mixed ester B join belt stirrer is in harmonious proportion in still and reacts, and maintains still temperature at 50 ℃, continuously stirring 2 hours; Successively by 1.8 parts of 124 Triazole lipid acid amine salt, 1.8 parts of thiophosphoric acid phenyl esters, 0.8 part 2,6 α-amino isopropyl alcohols, 0.5 part of zinc naphthenate, 1 part of sulfur phosphorization polyisobutylene titanate salt, 0.01 part of polyoxypropylene glycerol ether, 0.2 part of YM efficient metal passivator, 0.1 part of polyethylene oxide-polypropylene oxide join in mediation still, maintain still temperature at 75 ℃, continuously stirring 2 hours, all dissolve to mixture, be even shape, obtain finished product turbine oil.
Embodiment 5
By 43.7 parts of mixed ester A, the stainless steel that 8 parts of polyisobutene and 42 parts of mixed ester C join belt stirrer is in harmonious proportion in still and reacts, and maintains still temperature at 55 ℃, continuously stirring 2 hours; Successively 1.9 parts of dialkyl dithiophosphoric acid oxygen molybdenums, 1.8 parts of thiophosphoric acid phenyl esters, 0.5 part of α-amino isopropyl alcohol, 0.01 part of polyoxypropylene glycerol ether, 0.6 part of zinc naphthenate, 1.2 parts of sulfur phosphorization polyisobutylene titanate salts, 0.1 part of YM efficient metal passivator, 0.19 part of polyethylene oxide-polypropylene oxide are joined in mediation still, maintain still temperature at 80 ℃, continuously stirring 2 hours, all dissolve to mixture, be even shape, obtain finished product turbine oil.
Embodiment 6
By 45.1 parts of mixed ester B, 8 parts of polyisobutene and 40.14 parts of mixed ester C join in the stainless steel mediation still of belt stirrer, maintain still temperature at 60 ℃, continuously stirring 2 hours; Successively 1.5 parts of 124 Triazole lipid acid amine salt, 1.5 parts of thiophosphoric acid phenyl esters, 1.5 parts of α-amino isopropyl alcohols, 0.01 part of polyoxypropylene glycerol ether, 0.5 part of zinc naphthenate, 1.3 parts of sulfur phosphorization polyisobutylene titanate salts, 0.2 part of YM efficient metal passivator, 0.25 part of polyethylene oxide-polypropylene oxide are joined in mediation still, maintain still temperature at 75 ℃, continuously stirring 2 hours, all dissolve to mixture, be even shape, obtain finished product turbine oil.
The turbo-engine lube that ester class synthesis type base oil of the present invention is in harmonious proportion, the results are shown in following table after tested.
By upper table data, learnt: its anti-oxidative stability of this gear oil, demulsification performance and have great raising work-ing life.
The raw material that present method is selected: Diethylene Glycol, glycerol and organic acid are provided by Haian County, Jiangsu Province petroleum chemical plant; Mineral oil, by Dushanzi, petro-chemical corporation provides; Anti-wear agent, 124 Triazole lipid acid amine salt (T406), dialkyl dithiophosphoric acid oxygen molybdenum, by Lanzhou, Noveon Inc. provides; Extreme pressure anti-wear additives, thiophosphoric acid phenyl ester (T309), by Jinzhou, Hui Fatianhe Chemical Co., Ltd. provides; Oxidation inhibitor is α-amino isopropyl alcohol, and by Qingdao, Ju Long Chemical Co., Ltd. provides; Rust-preventive agent is zinc naphthenate (T704), and by Nanjing, Long Peng Chemical Co., Ltd. provides; Purification agent is sulfur phosphorization polyisobutylene titanate salt (T108), by Fushun Petrochemical Company (petrochemical industry five factories), is provided; Metal passivator is YM efficient metal passivator, and by Shanghai, Qing Yuanxing Chemical Industry Science Co., Ltd provides; Non-emulsifying agent is polyethylene oxide-polypropylene oxide (sp169), and by Jinan, nova Chemical Co., Ltd. provides; Viscosity index improver is polyisobutene (T603), by Jilin Chemical Industrial Co. Ltd., is provided; Defoamer is polyoxypropylene glycerol ether, and by Lanzhou, Noveon Inc. provides.
The stainless steel mediation still that present method is selected is provided by Wuxi City political circle petrochemical equipment company limited.

Claims (2)

1. a preparation method for synthesis type turbine oil, is characterized in that: raw material is prepared with parts by weight, follows these steps to implement;
The preparation of step 1 base oil:
A, adopts one of following two kinds of methods to obtain ester A:50-54 part Diethylene Glycol and mixes with 50-54 part hexanodioic acid; Or 25-27 part glycerol is mixed with 16.7-18 part hexanodioic acid;
B, adopts one of following two kinds of methods to obtain ester B:56-58 part Diethylene Glycol and mixes with 28-29 part lauric acid; Or 56-58 part glycerol is mixed with 18.7-19.3 part lauric acid;
C, adopts one of following two kinds of methods to obtain ester C:50-55 part Diethylene Glycol and 50-55 part phthalic acid mixes; Or 25-27.5 part glycerol and the mixing of 16.7-18.3 part phthalic acid;
D, gets 44-46 part ester A and 40-41 part ester B is mixed to get ester D;
E, gets 42-44 part ester A and 41-43 part ester C is mixed to get ester E;
F, gets 43-46 part ester B and 40-43 part ester C is mixed to get ester F;
G, by ester A, ester B, ester C, ester D, the stainless steel mediation still that ester E and ester F are placed in respectively belt stirrer reacts, and holding temperature is at 75-85 ℃, and reaction times 3-5h, mixes to obtain base oil;
The preparation of step 2 turbine oil:
H, composite material: by1.2-1.9 part dialkyl dithiophosphoric acid oxygen molybdenum, 1.0-1.8 part thiophosphoric acid phenyl ester, 0.5-1.5 part α-amino isopropyl alcohol,0.3-1.5 part zinc naphthenate, 0.3-1.3 part sulfur phosphorization polyisobutylene titanate salt, 0.1-0.4 part YM efficient metal passivator, 0.01-0.02 part polyoxypropylene glycerol ether, 0.08-0.25 part polyethylene oxide-polypropylene oxide; Or 1.0-1.8 part 124 Triazole fatty acid ammonium salt; Or 28-43 part mineral oil; Or 7-8 part polyisobutene forms;
I, gets 52-86 part step 1 gainedbase oil, the stainless steel that is placed in belt stirrer is in harmonious proportion still and reacts, and maintains still temperature at 50-60 ℃, and continuously stirring 2-3h, adds the composite material of 14-48 part, maintains still temperature at 60-80 ℃, and continuously stirring 2-4h all dissolves to mixture, obtains processed oil.
2. preparation method according to claim 1, is characterized in that: the raw material of selecting is commercially available prod.
CN201210269458.8A 2012-07-30 2012-07-30 Preparation method of synthetic steam turbine oil Active CN102796599B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210269458.8A CN102796599B (en) 2012-07-30 2012-07-30 Preparation method of synthetic steam turbine oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210269458.8A CN102796599B (en) 2012-07-30 2012-07-30 Preparation method of synthetic steam turbine oil

Publications (2)

Publication Number Publication Date
CN102796599A CN102796599A (en) 2012-11-28
CN102796599B true CN102796599B (en) 2014-09-03

Family

ID=47195909

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210269458.8A Active CN102796599B (en) 2012-07-30 2012-07-30 Preparation method of synthetic steam turbine oil

Country Status (1)

Country Link
CN (1) CN102796599B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102260576A (en) * 2011-07-08 2011-11-30 苏州惠丰润滑油有限公司 Steam turbine oil
CN102344849A (en) * 2010-07-29 2012-02-08 中国石油化工股份有限公司 Turbine oil additive composition
RU2451060C2 (en) * 2010-07-05 2012-05-20 Государственное образовательное учреждение высшего профессионального образования Российский государственный университет нефти и газа имени И.М. Губкина Turbine oil

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8623795B2 (en) * 2010-07-27 2014-01-07 Exxonmobil Research And Engineering Company Method for maintaining antiwear performance of turbine oils containing polymerized amine antioxidants and for improving the deposit formation resistance performance of turbine oils containing monomeric and/or polymeric antioxidants

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2451060C2 (en) * 2010-07-05 2012-05-20 Государственное образовательное учреждение высшего профессионального образования Российский государственный университет нефти и газа имени И.М. Губкина Turbine oil
CN102344849A (en) * 2010-07-29 2012-02-08 中国石油化工股份有限公司 Turbine oil additive composition
CN102260576A (en) * 2011-07-08 2011-11-30 苏州惠丰润滑油有限公司 Steam turbine oil

Also Published As

Publication number Publication date
CN102796599A (en) 2012-11-28

Similar Documents

Publication Publication Date Title
CN102618360B (en) Compressor oil composition
CN102277224B (en) Lubricant composition for transmission system of wind power equipment
CN104498144B (en) A kind of universal synthesis petrol and diesel oil lubricating oil and preparation method thereof
CN103396865B (en) Environment-friendly high-wear-resistance lubricating oil and preparation method thereof
CN109536248A (en) Fully synthetic anti-microdot erosion Wind-turbine gear oil composition of one kind and preparation method thereof
CN102031190A (en) Cutting oil and preparation method thereof
CN102851102B (en) Lubricating oil special for methanol gasoline engine and preparation method thereof
CN103113965B (en) Extreme-pressure steam turbine oil
US20140162918A1 (en) Industrial gear lubricating oil composition used for resisting micro-pitting
CN107099364B (en) Fully-synthesized efficient multifunctional hydraulic oil and preparation method thereof
CN104479818A (en) Castor-based pitting corrosion-resistant closed heavy load industrial gear oil composition
CN111321028A (en) Ashless antioxidant lubricating oil additive, compound lubricating oil additive and lubricating oil composition containing additives
CN103695135B (en) Castor-oil plant base fuel gas engine oil composition
CN109536249A (en) A kind of lubricating grease and preparation method thereof applied to wind power plant yaw system gear
CN101245281A (en) Turbine lubricant oil with extreme pressure highly resistance oxidation susceptibility
CN102268318A (en) Water base cutting fluid composition and preparation method thereof
CN103254986A (en) Lubricating oil of dual-fuel engine and preparation method of lubricating oil
CN103725365A (en) Water-based hydraulic fluid composition
CN106590877A (en) Fully synthetic heavy-duty screw air compressor oil and preparation method thereof
CN112410096A (en) Preparation of aromatic nitrogenous boric acid ester as high-wear-resistance antifriction lubricating oil additive
CN101575546B (en) Oil film bearing lubricating oil with high water separation performance
CN104531269A (en) Marine plunger type engine lubricating oil composition
CN102796599B (en) Preparation method of synthetic steam turbine oil
CN102352276B (en) Paper machine oil (PMO) composition and preparation method thereof
CN112410097A (en) Preparation and application of high-wear-resistance antifriction molybdenum-containing lubricating oil additive

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Tu Jing

Inventor after: Tu Ying

Inventor after: Tu Dengyuan

Inventor after: Lu Yi

Inventor before: Tu Jing

Inventor before: Tu Ying

Inventor before: Tu Dengyuan

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: TU JING TU YING TU DENGYUAN TO: TU JING TU YING TU DENGYUAN LU YI

C14 Grant of patent or utility model
GR01 Patent grant