CN103571588A - Calcium naphthenate base octa-polyurea lubricating grease and preparation method thereof - Google Patents
Calcium naphthenate base octa-polyurea lubricating grease and preparation method thereof Download PDFInfo
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Abstract
The invention provides calcium naphthenate base octa-polyurea lubricating grease and a preparation method thereof. The grease comprises the following components in percentage by the weight of the lubricating grease: (1) 10 to 70% of non-Newtonian calcium naphthenate; (2) 0.5 to 30% of octa-polyurea; (3) 10 to 80% of lubricating base oil. The calcium naphthenate base octa-polyurea lubricating grease is prepared by the following steps: converting non-Newtonian calcium naphthenate and then subjecting the conversion product to carry out reactions with diisocyanate, diamine, and monoamine. The lubricating grease provided by the invention has an excellent extreme pressure anti-wear property and a long lubricating service life, and at the same time has the excellent properties of adhesiveness, waterproofness, colloid stability, high dropping point, thermal stability, corrosion resistance, and salt smog resistance.
Description
Technical field
The present invention relates to lubricant, definite a kind of calcium naphthenate base eight polyurea greases and preparation method thereof that say.
Background technology
High base number calcium naphthenate has good detergent-dispersant performance, good acid neutralization capacity and excellent diffustivity, the purification agent that can be used as lubricating oil, be widely used in the additive of internal combustion (IC) engine lubricating oil, its technical development is mainly to make its high alkalization, exactly calcium carbonate is distributed to and in thinning oil, becomes a kind of colloidal dispersion system with having surface-active naphthenic acid calcium.The acidic components that extract the distillate mostly high base number calcium naphthenate is to obtain from crude distillation, warp and Ca (OH)
2reaction, the contour alkalization technology of carbonating and obtain, the relevant Patents of preparing has CN 1465560 etc.
What to utilize calcium sulfonate with high base number be raw material production lubricating grease has excellent high temperature performance because of it, mechanical stability, colloid stability, oxidation stability, water resisting property, non-corrosibility and antirust resistance to abrasion, since putting goods on the market, cause the extensive concern of domestic and international lubricating grease industry, yet, although high base number composite calcium sulfonate base grease has very excellent over-all properties, but the high price of its raw materials for production calcium sulfonate with high base number and complicated preparation technology itself cause it not promoted rapidly, simultaneously, along with people are more and more higher to the requirement of environment protection, in calcium sulfonate with high base number production process must through sulfonation process the pollution of environment is also received to people's concern day by day.Find a kind of performance and high base number composite calcium sulfonate similar but can avoid the lubricating grease of the problems referred to above to become the large problem that people face at present.
Summary of the invention
The invention provides a kind of calcium naphthenate base eight polyurea greases, it is raw material that this lubricating grease has adopted petroleum naphthenic acid calcium or synthetic calcium naphthenate, contains eight polyurea compounds that isocyanic ester and amine reaction produce simultaneously.
The present invention also provides above-mentioned preparation of greases method.
Naphthenate with superhigh base number calcium base provided by the invention eight polyurea greases, take lubricating grease weight as benchmark, comprise following component:
1) non-newtonian fluid calcium naphthenate 10-70%, preferably 20-65%, most preferably 30-60%;
2) eight polyureas 0.5-30%, preferably 1-20%, most preferably 2-10%;
3) lubricating base oil, 10-80%, preferably 20-70%, most preferably 30-60%.
Described non-newtonian fluid calcium naphthenate is at infrared spectrum 873cm
-1-886cm
-1place occurs that crystal form calcium carbonate charateristic avsorption band, total basicnumber are 250mgKOH/g-450mgKOH/g, preferably 300mgKOH/g-400mgKOH/g.Described non-newtonian fluid calcium naphthenate is to be transformed and obtained by transforming agent by newton's body calcium naphthenate.And in newton's body calcium naphthenate, contain unformed carbonic acid calcium, 860cm in infrared spectrum
-1-865cm
-1there is charateristic avsorption band in place.Described newton's body calcium naphthenate is petroleum naphthenic acid calcium or synthetic calcium naphthenate, and its total basicnumber is 250mgKOH/g-450mgKOH/g, and preferably 300mgKOH/g-400mgKOH/g, changes into after non-newtonian fluid calcium naphthenate, and its base number is constant.
Said eight polyureas have following structure:
R wherein
1can be alkyl, cycloalkyl or aryl, the carbon number of alkyl or cycloalkyl can be 8～24, preferably 10～18, and aryl can be the phenyl of phenyl or replacement, the phenyl that preferably phenyl or C1～C3 alkyl or halogen replace.
R wherein
2can be alkylidene group or arylidene, the carbon number of alkylidene group can be 2～12, preferably 2～8, and arylidene can be phenylene or biphenylene.
R wherein
3can be that carbon number is 6～30, preferably 6～20 arylidene, alkylidene group or cycloalkylidene, preferably at least one in tolyl, methyldiphenyl base, dicyclohexyl methyl, an xylylene and hexylidene.
Described lubricant base can be mineral oil, synthetic oil, vegetables oil or their mixture, and 100 ℃ of kinematic viscosities are 4-150mm
2/ s, preferably 10-60mm
2/ s.Synthetic oil can be poly-a-olefin oil (PAO), ester class oil, alkyl-silicone oil, Fischer-Tropsch synthesis oil etc.
In lubricating grease of the present invention, can also contain various additives, as oxidation inhibitor, extreme pressure anti-wear additives, rust-preventive agent etc.The preferred arylamine kind antioxidant of oxidation inhibitor wherein, accounts for the 0.1%-5% of lubricating grease gross weight, and preferably 0.2%-1%, can be pentanoic, phenyl-a-naphthylamine, di-iso-octyldiphenylamine or their mixture, preferably di-iso-octyldiphenylamine.Extreme pressure anti-wear additives can be dithio Acidic phosphates zinc, dithio dialkyl amido formic acid molybdenum, dithio dialkyl amido lead formiate, triphenyl thiophosphatephosphorothioate, organic molybdenum complex compound, olefine sulfide, molybdenumdisulphide, tetrafluoroethylene, thiophosphoric acid molybdenum, clorafin, dibutyl dithiocaarbamate antimony, tungsten disulfide, Selenium Sulfide, fluorographite, calcium carbonate and zinc oxide; Rust-preventive agent can be barium mahogany sulfonate, petroleum sodium sulfonate, benzothiazole, benzotriazole, zinc naphthenate and alkenyl succinic acid.
The preparation method of described calcium naphthenate base eight polyurea greases, comprising:
(1) in reactor A, newton's body calcium naphthenate, part base oil and transforming agent are mixed, heated, treat material retrogradation, the dehydration that heats up, cooling;
(2) in the product of reactor A or in reactor B, add part base oil and monoamine, add vulcabond, first add diamines to react, again add diamines to react, finally add monoamine to react, the mol ratio of each added vulcabond, diamines, diamines and monoamine is 4:2:1:2 again;
(3) mixing of materials in reactor A is even, or mix after the material of reactor A and B is merged, be warmed up to 200-220 ℃ of constant temperature refining, cooling, add surplus base oil, add necessary additive, obtain finished product.
Specifically, preparation method of the present invention can complete in a reactor, also can use two reactors.
Specifically, in step (1), to 50-80 ℃, add successively required transforming agent to react newton's body calcium naphthenate, part base oil Hybrid Heating, preferably add rear stirring about 10 minutes at every turn, react fully, all transforming agents add rear intensification, preferably at 80-90 ℃ of constant temperature 60-90 minute, when reaction system is by oily retrogradation, be warming up to 100-120 ℃, preferably 105-110 ℃ of dehydration is cooled to below 105 ℃ after water has taken off.
Described newton's body calcium naphthenate is petroleum naphthenic acid calcium or synthetic calcium naphthenate, and its total basicnumber is 250-450mgKOH/g, preferably 300-400mgKOH/g.
Described transforming agent is selected from fatty alcohol, lipid acid, aliphatic ketone, alkanoic, aliphatic amide, cycloalkanes amine, cycloalkanol, the ether of C1-C5, and one or more in calcium carbonate, boric acid, phosphonic acids, carbonic acid gas, phenol, aromatic alcohol, aromatic amine, C8-C20 alkyl benzene sulphonate (ABS), water etc., preferably Witco 1298 Soft Acid, C16-C62 naphthenic acid, methyl alcohol, butanols, acetic acid and water.The add-on of transforming agent is the 2-30% of newton's body calcium naphthenate weight, preferably 6-22%.
In step (2), in the product of step (1) or in another reactor, add part base oil and vulcabond, stir, add diamines, reaction 2-8 minute, again add diamine reactant 2-8 minute, add monoamine reaction 2-8 minute, the mol ratio of each added vulcabond, diamines, diamines and monoamine is 4:2:1:2.
Said vulcabond structure is OCN-R
3-NCO, R
3can be that carbon number is 6～30, preferably 6～20 arylidene, alkylidene group or cycloalkylidene, preferred tolyl, methyldiphenyl base, dicyclohexyl methyl, an xylylene, hexylidene etc.For example described vulcabond can be tolylene diisocyanate (TDI), methyldiphenyl group diisocyanate (MDI), 1,6-hexylidene diisocyanate (HDI), dicyclohexyl methyl vulcabond (HMDI), or at least one in an xylylene vulcabond (XDI) etc.
Said monoamine can be aliphatic amide, aliphatic cyclic amine or arylamine, and structural formula is R
1-NH
2, R wherein
1can be alkyl, cycloalkyl or aryl, the carbon number of alkyl or cycloalkyl can be 8～24, preferably 10～18, and aryl can be the phenyl of phenyl or replacement, the phenyl that preferably phenyl or C1～C3 alkyl or halogen replace.Preferred monoamine can be the arylamine that is selected from aniline, m-chloro aniline, p-Chlorobenzoic acid amide, para-totuidine, and/or is selected from the aliphatic amide of amino dodecane, tetradecy lamine, cetylamine, stearylamine.
Said diamines can be aliphatic amide or arylamine, and structural formula is NH
2-R
2-NH
2, R wherein
2can be alkylidene group or arylidene, the carbon number of alkylidene group can be 2～12, preferably 2～8, and arylidene can be phenylene or biphenylene.Preferred diamines can be to be selected from Ursol D, O-Phenylene Diamine, 4,4, the aromatic amine of-benzidine and/or be selected from quadrol, propylene diamine, 1, the straight-chain fatty amine of 6-hexanediamine.
In step (3), the product of step (1) and step (2) is mixed to rear intensification, preferably 100-120 ℃ of constant temperature 10-20 minute, is finally warmed up to 200-220 ℃ of constant temperature 5-10 minute; Be cooled to 150-160 ℃, add surplus lubricating base oil, treat that temperature is cooled to 100-120 ℃, add necessary additive, stir circulating filtration, homogenizing, the degassed finished product that obtains.
Lubricating grease of the present invention, has good extreme pressure anti-wear and long lubricating life, meanwhile, also has the performances such as good adhesivity, water resisting property, colloid stability, high dropping point, heat-resistant quality, non-corrosibility, resistance to salt(spray)fog.This product preparation process is simple, constant product quality.
Accompanying drawing explanation
Fig. 1 is the infrared spectrum of the lubricating grease of embodiment 1 preparation.As can be seen from the figure, at 873cm
-1-886cm
-1there is crystal form calcium carbonate charateristic avsorption band in place.Meanwhile, at 3300cm
-1-3323cm
-1the peak at place is in eight polyureas molecules-the stretching vibration absorption peak of NH-.
Fig. 2 is the infrared analysis spectrogram of eight polyureas in the lubricating grease of embodiment 1 preparation.As can be seen from the figure, 3310～3323cm
-1the peak at place is the stretching vibration absorption peak of NH-in eight polyureas molecules, 1630cm
-1the peak at place is in eight polyureas molecules-vibration absorption peak of CO-.
Fig. 3 is the nuclear magnetic resonance spectroscopy spectrogram of eight polyureas in the lubricating grease of embodiment 1 preparation.As can be seen from the figure, the peak of δ=155HZ left and right is in eight polyureas molecules-chemical shift of CO-.
Fig. 4 is the Electrospray Ionization Mass Spectrometry spectrogram of eight polyureas in the lubricating grease of embodiment 1 preparation.As can be seen from the figure, the mass-to-charge ratio of sample is 1721.4m/z, and the relative molecular mass of this and eight polyurea compounds matches.
Embodiment
In embodiment, the method for calculation of each component concentration are as follows:
Overbased or the high base number calcium naphthenate raw materials quality+transforming agent total mass of non-newtonian fluid calcium naphthenate %=()/lubricating grease total mass.Transforming agent all counts in the content of non-newtonian fluid calcium naphthenate.
In embodiment, overbased and high base number calcium naphthenate raw material is from Xinjiang Land Fine Petrochemical Co., Ltd, also can be according to the preparation method of a CN101885677A(highly basic calcium naphthenate) disclosed method preparation.
In comparative example, calcium sulfonate with high base number raw material is purchased from Jinzhou Hui Fatianhe Chemical Co., Ltd..
Feed composition: naphthenate with superhigh base number calcium (total basicnumber is 400mgKOH/g, 30kg); 150BS(30kg); Naphthenic acid (total acid value is 120mgKOH/g, acid content 70%, 2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (0.69kg); Quadrol (0.23kg); MDI(1.28kg); 500SN(18kg).
Step 1: a volume be 160L and with heating, stirring, circulation, cooling normal-pressure reaction kettle in to add 30kg total basicnumber be that naphthenate with superhigh base number calcium and 100 ℃ of kinematic viscosity of 30kg of 400mgKOH/g are 31mm
2the HVI150BS lubricating base oil of/s, stirs, and heats to 50 ℃, constant temperature 10 minutes; Add 2.8kg naphthenic acid, temperature is controlled at 50 ℃ of left and right, stirs 10 minutes; The aqueous solution that adds 4 times of the acetic acid of 0.56kg and acetic acid weight, stirs 10 minutes; Add 2.32kg boric acid and with 6 times of consoluet boric acid solution of hot water, stir, 80 ℃ of constant temperature 30 minutes, material retrogradation; Under stirring, be warmed up to 110 ℃, keep 60 minutes, dehydration.
Step 2: another volume be 10L and with heating, stirring, circulation, cooling normal-pressure reaction kettle in to add 5kg100 ℃ of kinematic viscosity be 11mm
2the HVI500SN lubricating base oil of/s and 1.28kg MDI are preheating to 90 ℃, under rapid stirring, add 0.15kg quadrol, stir 4 minutes, under rapid stirring, again add 0.08kg quadrol, stir 4 minutes, add 0.69kg stearylamine to stir 4 minutes, the mol ratio of added MDI, quadrol, quadrol and stearylamine is 4:2:1:2 successively, 120 ℃ of constant temperature 20 minutes, obtains eight polyureas.
Gained eight polyureas are all squeezed in a upper still, stirred, be finally warmed up to 200 ℃ of constant temperature 5 minutes.Then, be cooled to 160 ℃, add 13kg lubricating base oil 500SN; Treat that temperature is cooled to 110 ℃, circulating filtration, homogenizing, the degassed finished product that obtains.Assay is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 41.5%; Eight polyureas 2.6%; Lubricating base oil 55.9%.
The eight polyureas molecular structural formulas that contain in component are:
By above-mentioned steps 2 same methods, prepare a small amount of eight polyureas, with sherwood oil (60～90 ℃ of boiling points) washing, filtration is precipitated again, and gained precipitation obtains eight polyurea compounds after drying.Its infrared spectrum, nuclear magnetic resonance spectroscopy spectrogram, Electrospray Ionization Mass Spectrometry spectrogram are shown in respectively Fig. 2, Fig. 3, Fig. 4.
Embodiment 2
Feed composition: naphthenate with superhigh base number calcium (total basicnumber is 420mgKOH/g, 30kg); 150BS(30kg); Naphthenic acid (total acid value is 120mgKOH/g, acid content 70%, 2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (0.69kg); Quadrol (0.23kg); MDI(1.28kg); 500SN(18kg).
A volume be 160L and with heating, stirring, circulation, cooling normal-pressure reaction kettle in to add 30kg total basicnumber be that naphthenate with superhigh base number calcium and 100 ℃ of kinematic viscosity of 30kg of 420mgKOH/g are 31mm
2the HVI150BS lubricating base oil of/s, stirs, and heats to 80 ℃, constant temperature 10 minutes; Add 2.8kg naphthenic acid, temperature is controlled at 85 ℃ of left and right, stirs 10 minutes; The aqueous solution that adds 4 times of the acetic acid of 0.56kg and acetic acid weight, stirs 10 minutes; Add 2.32kg boric acid and with 6 times of consoluet boric acid solution of hot water, stir, 95 ℃ of constant temperature 30 minutes, material retrogradation; Under stirring, be warmed up to 110 ℃, keep 60 minutes, dehydration; Cooling to 90 ℃, to add by 18kg100 ℃ of kinematic viscosity be 11mm
2the 1.28kg MDI rapid stirring that the HVI500SN lubricating base oil of/s dissolves 4 minutes, under rapid stirring, add 0.15kg quadrol, stir 4 minutes, under rapid stirring, again add 0.08kg quadrol, stir 4 minutes, add 0.69kg stearylamine to stir 4 minutes, the mol ratio of added MDI, quadrol, quadrol and stearylamine is 4:2:1:2 successively, 120 ℃ of constant temperature 20 minutes, is finally warmed up to 200 ℃ of constant temperature 5 minutes.Then, cool; Treat that temperature is cooled to 110 ℃, circulating filtration, homogenizing, the degassed finished product that obtains.Assay is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 41.5%; Eight polyureas 2.6%; Lubricating base oil 55.9%.
Embodiment 3
Feed composition: naphthenate with superhigh base number calcium (total basicnumber is 400mgKOH/g, 30kg); 150BS(10kg); Witco 1298 Soft Acid (2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Lauryl amine (0.52kg); Quadrol (0.26kg); MDI(1.42kg); 500SN(38kg).
By the method for example 1, prepare naphthenate with superhigh base number calcium base eight polyurea greases, different is to use Witco 1298 Soft Acid, lauryl amine to replace naphthenic acid and stearylamine and each amounts of components to change to some extent, and each performance data of lubricating grease finished product obtaining is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 41.5%; Eight polyureas 2.6%; Lubricating base oil 55.9%.
Embodiment 4
Feed composition: naphthenate with superhigh base number calcium (total basicnumber is 400mgKOH/g, 30kg); 150BS(25kg); Propyl carbinol (2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (0.84kg; Quadrol (0.28kg); TDI(1.08kg); 500SN(23kg).
By the method for example 1, prepare naphthenate with superhigh base number calcium base eight polyurea greases, different is to use propyl carbinol, tolylene diisocyanate (TDI) to replace naphthenic acid and MDI, and each performance data of lubricating grease finished product obtaining is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 39.6%; Eight polyureas 2.6%; Lubricating base oil 57.8%.
Embodiment 5
Feed composition: naphthenate with superhigh base number calcium (total basicnumber is 400mgKOH/g, 30kg); 150BS(15kg; Naphthenic acid (2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (0.69kg); Quadrol (0.23kg); MDI(1.28kg); 500SN(7kg); To right-di-iso-octyldiphenylamine (0.4kg).
By the method for example 1, prepare naphthenate with superhigh base number calcium base eight polyurea greases, the amount of different is 500SN is 7kg, thereby make each material rate that larger change occur, use is 0.4kg to right-di-iso-octyldiphenylamine in addition, and each performance data of lubricating grease finished product obtaining is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 59.2%; Eight polyureas 3.6%; Lubricating base oil 36.5%; To right-di-iso-octyldiphenylamine 0.7%.
Embodiment 6
Feed composition: naphthenate with superhigh base number calcium (total basicnumber is 400mgKOH/g, 30kg); 150BS(25kg); Naphthenic acid (2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (2.07kg); Quadrol (0.69kg; MDI(3.84kg); 500SN(18.6kg).
By the method for example 1, prepare naphthenate with superhigh base number calcium base eight polyurea greases, the consumption of different is stearylamine, quadrol, MDI and base oil changes to some extent, and each performance data of lubricating grease finished product obtaining is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 41.8%; Eight polyureas 7.8%; Lubricating base oil 50.4%.
Embodiment 7
Feed composition: naphthenate with superhigh base number calcium (total basicnumber is 400mgKOH/g, 30kg); PAO 40(25kg); Naphthenic acid (2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (0.69kg; Quadrol (0.23kg); MDI(1.28kg); PAO 10(23kg); Dithio Acidic phosphates zinc (2kg), molybdenum dialkyldithiocarbamacompositions (1kg), tungsten disulfide (2kg), two selenizing tungsten (2kg), to right-di-iso-octyldiphenylamine (0.2kg).
By the method for example 1, prepare naphthenate with superhigh base number calcium base eight polyurea greases, different is that 10(100 ℃ of kinematic viscosity of use full synthetic oil poly & Alpha ,-olefin oil PAO is 11mm
2/ s) and PAO 40(100 ℃ kinematic viscosity be 41mm
2/ s) replace respectively 500SN and 150BS, and before homogenizing, add additive dithio Acidic phosphates zinc, molybdenum dialkyldithiocarbamacompositions, tungsten disulfide, two selenizing tungsten, each performance data of lubricating grease finished product that right-di-iso-octyldiphenylamine (0.2kg) is obtained is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 38.3%; Eight polyureas 2.4%; Lubricating base oil 51.6%; Dithio Acidic phosphates zinc 2.2%; Molybdenum dialkyldithiocarbamacompositions 1.1%; Tungsten disulfide 2.1%; Two selenizing tungsten 2.1%; To right-di-iso-octyldiphenylamine 0.2%.
Embodiment 8
Feed composition: high base number calcium naphthenate (total basicnumber is 320mgKOH/g, 30kg); 150BS(25kg); Naphthenic acid (2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (0.69kg); Quadrol (0.23kg); MDI(1.28kg); 500SN(23kg).
By the method for example 1, prepare high base number calcium naphthenate base eight polyurea greases, the total basicnumber of the high base number calcium naphthenate that different is uses is 320mgKOH/g, and each performance data of lubricating grease finished product obtaining is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 41.5%; Eight polyureas 2.6%; Lubricating base oil 55.9%.
Embodiment 9
Feed composition: high base number calcium naphthenate (total basicnumber is 360mgKOH/g, 30kg); 150BS(25kg); Naphthenic acid (2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (0.69kg); Quadrol (0.23kg); MDI(1.28kg); 500SN(23kg).
By the method for example 1, prepare high base number calcium naphthenate base eight polyurea greases, the total basicnumber of the high base number calcium naphthenate that different is uses is 360mgKOH/g, and each performance data of lubricating grease finished product obtaining is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 41.5%; Eight polyureas 2.6%; Lubricating base oil 55.9%.
Feed composition: naphthenate with superhigh base number calcium (total basicnumber is 400mgKOH/g, 30kg); 150BS(25kg); Naphthenic acid (2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (0.78kg); 1,6-hexanediamine (0.34kg); MDI(1.08kg); 500SN(23kg).
By the method for example 1, prepare naphthenate with superhigh base number calcium base eight polyurea greases, different is to use 1,6-hexanediamine to replace quadrol, and each performance data of lubricating grease finished product obtaining is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 41.5%; Eight polyureas 2.6%; Lubricating base oil 55.9%.
Embodiment 11
Feed composition: naphthenate with superhigh base number calcium (total basicnumber is 400mgKOH/g, 30kg); 150BS(25kg); Naphthenic acid (2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (0.79kg); Ursol D (0.32kg); MDI(1.10kg); 500SN(23kg).
By the method for example 1, prepare naphthenate with superhigh base number calcium base eight polyurea greases, different is to use Ursol D to replace quadrol, and each performance data of lubricating grease finished product obtaining is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 41.5%; Eight polyureas 2.6%; Lubricating base oil 55.9%.
Embodiment 12
Feed composition: naphthenate with superhigh base number calcium (total basicnumber is 400mgKOH/g, 30kg); 150BS(25kg); Naphthenic acid (2.8kg); Propyl carbinol (1kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (0.69kg); Quadrol (0.23kg); MDI(1.28kg); 500SN(23kg).
By the method for example 1, prepare naphthenate with superhigh base number calcium base eight polyurea greases, different is that transforming agent has increased propyl carbinol, and adds after adding naphthenic acid, and each performance data of lubricating grease finished product simultaneously obtaining is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium naphthenate 41.5%; Eight polyureas 2.6%; Lubricating base oil 55.9%.
Comparative example 1
Feed composition: calcium sulfonate with high base number (total basicnumber is 320mgKOH/g, 30kg); 150BS(25kg); Witco 1298 Soft Acid (2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); 500SN(25.2kg); To right-di-iso-octyldiphenylamine (0.2kg).
A volume be 110L and with heating, stirring, circulation, cooling normal-pressure reaction kettle in to add 30kg total basicnumber be the calcium sulfonate with high base number of 320mgKOH/g and the HVI150BS lubricating base oil that 100 ℃ of kinematic viscosity of 25kg are 31mm2/s, stir, heat to 80 ℃, constant temperature 10 minutes; Add 2.8kg Witco 1298 Soft Acid, temperature is controlled at 80 ℃ of left and right, stirs 10 minutes; The aqueous solution that adds 4 times of the acetic acid of 0.56kg and acetic acid weight, stirs 10 minutes; Add 2.32kg boric acid and with 6 times of consoluet boric acid solution of hot water, stir, 80 ℃ of constant temperature 30 minutes, material retrogradation; Under stirring, be warmed up to 110 ℃, keep 60 minutes, dehydration; Finally be warmed up to 200 ℃ of constant temperature 5 minutes, add 25.2kg lubricating base oil 500SN; Treat that temperature is cooled to 110 ℃, add 0.2kg to stir after 10 minutes right-di-iso-octyldiphenylamine, circulating filtration, homogenizing, the degassed finished product that obtains.Assay is in Table 1.
Comparative example 2
Feed composition: calcium sulfonate with high base number (total basicnumber is 320mgKOH/g, 30kg); 150BS(30kg); Witco 1298 Soft Acid (2.8kg); Acetic acid (0.56kg); Boric acid (2.32kg); Stearylamine (1.5kg); MDI(0.7kg); 500SN(18kg); To right-di-iso-octyldiphenylamine (0.2kg).
By the method for example 1, prepare calcium sulfonate with high base number base two polyurea greases, different is that the calcium sulfonate with high base number that high base number calcium naphthenate is 320mgKOH/g with total basicnumber replaces and do not contain diamines, and each performance data of lubricating grease finished product obtaining is in Table 1.
In the lubricating grease that the present embodiment obtains, take lubricating grease weight as benchmark, consist of: non-newtonian fluid calcium sulphonate 41.5%; Two polyureas 2.6%; Lubricating base oil 55.9%.
Each lubricating grease properties of sample data of table 1
Claims (19)
1. calcium naphthenate base eight polyurea greases, take lubricating grease weight as benchmark, comprise following component:
1) non-newtonian fluid calcium naphthenate 10-70%; 2) eight polyureas 0.5-30%; 3) lubricating base oil, 10-80%.
2. according to lubricating grease claimed in claim 1, wherein take lubricating grease weight as benchmark, comprise following component:
1) non-newtonian fluid calcium naphthenate 20-65%; 2) eight polyureas 1-20%; 3) lubricating base oil 20-70%.
3. according to lubricating grease claimed in claim 1, wherein said non-newtonian fluid calcium naphthenate is transformed and is obtained by newton's body calcium naphthenate, and its total basicnumber is 250-450mgKOH/g.
4. according to lubricating grease claimed in claim 1, wherein, said eight polyureas have following structure:
Wherein, R
1alkyl, cycloalkyl or aryl, R
2alkylidene group or arylidene, R
3arylidene, alkylidene group or cycloalkylidene.
5. according to lubricating grease claimed in claim 4, wherein, R
1the phenyl of phenyl or replacement, or the carbon number alkyl or cycloalkyl that is 8～24; R
2that phenylene or biphenylene or carbon number are 2～12 alkylidene group; R
3that carbon number is 6～30 arylidene, alkylidene group or cycloalkylidene.
6. according to lubricating grease claimed in claim 4, wherein, R
1the phenyl that phenyl or C1～C3 alkyl or halogen replace, or carbon number be 10～18 alkyl or cycloalkyl, R
2phenylene or biphenylene, or the carbon number alkylidene group that is 2～8; R
3be selected from least one in tolyl, methyldiphenyl base, dicyclohexyl methyl, an xylylene and hexylidene.
7. the preparation method of described calcium naphthenate base eight polyurea greases of one of claim 1～6, comprising:
(1) in reactor A, newton's body calcium naphthenate, part base oil and transforming agent are mixed, heated, treat material retrogradation, the dehydration that heats up, cooling;
(2) in the product of reactor A or in reactor B, add part base oil and vulcabond, first add diamines to react, again add diamines to react, finally add monoamine to react, the mol ratio of each added vulcabond, diamines, diamines and monoamine is 4:2:1:2 again;
(3) mixing of materials in reactor A is even, or mix after the material of reactor A and B is merged, be warmed up to 200-220 ℃ of constant temperature refining, cooling, add surplus base oil, add necessary additive, obtain finished product.
Specifically, preparation method of the present invention can complete in a reactor, also can use two reactors.
8. according to preparation method claimed in claim 7, in step (1), newton's body calcium naphthenate, part base oil Hybrid Heating are arrived to 50-80 ℃, add successively required transforming agent to react, all transforming agents add rear intensification, at 80-90 ℃ of constant temperature 60-90 minute, when reaction system retrogradation, be warming up to 100-120 ℃ of dehydration, cooling after water has taken off.
9. according to preparation method claimed in claim 7, in step (2), in the product of step (1) or in another reactor, add part base oil and vulcabond, add diamines, reaction 2-8 minute, adds diamine reactant 2-8 minute again, adds monoamine reaction 2-8 minute.
10. according to preparation method claimed in claim 7, in step (3), the product of step (1) and step (2) is mixed to rear intensification, at 100-120 ℃ of constant temperature 10-20 minute, be finally warmed up to 200-220 ℃ of constant temperature 5-10 minute; Be cooled to 150-160 ℃, add surplus lubricating base oil, treat that temperature is cooled to 100-120 ℃, add necessary additive, stir circulating filtration, homogenizing, degassed.
11. according to preparation method claimed in claim 7, and described newton's body calcium naphthenate is petroleum naphthenic acid calcium or synthetic calcium naphthenate, and its total basicnumber is 250-450mgKOH/g.
12. according to preparation method claimed in claim 7, said transforming agent is selected from fatty alcohol, lipid acid, aliphatic ketone, alkanoic, aliphatic amide, cycloalkanes amine, cycloalkanol, the ether of C1-C5, and one or more in calcium carbonate, boric acid, phosphonic acids, carbonic acid gas, phenol, aromatic alcohol, aromatic amine, C8-C20 alkyl benzene sulphonate (ABS), C16-C62 naphthenic acid, water, the add-on of transforming agent is the 2-30% of newton's body calcium naphthenate weight.
13. according to preparation method claimed in claim 7, and said transforming agent is selected from Witco 1298 Soft Acid, C16-C62 naphthenic acid, methyl alcohol, butanols, acetic acid, water, and the add-on of transforming agent is the 6-22% of newton's body calcium naphthenate weight.
14. according to preparation method claimed in claim 7, and wherein, said monoamine structural formula is R
1-NH
2, R wherein
1the phenyl that phenyl or C1～C3 alkyl or halogen replace, or the carbon number alkyl or cycloalkyl that is 10～18.
15. according to preparation method claimed in claim 7, and wherein, said monoamine is the arylamine that is selected from aniline, m-chloro aniline, p-Chlorobenzoic acid amide and/or para-totuidine, and/or is selected from the aliphatic amide of amino dodecane, tetradecy lamine, cetylamine and/or stearylamine.
16. according to preparation method claimed in claim 7, and wherein, said diamines structural formula is NH
2-R
2-NH
2, R wherein
2be alkylidene group or arylidene, the carbon number of alkylidene group is 2～12, and arylidene is phenylene or biphenylene.
17. according to preparation method claimed in claim 7, and wherein, said diamines is selected from Ursol D, O-Phenylene Diamine, 4,4, the aromatic amine of-benzidine, and/or be selected from quadrol, propylene diamine, 1, the straight-chain fatty amine of 6-hexanediamine.
18. according to preparation method claimed in claim 7, and wherein, said vulcabond structure is OCN-R
3-NCO, R
3that carbon number is 6～30 arylidene, alkylidene group or cycloalkylidene.
19. according to preparation method claimed in claim 7, and wherein, described vulcabond is selected from tolylene diisocyanate, methyldiphenyl group diisocyanate, hexamethylene vulcabond, dicyclohexyl methyl vulcabond, or at least one in an xylylene vulcabond.
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| CN102417853A (en) * | 2010-09-27 | 2012-04-18 | 中国石油化工股份有限公司 | Calcium sulfonate octaurea lubricating grease and preparation method thereof |
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| CN102417853A (en) * | 2010-09-27 | 2012-04-18 | 中国石油化工股份有限公司 | Calcium sulfonate octaurea lubricating grease and preparation method thereof |
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| 李玲等: "高碱性环烷酸钙的合成与性能研究", 《石油炼制与化工》, vol. 42, no. 4, 30 April 2011 (2011-04-30), pages 62 - 66 * |
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| CN104212535A (en) * | 2013-05-31 | 2014-12-17 | 中国石油化工股份有限公司 | Calcium naphthenate-based octaurea lubricating grease and its preparation method |
| CN104212535B (en) * | 2013-05-31 | 2016-08-24 | 中国石油化工股份有限公司 | A kind of calcium naphthenate base octa-polyurea lubricating grease and preparation method thereof |
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