EP0006796A1 - Process for the preparation of overbased metalliferous detergent-dispersant agents for lubricating oils and product obtained - Google Patents
Process for the preparation of overbased metalliferous detergent-dispersant agents for lubricating oils and product obtained Download PDFInfo
- Publication number
- EP0006796A1 EP0006796A1 EP79400391A EP79400391A EP0006796A1 EP 0006796 A1 EP0006796 A1 EP 0006796A1 EP 79400391 A EP79400391 A EP 79400391A EP 79400391 A EP79400391 A EP 79400391A EP 0006796 A1 EP0006796 A1 EP 0006796A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- calcium
- parts
- weight
- magnesium
- mixture
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000002270 dispersing agent Substances 0.000 title claims abstract description 32
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title description 11
- 239000003795 chemical substances by application Substances 0.000 title description 2
- 239000000203 mixture Substances 0.000 claims abstract description 89
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 79
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 79
- -1 alkylene glycol Chemical compound 0.000 claims abstract description 72
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 150000004996 alkyl benzenes Chemical class 0.000 claims abstract description 54
- 239000003921 oil Substances 0.000 claims abstract description 28
- 238000010790 dilution Methods 0.000 claims abstract description 18
- 239000012895 dilution Substances 0.000 claims abstract description 18
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 16
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 15
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 10
- 239000012429 reaction media Substances 0.000 claims abstract description 9
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 8
- 239000011575 calcium Substances 0.000 claims description 152
- 229910052791 calcium Inorganic materials 0.000 claims description 146
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 144
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 83
- 239000011777 magnesium Substances 0.000 claims description 64
- 229910052749 magnesium Inorganic materials 0.000 claims description 61
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 60
- 229910052788 barium Inorganic materials 0.000 claims description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 14
- 239000003153 chemical reaction reagent Substances 0.000 claims description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 10
- 239000000654 additive Substances 0.000 claims description 8
- 239000000395 magnesium oxide Substances 0.000 claims description 8
- 150000001336 alkenes Chemical class 0.000 claims description 7
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 7
- 239000000920 calcium hydroxide Substances 0.000 claims description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 238000006277 sulfonation reaction Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000005987 sulfurization reaction Methods 0.000 claims description 5
- 150000003460 sulfonic acids Chemical class 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 150000004679 hydroxides Chemical class 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 6
- FQNGWRSKYZLJDK-UHFFFAOYSA-N [Ca].[Ba] Chemical compound [Ca].[Ba] FQNGWRSKYZLJDK-UHFFFAOYSA-N 0.000 claims 2
- 150000002739 metals Chemical class 0.000 claims 1
- 239000003208 petroleum Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 2
- 150000001341 alkaline earth metal compounds Chemical class 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 37
- 239000000047 product Substances 0.000 description 16
- 239000002585 base Substances 0.000 description 13
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 8
- 230000007935 neutral effect Effects 0.000 description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 6
- 235000011941 Tilia x europaea Nutrition 0.000 description 6
- 239000004571 lime Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 125000002947 alkylene group Chemical group 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- 229960002317 succinimide Drugs 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- CYEJMVLDXAUOPN-UHFFFAOYSA-N 2-dodecylphenol Chemical compound CCCCCCCCCCCCC1=CC=CC=C1O CYEJMVLDXAUOPN-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 2
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- NMRPBPVERJPACX-UHFFFAOYSA-N (3S)-octan-3-ol Natural products CCCCCC(O)CC NMRPBPVERJPACX-UHFFFAOYSA-N 0.000 description 1
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 description 1
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 1
- JOONSONEBWTBLT-UHFFFAOYSA-N 2-tetradecylphenol Chemical class CCCCCCCCCCCCCCC1=CC=CC=C1O JOONSONEBWTBLT-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004435 Oxo alcohol Substances 0.000 description 1
- 241001080024 Telles Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 239000010710 diesel engine oil Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007788 liquid Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000010690 paraffinic oil Substances 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 150000003017 phosphorus Chemical class 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 229940087291 tridecyl alcohol Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
- C10M159/24—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing sulfonic radicals
Definitions
- the subject of the present invention is a process for the preparation of overbased metal detergent-dispersants, in particular for lubricating oils.
- the Applicant has found a method for obtaining metal detergent-dispersant additives of TBN (Total Basic Number - Standard ASTM D 2896) greater than 200, in a simple and rapid manner, in the presence of alkylene glycol in small quantities and in the absence of monoalcohol.
- TBN Total Basic Number - Standard ASTM D 2896
- the carbonation operation can be carried out in one or more times, by introducing the necessary quantity defined above of alkaline earth compound and alkylene glycol, in one or more times, each introduction of alkaline compound. earthy and alkylene glycol being followed by a carbonation operation.
- sulfurized alkylphenate denotes any solution containing from 30 to 80% by weight, preferably from 40 to 70% by weight of a sulfurized alkylphenate in a dilution oil which may or may not be the same as that used. implemented to carry out the process which is the subject of the invention.
- alkylbenzene sulfonate will denote any solution containing from 40 to 95% by weight, preferably from 55 to 85% by weight of an alkylbenzene sulfonate in a dilution oil which may or may not be the same than that used to carry out the process which is the subject of the invention.
- sulfurized alkylphenates which can be used, mention may be made of those obtained by sulfurization with sulfur of an alkylphenol preferably carrying one or more C 9 -C 15 alkyl substituents (such as nonyl, decyl, dodecyl or tetradecylphenols). presence of an alkaline earth base and an alkylene glycol, optionally followed by carbonation with carbon dioxide.
- alkylbenzene sulfonates which can be used, there may be mentioned the salts of sulfonic acids (of molecular weight preferably greater than 400) natural obtained by sulfonating synthetic oil or cuts obtained by the sulfonation of alkylbenzenes déri- v a n t olefin or olefin polymers of C 15 - C 30 and alkaline earth metals such as calcium, barium, magnesium. ..
- the alkaline-earth compound to be used can consist of oxides or hydroxides of calcium, barium, magnesium ... taken alone or as a mixture; the metal from which the alkaline earth alkylbenzene sulfonate and the alkaline earth alkylphenate used may or may not be the same as that or those contained in the alkaline earth compound.
- the amount of oil that can be used is such that the amount of oil present in the final product (including that from the sulfurized alkylphenate and the starting alkylbenzene sulfonate) is between 20 and 60%, from preferably between 25 and 55% of said product.
- alkylene glycols which can be used, mention may very particularly be made of glycol; these can optionally be present in mixture with up to 200% by weight of a monoalcohol such as ethylhexanol, tridecyl alcohol, C 8 -C 14 oxo alcohols and in general , the alcohols having a boiling point higher than 120 ° C and preferably higher than 150 ° C.
- a monoalcohol such as ethylhexanol, tridecyl alcohol, C 8 -C 14 oxo alcohols and in general , the alcohols having a boiling point higher than 120 ° C and preferably higher than 150 ° C.
- Another variant of the process which is the subject of the invention consists in preparing, in situ before the carbonation operation, the alkaline earth metal alkyl benzene sulfonate by the action of an oxide or a hydroxide of said alkali metal. - earthy on an alkylbenzene sulfonic acid as defined above, in the presence of oil and optionally alkylene glycol, at a temperature between 40 and 110 ° C, the amount of alkali metal oxide or hydroxide- earthy and of oil to be used being such that the alkylbenzene sulfonate obtained has a TBN less than or equal to 150, preferably less than or equal to 50.
- the process which is the subject of the invention is very particularly advantageous for preparing detergent-dispersants with a TBN greater than or equal to 250 and having a large percentage by weight of calcium or barium (at least 9%).
- the process which is the subject of the invention is also advantageous for preparing detergent-dispersants with a TBN greater than 200 and containing at least 2% by weight of magnesium and optionally at least 0.5% by weight of calcium.
- magnesium oxide any type of magnesium oxide can be used, however, "active" magnesium oxide is preferred.
- active magnesium oxide denotes magnesium oxide Mg 0 with a specific surface greater than or equal to 80 m2 / g, for example between 100 and 170m2 / g.
- magnesium oxide Mg 0 with a specific surface greater than or equal to 80 m2 / g, for example between 100 and 170m2 / g.
- Maglite DE marketed by Merck
- Feumag marketed by Rhône-Poulenc Industries
- the present invention also relates to detergents-dispersants of high alkalinity obtained by the process described above. These have the advantage of very good compatibility with viscous oils as well as a very low rate of sediment. They can be added to lubricating oils in amounts depending on the TBN of said detergent-dispersants, and depending on the future use of said oils; thus for a petrol engine oil, the amount of detergent-dispersant of TBN 200 - 300 for example to be added, is generally between 1 and 3.5%; ; for a diesel engine oil, it is generally between 1.8 and 5%; for a marine engine oil, this can be up to 25%.
- the lubricating oils which can thus be improved can be chosen from a wide variety of lubricating oils, such as lubricating oils of naphthenic base of paraffinic base and of mixed base, other hydrocarbon lubricants, for example lubricating oils derived from coal, and synthetic oils, for example alkylene polymers, polymers of the alkylene oxide type and their derivatives, including the alkylene oxide polymers prepared by polymerizing alkylene oxide in the presence water or alcohols, for example ethyl alcohol, esters of dicarboxylic acids, liquid esters of phosphorus acids, alkylbenzenes and dialkyl benzenes, polyphenyls, alkyl biphenyl ethers, polymers of silicon .
- lubricating oils such as lubricating oils of naphthenic base of paraffinic base and of mixed base, other hydrocarbon lubricants, for example lubricating oils derived from coal, and synthetic oils, for example alkylene polymers, polymers of the
- Additional additives may also be present in said lubricating oils alongside the detergent-dispersants obtained according to the process of the invention; mention may, for example, be made of antioxidant, anti-corrosion additives, ashless dispersant additives, etc.
- reaction medium After having readjusted the amount of glycol to its initial value, the reaction medium is carbonated at 145 ° C. using C0 2 for 25 minutes under 260 mm Hg and then 35 minutes at atmospheric pressure. Water is eliminated by carrying with it a little glycol. 2nd phase (elimination of glycol)
- the overbased and carbonated medium is brought to a temperature of 184 ° C. under 30 mm Hg for 1 hour.
- the glycol distills.
- the medium is filtered to remove the sediments and a solution is recovered in 100 N oil of overbased detergent-dispersant which is degassed and the characteristics are shown in Table I.
- Example 1 to 3 The operation described in Examples 1 to 3 is carried out under the same conditions, starting from a 60% solution in 100 N oil of a sulfurized dodecylphenate and calcium carbonate, said solution containing 5.25% of calcium and 2.6% C0 2 and has a TBN of around 148.
- glycol is removed (2nd phase) and the detergent-dispersant solution is filtered (3rd phase) as before Use examples 1 to 3.
- Example 7 The operation described in Example 7 is carried out in the presence of a TBN 200 base stock prepared in Example 7 consisting of a 44/56 mixture of calcium sulphurized dodecylphenate / magnesium alkylbenzene sulphonate.
- Glycol is also used in admixture with decanol.
- Example 7 The operation described in Example 7 is carried out by carrying out the carbonation operation at 140 ° C. at atmospheric pressure for approximately 4 hours without the addition of water.
- Example 7 The operation described in Example 7 is carried out by carrying out the carbonation operation for 2 hours at 160 ° C, adding water after having cooled the medium to 110 ° C and continuing the carbonation for another 2 hours at 110 ° C.
- the medium is heated to 50 ° C. and lime and then glycol are introduced over 30 minutes.
- the medium is heated at 80 ° C. for 30 minutes and a 60% solution in 100 N dilution oil of calcium sulphurized dodecylphenate is introduced, said solution containing 5.5% of calcium being free of C0 2 and with a TBN of around 153.
- the medium is brought to and maintained at 145 ° C. under 260 mm Hg for 20 minutes to completely eliminate the reaction water.
- the eliminated water always carries with it a little glycol.
- the medium is carbonated at 145 ° C. using C0 2 for 25 minutes under 260 mm Hg and then for 35 minutes at atmospheric pressure.
- glycol is removed (3rd phase) and the detergent-dispersant solution is filtered (4th phase) as previously in Examples 1 to 3.
- Example 12 The product of Example 12 is added to an SAE 50 oil with a paraffimic tendency so as to obtain a solution containing 125 millimoles of calcium +. magnesium.
- the solution is stored for 15 days at 20 ° C; we see that the solution remains clear.
- This mixture is brought for 25 days to 80 ° C., then is added to an SAE 30 oil so as to have a concentration of 6.6% by weight of mixture (A).
- the solution is stored for 5 days at 80 ° C.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
Description
La présente invention a pour objet un procédé de préparation de détergents-dispersants métalliques suralcalinisés notamment pour huiles lubrifiantes.The subject of the present invention is a process for the preparation of overbased metal detergent-dispersants, in particular for lubricating oils.
Il est connu d'après le brevet anglais n° 1 015 759 de préparer des détergents-dispersants de haute alcalinité à base d'alkylphénates et d'alkylbenzène sulfonates de métaux alcalino-terreux, par sulfurisation d'un mélange contenant un alkylphénol, un alkylbenzène sulfonate de métal alcalino-terreux, un monoalcool en C8-C18, une base alcalino-terreuse et du glycol, précarbonatation du mélange sulfurisé, alcalinisation du mélange précarbonaté par une base alcalino-terreuse, carbonatation puis élimination du glycol et récupération du détergent-dispersant.It is known from English Patent No. 1,015,759 to prepare detergents-dispersants of high alkalinity based on alkylphenates and alkylbenzene sulfonates of alkaline earth metals, by sulfurization of a mixture containing an alkylphenol, a alkaline earth metal alkylbenzene sulfonate, a C 8 -C 18 monoalcohol, an alkaline earth base and glycol, precarbonation of the sulfurized mixture, alkalization of the precarbonated mixture with an alkaline earth base, carbonation then elimination of the glycol and recovery of the detergent-dispersant.
Un tel précédé présente l'inconvénient de nécessiter l'emploi d'un monoalcool en C8-C18 qu'il faut ensuite recycler sous forme pratiquement anhydre.Such a process has the drawback of requiring the use of a C8-C18 monoalcohol which must then be recycled in practically anhydrous form.
De plus, si un tel procédé est satisfaisant pour la préparation de détergents-dispersants contenant une forte proportion d'alkylphénates, il ne peut toutefois pas être utilisé pour la préparation de détergents-dispersants conte- une forte proportion d'alkylbenzènes sulfonates.In addition, if such a process is satisfactory for the preparation of detergent-dispersants containing a high proportion of alkylphenates, it cannot however be used for the preparation of detergent-dispersants containing a high proportion of alkylbenzene sulfonates.
La demanderesse a trouvé un procédé permettant d'obtenir des additifs détergents-dispersants métalliques de TBN (Total Basic Number - Norme A. S. T. M. D 2896) supérieur à 200, d'une manière simple et rapide, en présence d'alkylène glycol en faible quantité et en l'absence de monoalcool.The Applicant has found a method for obtaining metal detergent-dispersant additives of TBN (Total Basic Number - Standard ASTM D 2896) greater than 200, in a simple and rapid manner, in the presence of alkylene glycol in small quantities and in the absence of monoalcohol.
Le procédé faisant l'objet de l'invention est caractérisé en ce que :
- 1) L'on carbonate à l'aide de gaz carbonique, à une température comprise entre 100 et 250° C, un milieu réactionnel comprenant :
- - un alkylphénate sulfurisé d'un métal alcalino-terreux de TBN compris entre 0 et 170, ledit alkylphénate portant un ou plusieurs substituants alkyles en C6 - C60.
- - un alkylbenzène sulfonate de métal alcalino-terreux de masse moléculaire supérieure à 300 et de TBN inférieur ou égal à 150.
- - un composé alcalino-terreux
- - un alkylène glycol
- - une huile de dilution
selon les quantités suivantes de réactifs : - - de 5 à 60 parties en poids d'alkylphénate sulfurisé pour 100 parties en poids de mélange alkylphénate sulfurisé + alkylbenzène sulfonate,
- - de 95 à 40 parties en poids d'alkylbenzène sulfonate pour 100 parties en poids de mélange alkylphénate sulfurisé + alkylbenzène sulfonate,
- - de 3 à 30 parties en poids de composé alcalino-terreux pour 100 parties en poids de mélange alkylphénate sulfurisé + alkylbenzène sulfonate,
- - de 4 à 60 parties en poids d'alkylène glycol pour 100 parties en poids de mélange alkylphénate sulfurisé + alkylbenzène sulfonate, la quantité de gaz carbonique nécessaire à la carbonatation étant comprise entre celle pouvant être complètement absorbée par le milieu réactionnel et un excès de 30 % de cette quantité,
- 2) en ce que l'on élimine 1'alkylène glycol,
- 3) et en ce que l'on sépare le détergent-dispersant métallique suralcalinisé ainsi obtenu.
- 1) It is carbonated using carbon dioxide, at a temperature between 100 and 250 ° C., a reaction medium comprising:
- - a sulfurized alkylphenate of an alkali metal - earthy TBN between 0 and 170, said alkylphenate carrying one or more C 6 -C 60 alkyl substituents.
- an alkaline earth metal alkylbenzene sulfonate with a molecular mass greater than 300 and a TBN less than or equal to 150.
- - an alkaline earth compound
- - an alkylene glycol
- - a dilution oil
according to the following amounts of reagents: - - from 5 to 60 parts by weight of sulfurized alkylphenate per 100 parts by weight of sulfurized alkylphenate + alkylbenzene sulfonate mixture,
- - from 95 to 40 parts by weight of alkylbenzene sulfonate per 100 parts by weight of mixture of sulfurized alkylphenate + alkylbenzene sulfonate,
- from 3 to 30 parts by weight of alkaline earth compound per 100 parts by weight of sulfurized alkylphenate + alkylbenzene sulfonate mixture,
- - from 4 to 60 parts by weight of alkylene glycol per 100 parts by weight of sulfurized alkylphenate + alkylbenzene sulfonate mixture, the quantity of carbon dioxide required for carbonation being between that which can be completely absorbed by the reaction medium and an excess of 30% of this amount,
- 2) in that the alkylene glycol is removed,
- 3) and in that the overbased metal detergent-dispersant thus obtained is separated.
Selon ledit procédé, l'opération de carbonation peut être réalisée en une ou plusieurs fois, en introduisant la quantité nécessaire ci-dessus définie de composé alcalino-terreux et d'alkylène glycol, en une ou plusieurs fois, chaque introduction de composé alcalino-terreux et d'alkylène glycol étant suivie d'une opération de carbonatation.According to said method, the carbonation operation can be carried out in one or more times, by introducing the necessary quantity defined above of alkaline earth compound and alkylene glycol, in one or more times, each introduction of alkaline compound. earthy and alkylene glycol being followed by a carbonation operation.
Pour une bonne réalisation de l'invention, l'opération de carbonatation peut être réalisée à une température comprise entre 100 et 185°C, en présence d'un milieu réactionnel comprenant de :
- - 8 à 55 parties en poids d'alkylphénate sulfurisé pour 100 parties en poids de mélange alkylphénate sulfurisé + alkylbenzène sulfonate,
- - 45 à 92 parties en poids d'alkylbenzène sulfonate pour 100 parties en poids de mélange alkylphénate sulfurisé + alkylbenzène sulfonate,
- - 4 à 25 parties en poids de composé alcalino-terreux pour 100 parties en poids de mélange alkylphénate sulfurisé + alkylbenzène sulfonate,
- - 5 à 40 parties en poids d'alkylène glycol pour 100 parties en poids de mélange alkylphénate sulfurisé + alkylbenzène sulfonate.
- - 8 to 55 parts by weight of sulfurized alkylphenate per 100 parts by weight of sulfurized alkylphenate + alkylbenzene sulfonate mixture,
- 45 to 92 parts by weight of alkylbenzene sulfonate per 100 parts by weight of sulfurized alkylphenate + alkylbenzene sulfonate mixture,
- - 4 to 25 parts by weight of alkaline-earth compound per 100 parts by weight of sulfurized alkylphenate + alkylbenzene sulfonate mixture,
- - 5 to 40 parts by weight of alkylene glycol per 100 parts by weight of mixture of sulfurized alkylphenate + alkylbenzene sulfonate.
On dénomme par "alkylphénate sulfurisé" toute solution contenant de 30 à 80 % en poids, de préférence de 40 à 70 % en poids d'un alkylphénate sulfurisé dans une huile de dilution qui peut être ou peut ne pas être la même que celle mise en oeuvre pour réaliser le procédé objet de l'invention.The term "sulfurized alkylphenate" denotes any solution containing from 30 to 80% by weight, preferably from 40 to 70% by weight of a sulfurized alkylphenate in a dilution oil which may or may not be the same as that used. implemented to carry out the process which is the subject of the invention.
De même, on dénommera par "alkylbenzène sulfonate" toute solution contenant de 40 à 95 % en poids, de préférence de 55 à 85 % en poids d'un alkylbenzène sulfonate dans une huile de dilution qui peut être ou peut ne pas être la même que celle mise en oeuvre pour réaliser le procédé objet de l'invention.Likewise, the term “alkylbenzene sulfonate” will denote any solution containing from 40 to 95% by weight, preferably from 55 to 85% by weight of an alkylbenzene sulfonate in a dilution oil which may or may not be the same than that used to carry out the process which is the subject of the invention.
Parmi les alkylphénates sulfurisés pouvant être mis en oeuvre, on peut citer ceux obtenus par sulfurisation au soufre d'un alkylphénol portant de préférence un ou plusieurs substituants alkyles en C9 - C 15 (tels que les nonyl, decyl, dodecyl ou tetradecylphénols) en présence d'une base alcalino-terreuse et d'un alkylène glycol, suivie éventuellement d'une carbonatation par du gaz carbonique.Among the sulfurized alkylphenates which can be used, mention may be made of those obtained by sulfurization with sulfur of an alkylphenol preferably carrying one or more C 9 -C 15 alkyl substituents (such as nonyl, decyl, dodecyl or tetradecylphenols). presence of an alkaline earth base and an alkylene glycol, optionally followed by carbonation with carbon dioxide.
Parmi les alkylbenzènes sulfonates pouvant être mis en oeuvre, on peut citer les sels d'acides sulfoniques (de poids moléculaire de préférence supérieur à 400) naturels obtenus par sulfonation de coupes pétrolières ou synthétiques obtenus par sulfonation d'alkylbenzènes déri- vant d'oléfines ou de polymères d'oléfines en C15 - C30 et de métaux alcalino-terreux tels que calcium, baryum, magnésium...Among the alkylbenzene sulfonates which can be used, there may be mentioned the salts of sulfonic acids (of molecular weight preferably greater than 400) natural obtained by sulfonating synthetic oil or cuts obtained by the sulfonation of alkylbenzenes déri- v a n t olefin or olefin polymers of C 15 - C 30 and alkaline earth metals such as calcium, barium, magnesium. ..
Le composé alcalino-terreux à mettre en oeuvre peut être constitué d'oxydes ou d'hydroxydes de calcium, baryum, magnésium... pris seuls ou en mélange ; le métal dont dérivent l'alkylbenzène sulfonate alcalino-terreux et l'alkylphénate alcalino-terreux mis en oeuvre peut être ou peut ne pas être le même que celui ou ceux contenus dans le composé alcalino-terreux.The alkaline-earth compound to be used can consist of oxides or hydroxides of calcium, barium, magnesium ... taken alone or as a mixture; the metal from which the alkaline earth alkylbenzene sulfonate and the alkaline earth alkylphenate used may or may not be the same as that or those contained in the alkaline earth compound.
Parmi les huiles de dilution pouvant être mises en oeuvre, on peut citer de préférence les huiles paraffini- ques telles que l'huile 100 Neutral... ; les huiles naphté- tiques ou mixtes peuvent étalement convenir.Among the dilution oils which can be used, mention may preferably be made of paraffinic oils such as 100 Neutral oil, etc .; naphthetic or mixed oils may also be suitable.
La quantité d'huile pouvant être mise en oeuvre est telle que la quantité d'huile présente dans le produit final (y compris celle provenant de l'alkylphénate sulfurisé et l'alkylbenzène sulfonate de départ) soit comprise entre 20 et 60 %, de préférence entre 25 et 55 % dudit produit.The amount of oil that can be used is such that the amount of oil present in the final product (including that from the sulfurized alkylphenate and the starting alkylbenzene sulfonate) is between 20 and 60%, from preferably between 25 and 55% of said product.
Parmi les alkylèneglycols pouvant être mis en oeuvre, on peut citer tout particulièrement le glycol ; ceux-ci peuvent éventuellement être présents en mélange avec jusqu'à 200 % de leur poids d'un monoalcool tel que l'éthyl- hexanol, l'alcool tridécylique, les alcools oxo en C8 - C14 et d'une manière générale, les alcools ayant un point d'ébullition supérieur à 120°C et de préférence supérieur à 150°C.Among the alkylene glycols which can be used, mention may very particularly be made of glycol; these can optionally be present in mixture with up to 200% by weight of a monoalcohol such as ethylhexanol, tridecyl alcohol, C 8 -C 14 oxo alcohols and in general , the alcohols having a boiling point higher than 120 ° C and preferably higher than 150 ° C.
Une variante du procédé faisant l'objet de la présente invention, consiste à réaliser l'opération de carbonatation en une seule étape, en présence de 0 à 25,parties, de préférence de 0 à 15 parties pour 100 parties de mélange alkylphénate sulfurisé + alkylbenzène sulfonate, d'un pied de cuve de TBN supérieur ou égal à 200 et choisi parmi :
- a) les alkylphénates sulfurisés et suralcalinisés de nétaux alcalino-terreux tels que calcium, baryum, magnésium..., dont le ou les substituants alcoyles sont en C9 - "15 tels que les substituants nonyle, décyle, dodécyle ou tétradécyle.
- b) les alkylbenzènes sulfonates suralcalinisés de métaux alcalino-terreux tels que calcium, baryum, magnésium, préparés à partir d'acides sulfoniques naturels ou synthétiques obtenus par sulfonation d'alkylbenzènes dérivant d'oléfines ou de polymères d'oléfines en C15 - C30, et de nasse moléculaire supérieure à 300, de préférence supérieure à 400.
- c) les mélanges des produits a) et b).
- a) sulfurized and superalkalinated alkylphenates of alkaline earth metals such as calcium, barium, magnesium, etc., in which the alkyl substituent or substituents are C 9 - 15 such as the nonyl, decyl, dodecyl or tetradecyl substituents.
- b) the alkalinized alkaline earth alkylbenzene sulfonates of alkaline earth metals such as calcium, barium, magnesium, prepared from natural or synthetic sulfonic acids obtained by sulfonation of alkylbenzenes derived from olefins or from polymers of C 15 - C olefins 30 , and molecular weight greater than 300, preferably greater than 400.
- c) mixtures of products a) and b).
Une autre variante du procédé faisant l'objet de l'invention, consiste à préparer in situ préalablement à l'opération de carbonatation, l'alkylbenzène sulfonate de métal alcalino-terreux par action d'un oxyde ou d'un hydroxyde dudit métal alcalino-terreux sur un acide alkylbenzène sulfonique tel que défini ci-dessus, en présence d'huile et d'alkylène glycol éventuellement, à une température comprise entre 40 et 110°C, la quantité d'oxyde ou d'hydroxyde de métal alcalino-terreux et d'huile à mettre en oeuvre étant telle que l'alkylbenzène sulfonate obtenu présente un TBN inférieur ou égal à 150, de préférence inférieur ou égal à 50.Another variant of the process which is the subject of the invention consists in preparing, in situ before the carbonation operation, the alkaline earth metal alkyl benzene sulfonate by the action of an oxide or a hydroxide of said alkali metal. - earthy on an alkylbenzene sulfonic acid as defined above, in the presence of oil and optionally alkylene glycol, at a temperature between 40 and 110 ° C, the amount of alkali metal oxide or hydroxide- earthy and of oil to be used being such that the alkylbenzene sulfonate obtained has a TBN less than or equal to 150, preferably less than or equal to 50.
Le procédé faisant l'objet de l'invention est tout particulièrement intéressant pour préparer des détergents-dispersants de TBN supérieur ou égal à 250 et présentant un pourcentage en poids important de calcium ou de baryum (au moins 9 %) .The process which is the subject of the invention is very particularly advantageous for preparing detergent-dispersants with a TBN greater than or equal to 250 and having a large percentage by weight of calcium or barium (at least 9%).
Ledit procédé pourra être réalisé à partir d'un alkylphénate sulfurisé de calcium et/ou de baryum, d'un alkylbenzène sulfonate de calcium et/ou de baryum et des quantités suivantes de réactifs : 1
- - de 5 à 30 parties en poids, de préférence de 6 à 25 parties en poids d'hydroxyde de calcium ou de baryum pour 100 parties en poids de mélange d'alkylphénate sulfurisé de calcium et/ou de baryum et d'alkylbenzène sulfonate de calcium et/ou de baryum,
- - de 4 à 60 parties, de préférence de 5 à 40 parties d'alkylène glycol pour 100 parties de mélange constitué d'alkylphénate sulfurisé de calcium et/ou de baryum et d'alkylbenzène sulfonate de calcium et/ou de baryum,
- - et de 0 à 25 parties, de préférence de 0 à 15 parties pour 100 parties d'un mélange d'alkylphénate sulfurisé de calcium et/ou de baryum et d'alkylbenzène sulfonate de calcium et/ou de baryum, d'un pied de cuve de TBN supérieur ou égal à 250 et constitué d'un alkylphénate sulfurisé et suralcalinisé de calcium et/ou de baryum et /ou d'un alkylbenzène sulfonate suralcalinisé de calcium et/ ou de baryum.
- - from 5 to 30 parts by weight, preferably from 6 to 25 parts by weight of calcium hydroxide or barium per 100 parts by weight of mixture of sulfurized calcium alkylphenate and / or barium and calcium and / or barium alkylbenzene sulfonate,
- - from 4 to 60 parts, preferably from 5 to 40 parts of alkylene glycol per 100 parts of mixture consisting of sulfurized calcium alkylphenate and / or barium and calcium alkylbenzene sulfonate and / or barium,
- - and from 0 to 25 parts, preferably from 0 to 15 parts per 100 parts of a mixture of sulfurized alkylphenate of calcium and / or barium and calcium alkylbenzene sulfonate and / or barium, of one foot tank of TBN greater than or equal to 250 and consisting of a sulfurized and overbased calcium and / or barium alkylphenate and / or an overbased calcium and / or barium alkylbenzene sulfonate.
Le procédé faisant l'objet de l'invention est également intéressant pour préparer des détergents-dispersants de TBN supérieur à 200 et contenant au moins 2 % en poids de magnésium et éventuellement au moins 0,5 % en poids de calcium.The process which is the subject of the invention is also advantageous for preparing detergent-dispersants with a TBN greater than 200 and containing at least 2% by weight of magnesium and optionally at least 0.5% by weight of calcium.
Ce procédé consiste alors à mettre en oeuvre :
- - un alkylphénate sulfurisé de magnésium et/ou de calcium comme alkylphénate sulfurisé de métal alcalino-terreux,
- - un alkylbenzène sulfonate de magnésium et/ou de calcium comme alkylbenzène sulfonate de métal alcalino-terreux,
- - de l'oxyde de magnésium éventuellement en mélange avec de l'hydroxyde de calcium comme composé alcalino-terreux,
- - éventuellement un pied de cuve de TBN supérieur ou égal à 200, constitué d'un alkylbenzène sulfonate suralcalinisé de magnésium et/ou de calcium et/ou d'un alkylphénate sulfurisé et suralcalinisé de magnésium et/ou de calcium, et éventuellement à traiter à un stade quelconque de l'étape ou des étapes de carbonatation le milieu par 0 à 10 % en poids, de préférence par 0 à 5 % en poids d'eau par rapport au poids dudit milieu.
- a sulfurized alkylphenate of magnesium and / or calcium as a sulfurized alkylphenate of alkaline earth metal,
- a magnesium and / or calcium alkylbenzene sulfonate as alkaline earth metal alkylbenzene sulfonate,
- - magnesium oxide optionally mixed with calcium hydroxide as an alkaline-earth compound,
- - optionally, a base stock of TBN greater than or equal to 200, consisting of an overbased magnesium and / or calcium alkylbenzene sulfonate and / or a sulfurized and overbased magnesium and / or calcium alkylphenate, and optionally to be treated at any stage of the carbonation stage or stages the medium by 0 to 10% by weight, preferably by 0 to 5% by weight of water relative to the weight of said medium.
Ledit procédé pourra être réalisé à 11 aide des quantités particulières des réactifs suivants :
- - de 3 à 25 parties, de préférence de 4 à 18 parties en poids d'oxyde de magnésium pour 100 parties de mélange alkylphénate sulfurisé de magnésium et/ou de calcium et alkylbenzène sulfonate de magnésium et/ou de calcium,
- - de 0 à 10 parties, de préférence de 0 à 5 parties en poids d'hydroxyde de calcium, pour 100 parties de mélange alkylphénate sulfurisé de magnésium et/ou de calcium et alkylbenzène sulfonate de magnésium et/ou de calcium,
- - de 4 à 60 parties, de préférence de 8 à 40 parties d'alkylène glycol pour 100 parties de mélange alkylphénate sulfurisé de magnésium et/ou de calcium et d'alkylbenzène sulfonate de magnésium et/ou de calcium,
- - de 0 à 25 parties, de préférence de 0 à 15 parties de pied de cuve pour 100 parties de mélange alkylphénate sulfurisé de magnésium et/ou de calcium et d'alkylbenzène sulfonate de magnésium et/ou de calcium.
- - from 3 to 25 parts, preferably from 4 to 18 parts by weight of magnesium oxide per 100 parts of sulfurized alkylphenate mixture of magnesium and / or calcium and magnesium and / or calcium alkylbenzene sulfonate,
- - from 0 to 10 parts, preferably from 0 to 5 parts by weight of calcium hydroxide, per 100 parts of sulfurized alkylphenate mixture of magnesium and / or calcium and magnesium and / or calcium alkylbenzene sulfonate,
- - from 4 to 60 parts, preferably from 8 to 40 parts of alkylene glycol per 100 parts of sulfurized alkylphenate mixture of magnesium and / or calcium and of magnesium and / or calcium alkylbenzene sulfonate,
- - from 0 to 25 parts, preferably from 0 to 15 parts of base stock per 100 parts of sulfurized alkylphenate mixture of magnesium and / or calcium and of magnesium and / or calcium alkylbenzene sulfonate.
Bien que n'importe quel type d'oxyde de magnésium puisse être utilisé, on préfère toutefois l'oxyde de magnésium "actif".Although any type of magnesium oxide can be used, however, "active" magnesium oxide is preferred.
On désigne par oxyde de magnésium "actif" de l'oxyde de magnésium Mg 0 de surface spécifique supérieure ou égale à 80 m2/g, par exemple comprise entre 100 et 170m2/g. A titre d'exemple, on peut citer la "Maglite DE" commercialisée par Merck et de surface spécifique voisine de 140 m2/g, ainsi que le "Ferumag" commercialisé par Rhône-Poulenc Industries et de surface spécifique voisine de 160 m2/g.The term “active” magnesium oxide denotes magnesium oxide Mg 0 with a specific surface greater than or equal to 80 m2 / g, for example between 100 and 170m2 / g. By way of example, there may be mentioned the "Maglite DE" marketed by Merck and with a specific surface area close to 140 m2 / g, as well as the "Ferumag" marketed by Rhône-Poulenc Industries and a specific surface area close to 160 m2 / g .
La présente invention a également pour objet les détergents-dispersants de haute alcalinité obtenus par le procédé décrit ci-dessus. Ceux-ci présentent l'avantage d'une très bonne compatibilité avec les huiles visqueuses ainsi qu'un très faible taux de sédiments. Il peuvent être ajoutés à des huiles lubrifiantes selon des quantités fonction du TBN desdits détergents-dispersants, et fonction de l'utilisation future desdites huiles ; ainsi pour une huile pour moteur à essence, la quantité de détergent-dispersant de TBN 200 - 300 par exemple à ajouter, est généralement comprise entre 1 et 3,5 % ; ; pour une huile pour moteur diesel, elle est généralement comprise entre 1,8 et 5 % ; pour une huile pour moteur marin, celle-ci peut aller jusqu'à 25 %.The present invention also relates to detergents-dispersants of high alkalinity obtained by the process described above. These have the advantage of very good compatibility with viscous oils as well as a very low rate of sediment. They can be added to lubricating oils in amounts depending on the TBN of said detergent-dispersants, and depending on the future use of said oils; thus for a petrol engine oil, the amount of detergent-dispersant of TBN 200 - 300 for example to be added, is generally between 1 and 3.5%; ; for a diesel engine oil, it is generally between 1.8 and 5%; for a marine engine oil, this can be up to 25%.
Les huiles lubrifiantes que l'on peut ainsi améliorer peuvent être choisies parmi des huiles lubrifiantes très variées, comme les huiles lubrifiantes de base naphténique de base paraffinique et de base mixte, d'autres lubrifiants hydrocarbonés, par exemple des huiles lubrifiantes dérivées de produits de la houille, et des huiles synthétiques, par exemple des polymères d'alkylène, des polymères du type oxyde d'alkylène et leurs dérivés, y compris les polymères d'oxyde d'alkylène préparés en polymérisant de l'oxyde d'alkylène en présence d'eau ou d'alcools, par exemple d'alcool éthylique,les esters d'acides dicarboxyliques, des esters liquides d'acides du phosphore, des alkylbenzènes et des dialkyl benzènes, des polyphényles, des alkyl biphényl éthers, des polymères du silicium.The lubricating oils which can thus be improved can be chosen from a wide variety of lubricating oils, such as lubricating oils of naphthenic base of paraffinic base and of mixed base, other hydrocarbon lubricants, for example lubricating oils derived from coal, and synthetic oils, for example alkylene polymers, polymers of the alkylene oxide type and their derivatives, including the alkylene oxide polymers prepared by polymerizing alkylene oxide in the presence water or alcohols, for example ethyl alcohol, esters of dicarboxylic acids, liquid esters of phosphorus acids, alkylbenzenes and dialkyl benzenes, polyphenyls, alkyl biphenyl ethers, polymers of silicon .
Des additifs supplémentaires peuvent également être présents dans lesdites huiles lubrifiantes à côté des détergents-dispersants obtenus selon le procédé de l'invention ; on peut citer par exemple des additifs anti-oxydants, anti-corrosion, des additifs dispers nts sans cendres...Additional additives may also be present in said lubricating oils alongside the detergent-dispersants obtained according to the process of the invention; mention may, for example, be made of antioxidant, anti-corrosion additives, ashless dispersant additives, etc.
Les exemples suivants sont donnés à titre indicatif et ne peuvent être considérés comme une limite du domaine et de l'esprit de l'ipvention.The following examples are given for information only and cannot be considered as limiting the scope and spirit of the invention.
On donne ci-après le mode général de préparation des détergents-dispersants suralcalinisés faisant l'objet des exemples 1 à 3 et dans le tableau I, les quantités de réactifs nécessaires à leur préparation et leurs caractéristiques.The general mode of preparation of the overbased detergent-dispersants given in Examples 1 to 3 and in Table I is given below, the quantities of reagents necessary for their preparation and their characteristics.
On introduit dans un réacteur tétracol de 4 litres muni d'un système d'agitation et d'un dispositif de chauffage :
- - une solution à 60 % dans de l'huile de dilution 100 Neutral d'un alkylphénate sulfurisé de calcium (phénate Ca en abréviation) obtenu par sulfurisation du dodecyl-phénol par du soufre en présence de chaux ; ladite solution de phénate contient 5,5 % de calcium, est exempte de C02 et présente un TBN de 153 environ,
- - de l'huile 100 Neutral,
- - une solution à environ 60 % dans de l'huile de dilution d'un alkylbenzène sulfonate de calcium (sulfonate Ca en abréviation) de masse moléculaire 470 environ (masse du sel de sodium), solution contenant 2,7 % de calcium et présentant un TBN de 25 environ,
- - un anti-mousse commercialisé par Rhône-Poulenc sous la dénomination SI 200.
- - A 60% solution in 100 Neutral dilution oil of a sulfurized calcium alkylphenate (Ca phenate for short) obtained by sulfurization of dodecyl-phenol with sulfur in the presence of lime; said phenate solution contains 5.5% calcium, is free of C0 2 and has a TBN of approximately 153,
- - 100 Neutral oil,
- - a solution of approximately 60% in dilution oil of a calcium alkylbenzene sulfonate (sulfonate Ca for short) of molecular weight 470 approximately (mass of the sodium salt), solution containing 2.7% of calcium and having a TBN of around 25,
- - an anti-foam agent marketed by Rhône-Poulenc under the name SI 200.
On introduit alors sous agitation de la chaux et du glycol et on porte et maintient le milieu à 145° C sous 260 mm de mercure pendant 20 minutes pour éliminer complètement l'eau provenant de l'action de la chaux : l'eau éliminée entraine toujours avec elle un peu de glycol. 1ère phase (carbonatation)Lime and glycol are then introduced with stirring and the medium is brought to and maintained at 145 ° C. under 260 mm of mercury for 20 minutes to completely eliminate the water coming from the action of lime: the eliminated water causes always with it a little glycol. 1st phase (carbonation)
Après avoir réajusté la quantité de glycol à sa valeur première, on carbonate le milieu réactionnel à 145°C à l'aide de C02 pendant 25 minutes sous 260 mm Hg puis 35 minutes à pression atmosphérique. De l'eau s'élimine en entrainant avec elle un peu de glycol. 2ème phase (élimination du glycol)After having readjusted the amount of glycol to its initial value, the reaction medium is carbonated at 145 ° C. using C0 2 for 25 minutes under 260 mm Hg and then 35 minutes at atmospheric pressure. Water is eliminated by carrying with it a little glycol. 2nd phase (elimination of glycol)
On porte le milieu suralcalinisé et carbonaté à une température de 184° C sous 30 mm Hg pendant 1 heure. Le glycol distille.The overbased and carbonated medium is brought to a temperature of 184 ° C. under 30 mm Hg for 1 hour. The glycol distills.
Le milieu est filtré pour éliminer les sédiments et on récupère une solution dans de l'huile 100 N de détergent-dispersant suralcalinisé que l'on dégaze et dont les caractéristiques figurent au tableau I.The medium is filtered to remove the sediments and a solution is recovered in 100 N oil of overbased detergent-dispersant which is degassed and the characteristics are shown in Table I.
L'opération décrite aux exemples 1 à 3 est réalisée dans les mêmes conditions, à partir d'une solution à 60 % dans de l'huile 100 N d'un dodecylphénate sulfurisé et carbonaté de calcium, ladite solution contenant 5,25 % de calcium et 2,6 % de C02 et présente un TBN de 148 environ.The operation described in Examples 1 to 3 is carried out under the same conditions, starting from a 60% solution in 100 N oil of a sulfurized dodecylphenate and calcium carbonate, said solution containing 5.25% of calcium and 2.6% C0 2 and has a TBN of around 148.
Les quantités de réactifs nécessaires et les caractéristiques des produits obtenus figurent au tableau II.The quantities of reagents required and the characteristics of the products obtained are shown in Table II.
On donne ci-après le mode général de préparation d'un détergent-dispersant suralcalinisé et dans le tableau III les quantités de réactifs nécessaires à sa préparation et ses caractéristiques.The general mode of preparation of an overbased detergent-dispersant is given below and in Table III the quantities of reagents necessary for its preparation and its characteristics.
On introduit dans un réacteur tétracol de 4 litres muni d'un système d'agitation et d'un dispositif de chauffage :
- - une solution à 60 % dans de l'huile de dilution 100 Neutral, d'un alkylphénate sulfurisé de calcium (phénate Ca en abréviation) obtenu par sulfurisation du dodé- cylphénol par du soufre en présence de chaux ; ladite solution de phénate contient 5,5 % de calcium, est exempte de C02 et présente un TBN de 153 environ.
- - une solution à environ 60 % dans de l'huile de dilution d'un alkylbenzène sulfonate de magnésium (sulfonate Mg en abréviation) de masse moléculaire 470 environ (masse du sel de sodium), solution contenant 1,8 % de magnésium et présentant un TBN de 25 environ.
- - de l'anti-mousse SI 200.
- - A 60% solution in 100 Neutral dilution oil, of a sulfurized calcium alkylphenate (phenate Ca for short) obtained by sulfurization of dod e-cylphenol with sulfur in the presence of lime; said phenate solution contains 5.5% calcium, is free of C0 2 and has a TBN of approximately 153.
- - a solution of approximately 60% in dilution oil of a magnesium alkylbenzene sulfonate (sulfonate Mg for short) of molecular weight approximately 470 (mass of the sodium salt), solution containing 1.8% of magnesium and having a TBN of around 25.
- - SI 200 anti-foam.
On introduit alors sous agitation de la "Maglite DE" et du glycol et on porte le milieu à 110°C.Then introduced with stirring "Maglite DE" and glycol and the medium is brought to 110 ° C.
On carbonate à l'aide CO2 pendant 3 heures à 110°C, on ajoute de l'eau et on continue la carbonatation jusqu'à la fin de l'absorption du CO2; l'opération dure 5 heures.Carbonate with CO 2 for 3 hours at 110 ° C, add water and continue carbonation until the absorption of CO 2 is complete ; the operation lasts 5 hours.
Le glycol est éliminé (2ème phase) et la solution de détergent-dispersant est filtrée (3ème phase) comme précédemment aux exemples 1 à 3.The glycol is removed (2nd phase) and the detergent-dispersant solution is filtered (3rd phase) as before Use examples 1 to 3.
Les caractéristiques du produit obtenu figurent au tableau III.The characteristics of the product obtained are shown in Table III.
On réalise l'opération décrite à l'exemple 7, en présence d'un pied de cuve de TBN 200 préparé à l'exemple 7 constitué d'un mélange 44/56 dodécylphénate sulfurisé de calcium/alkylbenzène sulfonate de magnésium.The operation described in Example 7 is carried out in the presence of a TBN 200 base stock prepared in Example 7 consisting of a 44/56 mixture of calcium sulphurized dodecylphenate / magnesium alkylbenzene sulphonate.
Les quantités de réactifs mises en oeuvre et les caractéristiques des produits obtenus figurent aux tableaux IV et IV'.The quantities of reagents used and the characteristics of the products obtained are shown in Tables IV and IV '.
On réalise l'opération décrite à l'exemple 7, en présence d'un pied de cuve de TBN 275 et constitué de :
- - 50 % en poids de dodecylphénate de calcium sulfurisé de TBN 150,
- - et 50 % en poids d'alkylbenzène sulfonate de magnésium de TBN 400.
- - 50% by weight of sulfurized calcium dodecylphenate of TBN 150,
- - And 50% by weight of magnesium alkylbenzene sulfonate of TBN 400.
Le glycol est également utilisé en mélange avec du décanol.Glycol is also used in admixture with decanol.
Les quantités de réactifs mises en oeuvre et les caractéristiques du produit obtenu figurent aux tableaux IV et IV'.The quantities of reagents used and the characteristics of the product obtained are shown in Tables IV and IV '.
L'opération décrite à l'exemple 7 est réalisée en effectuant l'opération de carbonatation à 140°C à pression atmosphérique pendant environ 4 heures sans addition d'eau.The operation described in Example 7 is carried out by carrying out the carbonation operation at 140 ° C. at atmospheric pressure for approximately 4 hours without the addition of water.
Les caractéristiques du produit obtenu sont semblables à celles de celui de l'exemple 7.The characteristics of the product obtained are similar to that of Example 7.
L'opération décrite à l'exemple 7 est réalisée en effectuant l'opération de carbonatation pendant 2 heures à 160°C, en ajoutant de l'eau après avoir refroidi le milieu à 110°C et en poursuivant la carbonatation pendant encore 2 heures à 110°C.The operation described in Example 7 is carried out by carrying out the carbonation operation for 2 hours at 160 ° C, adding water after having cooled the medium to 110 ° C and continuing the carbonation for another 2 hours at 110 ° C.
Les caractéristiques du produit obtenu sont semblables à celles de celui de l'exemple 7.The characteristics of the product obtained are similar to those of that of Example 7.
On donne ci-après le mode général de préparation des détergents-dispersants suralcalinisés faisant l'objet des exemples 12 à 14 et dans le tableau V les quantités de réactifs nécessaires à leur préparation.The general mode of preparation of the overbased detergent-dispersants given in Examples 12 to 14 is given below and in Table V the quantities of reagents necessary for their preparation.
On introduit dans un réacteur tétracol de 4 litres muni d'un système d'agitation et d'un dispositif de chauffage :
- - une solution à environ 70 % dans de l'huile de dilution d'un acide alkylbenzène sulfonique de masse moléculaire 470 environ (masse du sel de sodium),
- - de l'huile 100 N,
- - de l'anti-mousse SI 200.
- - a solution of approximately 70% in dilution oil of an alkylbenzene sulfonic acid of molecular mass approximately 470 (mass of the sodium salt),
- - 100 N oil,
- - SI 200 anti-foam.
On chauffe le milieu vers 50°C et on introduit de la chaux puis du glycol en 30 minutes.The medium is heated to 50 ° C. and lime and then glycol are introduced over 30 minutes.
Le milieu est chauffé à 80°C pendant 30 minutes et on introduit une solution à 60 % dans de l'huile de dilution 100 N de dodecylphénate sulfurisé de calcium, ladite solution contenant 5,5 % de calcium, étant exempte de C02 et présentant un TBN de 153 environ.The medium is heated at 80 ° C. for 30 minutes and a 60% solution in 100 N dilution oil of calcium sulphurized dodecylphenate is introduced, said solution containing 5.5% of calcium being free of C0 2 and with a TBN of around 153.
On porte et maintient le milieu à 145°C sous 260 mm Hg pendant 20 minutes pour éliminer complètement l'eau de réaction. L'eau éliminée entraine toujours avec elle un peu de glycol.The medium is brought to and maintained at 145 ° C. under 260 mm Hg for 20 minutes to completely eliminate the reaction water. The eliminated water always carries with it a little glycol.
On carbonate le milieu à 145°C à l'aide de C02 pendant 25 minutes sous 260 mm Hg puis pendant 35 minutes à pression atmosphérique.The medium is carbonated at 145 ° C. using C0 2 for 25 minutes under 260 mm Hg and then for 35 minutes at atmospheric pressure.
On introduit de nouveau sous agitation de la chaux et du glycol ; on porte et maintient le milieu à 145°C sous 260 mm Hg pendant 20 minutes pour éliminer l'eau de réaction.Lime and glycol are again introduced with stirring; the medium is brought to and maintained at 145 ° C. under 260 mm Hg for 20 minutes to remove the reaction water.
On carbonate à 145°C à l'aide de CO2 pendant 25 minutes sous 260 mm Hg puis 35 minutes à pression atmosphérique. De l'eau s'élimine en entrainant avec elle un peu de glycol.Carbonate at 145 ° C. using CO 2 for 25 minutes under 260 mm Hg then 35 minutes at atmospheric pressure spherical. Water is eliminated by carrying with it a little glycol.
Le glycol est éliminé (3ème phase) et la solution de détergent-dispersant est filtrée (4ème phase) comme précédemment aux exemples 1 à 3.The glycol is removed (3rd phase) and the detergent-dispersant solution is filtered (4th phase) as previously in Examples 1 to 3.
Les quantités de réactifs mises en oeuvre et les caractéristiques des produits obtenus figurent aux tableaux V et V'.The quantities of reagents used and the characteristics of the products obtained are shown in Tables V and V '.
Les % de sédiments figurant dans les tableaux ci-dessous ont été mesurés selon la norme A.S.T.M. D 2273-67, en apportant toutefois les modifications suivantes :
- - vitesse de rotation de la centrifugeuse 6000 t/mn,
- - force centrifuge relative 10 000,
- - le produit à analyser est dilué au quart dans de l'essence E (25 cm3 de produit à analyser + 75 cm3 d'essence E),
- - durée de la centrifugation : 10 minutes.
- - rotation speed of the centrifuge 6000 rpm,
- - relative centrifugal force 10 000,
- - the product to be analyzed is diluted to a quarter in gasoline E (25 cm3 of product to be analyzed + 75 cm3 of gasoline E),
- - duration of centrifugation: 10 minutes.
Les tests de compatibilité figurant dans les tableaux ci-dessous ont été réalisés par addition de 10 % en poids de produit à tester à une huile minérale SAE 30, stockage de la solution obtenue pendant 1 mois à 20° C et étude de l'aspect de la solution en fonction du temps.The compatibility tests appearing in the tables below were carried out by adding 10% by weight of product to be tested to a SAE 30 mineral oil, storage of the solution obtained for 1 month at 20 ° C. and study of the appearance. of the solution as a function of time.
Le produit de l'exemple 12 est ajouté à une huile SAE 50 à tendance paraffimique de façon à obtenir une solution contenant 125 millimoles de calcium +. magnésium. La solution est stockée pendant 15 jours à 20° C ; on constate que la solution reste limpide.The product of Example 12 is added to an SAE 50 oil with a paraffimic tendency so as to obtain a solution containing 125 millimoles of calcium +. magnesium. The solution is stored for 15 days at 20 ° C; we see that the solution remains clear.
Le même test est réalisé avec un mélange :
- - d'alkylbenzène sulfonate de magnésium de TBN 400,
- - d'alkylbenzène sulfonate de calcium de TBN 25,
- - d'alkylphénate de calcium de TBN 150.
- - magnesium alkylbenzene sulfonate of TBN 400,
- - TBN 25 calcium alkylbenzene sulfonate,
- - calcium alkylphenate of TBN 150.
Après 15 jours de stockage à 20° C, la solution est trouble et floculeuse.After 15 days of storage at 20 ° C, the solution is cloudy and flocculent.
- - Test avec l'additif en formulation- Test with the additive in formulation
On prépare un mélange (A) d'additifs contenant :
- - 2 % d'un dispersant à base de polyisobutenyl succi- nimide,
- - 1,6 millimole d'un dithiophosphate de zinc,
- - et 2,3 % de produit de l'exemple 12.
- - 2% of a dispersant based on polyisobutenyl succinimide,
- - 1.6 millimole of a zinc dithiophosphate,
- - and 2.3% of product from Example 12.
Ce mélange est porté pendant 25 jours à 80° C, puis est ajouté à une huile SAE 30 de manière à avoir une concentration de 6,6 % en poids de mélange (A).This mixture is brought for 25 days to 80 ° C., then is added to an SAE 30 oil so as to have a concentration of 6.6% by weight of mixture (A).
La solution est stockée pendant 5 jours à 80° C.The solution is stored for 5 days at 80 ° C.
Le même test est réalisé avec un mélange (B) constitué de :
- - 2 % du dispersant à base de polyisobutenyl succini- mide,
- - 1,6 millimole du dithiophosphate de zinc,
- - et 2,3 % d'un mélange constitué :
- . d'alkylbenzène sulfonate de magnésium de TBN 400
- . d'alkylbenzène sulfonate de calcium de TBN 25
- . d'alkylphénate de calcium de TBN 150 présentant un nombre de millimoles de calcium + magnésium équivalent à celui du produit de l'exemple 12.
- - 2% of the dispersant based on polyisobutenyl succinimide,
- - 1.6 millimole of zinc dithiophosphate,
- - and 2.3% of a mixture consisting of:
- . magnesium alkylbenzene sulfonate from TBN 400
- . TBN 25 calcium alkylbenzene sulfonate
- . of calcium alkylphenate of TBN 150 having a number of millimoles of calcium + magnesium equivalent to that of the product of Example 12.
On constate que la solution contenant le mélange (A) est plus claire et plus brillante que celle contenant le mélange (B).
Claims (16)
selon les quantités suivantes de réactifs :
according to the following amounts of reagents:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT79400391T ATE356T1 (en) | 1978-06-26 | 1979-06-14 | PROCESS FOR MANUFACTURE OF METAL CONTAINING OVERBASED CLEANING SOLUTIONS FOR LUBRICATION OIL AND PRODUCT MADE THEREOF. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7818947 | 1978-06-26 | ||
FR7818947A FR2429833A1 (en) | 1978-06-26 | 1978-06-26 | PROCESS FOR THE PREPARATION OF SURALKALINATED METAL DETERGENTS-DISPERSANTS FOR LUBRICATING OILS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0006796A1 true EP0006796A1 (en) | 1980-01-09 |
EP0006796B1 EP0006796B1 (en) | 1981-11-04 |
Family
ID=9209960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79400391A Expired EP0006796B1 (en) | 1978-06-26 | 1979-06-14 | Process for the preparation of overbased metalliferous detergent-dispersant agents for lubricating oils and product obtained |
Country Status (11)
Country | Link |
---|---|
US (1) | US4412927A (en) |
EP (1) | EP0006796B1 (en) |
JP (1) | JPS6056200B2 (en) |
AT (1) | ATE356T1 (en) |
BR (1) | BR7903980A (en) |
CA (1) | CA1124227A (en) |
DE (1) | DE2961227D1 (en) |
ES (1) | ES481865A1 (en) |
FR (1) | FR2429833A1 (en) |
MX (1) | MX5734E (en) |
ZA (1) | ZA793197B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2529225A1 (en) * | 1982-06-24 | 1983-12-30 | Orogil | NEW DETERGENT-HIGH ALKALINITE METAL DISPERSANT ADDITIVE FOR LUBRICATING OILS |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4614602A (en) * | 1985-05-01 | 1986-09-30 | Amoco Corporation | Lubricant overbased detergent-dispersants with improved solubility |
US4938880A (en) * | 1987-05-26 | 1990-07-03 | Exxon Chemical Patents Inc. | Process for preparing stable oleaginous compositions |
US4973411A (en) * | 1989-09-15 | 1990-11-27 | Texaco Inc. | Process for the preparation of sulfurized overbased phenate detergents |
CN113186015B (en) * | 2021-02-02 | 2024-02-06 | 安徽澳润新材料有限公司 | High-base-number magnesium sulfonate detergent and preparation method thereof |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1080531A (en) * | 1952-02-01 | 1954-12-09 | Standard Oil Dev Co | Preparation of compound products containing metal sulphonates and metal salts of aromatic sulphides |
GB1015769A (en) * | 1962-05-15 | 1966-01-05 | California Research Corp | Process for overbased sulfurized metal phenates |
US3923670A (en) * | 1973-02-22 | 1975-12-02 | John Crawford | Overbased phenates |
FR2335588A1 (en) * | 1975-12-15 | 1977-07-15 | Karonite Chem Co Ltd | PROCESS FOR PREPARING SUPERALKALINIZED ADDITIVES FOR LUBRICATING OILS AND PRODUCTS OBTAINED |
US4057507A (en) * | 1974-12-20 | 1977-11-08 | Hitachi, Ltd. | Europium and samarium activated rare earth oxysulfide phosphor |
EP0003694A1 (en) * | 1978-02-08 | 1979-08-22 | Orogil | Method for preparing highly based detergents-dispersants for lubricating oils, and product thus obtained |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2680096A (en) * | 1951-02-12 | 1954-06-01 | California Research Corp | Process for preparing sulfurized polyvalent metal phenates |
US3036971A (en) * | 1958-12-24 | 1962-05-29 | Socony Mobil Oil Co Inc | Lubricating oils containing carbonated basic sulfurized calcium phenates |
US3178368A (en) * | 1962-05-15 | 1965-04-13 | California Research Corp | Process for basic sulfurized metal phenates |
US3336224A (en) * | 1965-04-28 | 1967-08-15 | Chevron Res | High alkalinity overbased phenate |
US3493516A (en) * | 1966-05-04 | 1970-02-03 | Chevron Res | Carboxylate modified phenates |
GB1469289A (en) * | 1974-07-05 | 1977-04-06 | Exxon Research Engineering Co | Detergent additives |
-
1978
- 1978-06-26 FR FR7818947A patent/FR2429833A1/en active Granted
-
1979
- 1979-06-14 DE DE7979400391T patent/DE2961227D1/en not_active Expired
- 1979-06-14 EP EP79400391A patent/EP0006796B1/en not_active Expired
- 1979-06-14 AT AT79400391T patent/ATE356T1/en not_active IP Right Cessation
- 1979-06-21 MX MX798106U patent/MX5734E/en unknown
- 1979-06-22 CA CA330,645A patent/CA1124227A/en not_active Expired
- 1979-06-25 ES ES481865A patent/ES481865A1/en not_active Expired
- 1979-06-25 BR BR7903980A patent/BR7903980A/en not_active IP Right Cessation
- 1979-06-26 ZA ZA793197A patent/ZA793197B/en unknown
- 1979-06-26 JP JP54079793A patent/JPS6056200B2/en not_active Expired
-
1982
- 1982-02-19 US US06/350,282 patent/US4412927A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1080531A (en) * | 1952-02-01 | 1954-12-09 | Standard Oil Dev Co | Preparation of compound products containing metal sulphonates and metal salts of aromatic sulphides |
GB1015769A (en) * | 1962-05-15 | 1966-01-05 | California Research Corp | Process for overbased sulfurized metal phenates |
US3923670A (en) * | 1973-02-22 | 1975-12-02 | John Crawford | Overbased phenates |
US4057507A (en) * | 1974-12-20 | 1977-11-08 | Hitachi, Ltd. | Europium and samarium activated rare earth oxysulfide phosphor |
FR2335588A1 (en) * | 1975-12-15 | 1977-07-15 | Karonite Chem Co Ltd | PROCESS FOR PREPARING SUPERALKALINIZED ADDITIVES FOR LUBRICATING OILS AND PRODUCTS OBTAINED |
EP0003694A1 (en) * | 1978-02-08 | 1979-08-22 | Orogil | Method for preparing highly based detergents-dispersants for lubricating oils, and product thus obtained |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2529225A1 (en) * | 1982-06-24 | 1983-12-30 | Orogil | NEW DETERGENT-HIGH ALKALINITE METAL DISPERSANT ADDITIVE FOR LUBRICATING OILS |
EP0101334A2 (en) * | 1982-06-24 | 1984-02-22 | Orogil | High alkalinity metallic detergent-dispersant additive for lubricating oils |
EP0101334A3 (en) * | 1982-06-24 | 1985-10-09 | Orogil | High alkalinity metallic detergent-dispersant additive for lubricating oils |
Also Published As
Publication number | Publication date |
---|---|
DE2961227D1 (en) | 1982-01-14 |
ES481865A1 (en) | 1980-02-16 |
FR2429833B1 (en) | 1982-04-02 |
MX5734E (en) | 1984-01-25 |
US4412927A (en) | 1983-11-01 |
ATE356T1 (en) | 1981-11-15 |
EP0006796B1 (en) | 1981-11-04 |
CA1124227A (en) | 1982-05-25 |
JPS6056200B2 (en) | 1985-12-09 |
ZA793197B (en) | 1980-06-25 |
FR2429833A1 (en) | 1980-01-25 |
BR7903980A (en) | 1980-03-25 |
JPS5540766A (en) | 1980-03-22 |
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