PL102041B1 - A METHOD OF PRODUCING LUBRICANTS CONTAINING MOLYBDENUM DISULPHIDE - Google Patents
A METHOD OF PRODUCING LUBRICANTS CONTAINING MOLYBDENUM DISULPHIDE Download PDFInfo
- Publication number
- PL102041B1 PL102041B1 PL19175376A PL19175376A PL102041B1 PL 102041 B1 PL102041 B1 PL 102041B1 PL 19175376 A PL19175376 A PL 19175376A PL 19175376 A PL19175376 A PL 19175376A PL 102041 B1 PL102041 B1 PL 102041B1
- Authority
- PL
- Poland
- Prior art keywords
- temperature
- molybdenum disulphide
- containing molybdenum
- earth metal
- grease
- Prior art date
Links
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 5
- 239000000314 lubricant Substances 0.000 title description 4
- 239000004519 grease Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 5
- 239000012964 benzotriazole Substances 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 125000001399 1,2,3-triazolyl group Chemical group N1N=NC(=C1)* 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- QWENRTYMTSOGBR-UHFFFAOYSA-N 1H-1,2,3-Triazole Chemical compound C=1C=NNN=1 QWENRTYMTSOGBR-UHFFFAOYSA-N 0.000 claims 1
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 4
- 239000002199 base oil Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 229940114072 12-hydroxystearic acid Drugs 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 150000000177 1,2,3-triazoles Chemical class 0.000 description 1
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- PIWQVBDRRFMUIB-UHFFFAOYSA-N 2-phenoxyundecanoic acid Chemical class CCCCCCCCCC(C(O)=O)OC1=CC=CC=C1 PIWQVBDRRFMUIB-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 description 1
- QPXMSPQFJGKBQO-UHFFFAOYSA-K P(=S)([S-])([O-])[O-].C(C)C(CCCCC)([Zn+])CC.C(C)C(CCCCC)(CC)[Zn+].C(C)C(CCCCC)(CC)[Zn+] Chemical compound P(=S)([S-])([O-])[O-].C(C)C(CCCCC)([Zn+])CC.C(C)C(CCCCC)(CC)[Zn+].C(C)C(CCCCC)(CC)[Zn+] QPXMSPQFJGKBQO-UHFFFAOYSA-K 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical group OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- -1 alkyl alkaline earth metal Chemical class 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PQVSTLUFSYVLTO-UHFFFAOYSA-N ethyl n-ethoxycarbonylcarbamate Chemical compound CCOC(=O)NC(=O)OCC PQVSTLUFSYVLTO-UHFFFAOYSA-N 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002462 imidazolines Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- GLXDVVHUTZTUQK-UHFFFAOYSA-M lithium hydroxide monohydrate Substances [Li+].O.[OH-] GLXDVVHUTZTUQK-UHFFFAOYSA-M 0.000 description 1
- 229940040692 lithium hydroxide monohydrate Drugs 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000012053 oil suspension Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229940083254 peripheral vasodilators imidazoline derivative Drugs 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-M phenolate Chemical compound [O-]C1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-M 0.000 description 1
- 229940031826 phenolate Drugs 0.000 description 1
- FSYKKLYZXJSNPZ-UHFFFAOYSA-N sarcosine Chemical class C[NH2+]CC([O-])=O FSYKKLYZXJSNPZ-UHFFFAOYSA-N 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Lubricants (AREA)
Description
Przedmiotem wynalazku jest sposób wytwarzania smarów plastycznych zawierajacych dwusiarczek mo¬ libdenu, charakteryzujacych sie dobrymi wlasnosciami przeciwkorozyjnymi w stosunku do metali. Smary za¬ wierajace dwusiarczek molibdenu charakteryzuja sie obnizonymi wlasnosciami przeciwkorozyjnymi w stosun¬ ku do metali a nawet w pewnych specjalnych warunkach, w wysokiej temperaturze lub w obecnosci wody moga wywierac dzialanie korodujace na metale. Spowodow-me to jest obecnoscia w dwusiarczku molibdenu niewiel¬ kich ilosci zanieczyszczen pochodzacych z procesu utlenienia dwusiarczku molibdenu.The subject of the invention is a process for the production of plastic greases containing disulfide libden, characterized by good anti-corrosive properties to metals. Lubricants for containing molybdenum disulfide are characterized by reduced anti-corrosive properties in relation to to metals and even under certain special conditions, high temperature or in the presence of water can have a corrosive effect on metals. This is due to the presence of a small amount of molybdenum disulfide some amounts of impurities from the oxidation of molybdenum disulfide.
W celu podwyzszenia ochrony korozyjnej powierzel. .i metalowych, smarowanych smarami zawierajacymi dwusiarczek molibdenu, wprowadza sie do smarów inhibitory korozji. Najczesciej jako inhibitory korozji stoso¬ wane sa pochodne kwasu nonylofenoksyoctowego, rozpuszczalne w olejach mineralnych sulfoniany metali ziem alkalicznych, pochodne imidazoliny, pochodne sarkozyny, hydroksyestry polialkoholi i kwasów tluszczowych.In order to increase the corrosion protection, air. . and metal, lubricated with grease containing molybdenum disulfide, corrosion inhibitors are introduced into lubricants. Most often they are used as corrosion inhibitors nonylphenoxyacetic acid derivatives, mineral oil-soluble earth metal sulfonates are important alkali, imidazoline derivatives, sarcosine derivatives, hydroxy esters of polyalcohols and fatty acids.
Stwierdzono, ze smary zawierajace dwusiarczek molibdenu charakteryzujace sie dobrymi wlasnosciami antykorozyjnymi, mozna wytworzyc wprowadzajac do smaru mieszanine obojetnych i/lub zasadowych alkilofe- nolanów metali ziem alkalicznych oraz pochodnych 1,2,3 triazoli, glównie benzotriazolu. Wedlug wynalazku, sposób wytwarzania smarów z dusiarczkiem molibdenu, charakteryzujacych sie dobrymi wlasnosciami przeciw¬ korozyjnymi w stosunku do metali, polega na wprowadzeniu do smaru w roku dyspergowania zageszczacza w oleju, mieszaniny alkilofenolanów metali ziem alkalicznych o rezerwie alkalicznej do 300 mg KOH/g oraz srednim ciezarze czasteczkowym grupy fenolanowej 200-340 i zwiazków zawierajacych ugrupowanie 1,2,3 tria- zolowe glównie benzotriazolu.It was found that greases containing molybdenum disulphide with good anticorrosive, can be produced by introducing a mixture of neutral and / or basic alkyl alkaline earth metal nolates and derivatives of 1,2,3 triazoles, mainly benzotriazole. According to the invention, method of producing greases with molybdenum disulphide, characterized by good anti- corrosive to metals, consists in introducing a thickener into the grease in the year in oil, alkaline earth metal alkylphenate mixtures with an alkaline reserve of up to 300 mg KOH / g and the average molecular weight of the phenolate group 200-340 and compounds containing the 1,2,3 tria- sols mainly of benzotriazole.
Mieszanine alkilofenolanów oraz zwiazków zawierajacych ugrupowanie 1,2,3 triazolowe wprowadza sie do smaru w fazie dyspergowania zageszczacza w temperaturze 160 50°C w ilosci do 10% wag. przy zachowaniu stosunku wagowego alkilofenolanu metalu do pochodrej 1,2,3 triazolu L:l do 10:1, glównie 3:1 do 5:1.A mixture of the alkylphenolates and compounds containing a 1,2,3 triazole moiety is introduced into % of the grease in the thickener dispersion phase at the temperature of 160-50 ° C in an amount up to 10 wt. while keeping the weight ratio of the metal alkylphenate to the 1,2,3 derivative of the triazole L: 1 to 10: 1, mainly 3: 1 to 5: 1.
Przyklad I. Do reaktora pojemnosci 100 kg, zaopatrzonego w sprawnie dzialajace mieszadlo wprowa¬ dza sie 29 kg oleju weglowodorowego o lepkosci 65cSt w temperaturze 50°C; 6 kg stearyny oraz 2 kg kwasu 12-hydroksystearynowego. Po ogrzaniu zawartosci reaktora do temperatury 85°C i calkowitym rozpuszczeniu2 102041 kwasów dodaje sie zawiesine 1,2 kg monohydratu wodorotlenku litu oraz 0,1 kg wapna hydratyzowanego w 1,9 kg kondensatu wodnego i prowadzi proces zmydlania przez 2 godziny. Nastepnie odparowuje sie wode i ogrzewa do temp.205°C celem rozpuszczenia zageszczacza woleju, po czym dozuje 47,1 kg oleju bazowego w 4-eh porcjach tak, aby ostatnia porcja oleju dodawana byla w temperaturze nie nizszej niz 160°C. Dalsze chlodzenie smaru prowadzi sie przez cyrkulacje medium chlodzacego w plaszczu reaktora. W temperaturze 180°C dodaje sie uprzednio przygotowana suspensje dwusiarczku molibdenu w oleju zawierajaca 5 kg dwusiar¬ czku molibdenu i 20 kg oleju bazowego. W trakcie chlodzenia w temperaturze 150° wprowadza sie 5 kg roztworu olejowego zasadowego alkilofenolanu baru o ciezarze czasteczkowym grupy fenolanowej 276 oraz rezerwie alkalicznej 65 mg KOH/g 0,2 kg benzotriazolu oraz 1 kg fenylobetanaftyloaminy. Po ochlodzeniu do temperatury 60°C smar egalizuje sie na tarczowym mlynie koloidalnym przy szczelinie 0,2 mm oraz odpowie¬ trza. Wytworzony smar posiada penetracje w temperaturze 25°C pc ugniataniu 285 mm/10, temperature kropie¬ nia 185°C, wytrzymuje badanie dzialania korodujacego na plytkach ze stali oraz miedzi w temperaturze 100°C w ciagu 24 godzin, oraz badanie ochrony lozysk przed korozja w kontakcie z woda na aparacie Erncoi wedlug DIN 51802.Example I. Into a reactor with a capacity of 100 kg, provided with an efficient stirrer, introduce 29 kg of hydrocarbon oil with a viscosity of 65cSt at 50 ° C are used; 6 kg of stearin and 2 kg of acid 12-hydroxystearic acid. After heating the contents of the reactor to a temperature of 85 ° C and complete dissolution2 102041 of acids, a suspension of 1.2 kg of lithium hydroxide monohydrate and 0.1 kg of hydrated lime are added in 1.9 kg of water condensate and saponification process for 2 hours. Then the water is evaporated and heats to 205 ° C to dissolve the oil thickener, then doses 47.1 kg of base oil in 4-eh portions so that the last portion of oil was added at a temperature not lower than 160 ° C. Further the cooling of the lubricant is carried out by circulating the cooling medium in the jacket of the reactor. In temperature 180 ° C, the previously prepared suspension of molybdenum disulfide in oil containing 5 kg of disulfide is added. molybdenum plug and 20 kg of base oil. 5 kg are introduced while cooling at 150 ° C an oily solution of a basic barium alkylphenate with a molecular weight of the phenate group 276 and alkaline reserve of 65 mg KOH / g 0.2 kg of benzotriazole and 1 kg of phenylbetanaphthylamine. After cooling down to at a temperature of 60 ° C, the grease is equalized on a colloidal disc mill with a gap of 0.2 mm and responded to three. The produced grease has a penetration at 25 ° C pc, kneading 285 mm / 10, droplet temperature temperature 185 ° C, withstands corrosion test on steel and copper plates at 100 ° C within 24 hours, and testing the protection of the bearings against corrosion in contact with water using the Erncoi apparatus according to DIN 51802.
Przyklad II. Do reaktora pojemnosci roboczej 100 kg, zaopatrzonego w sprawnie dzialajace miesza¬ dlo, wprowadza sie 44 kg oleju mineralnego o lepkosci kinematycznej w temperaturze 100°C - 6,2 cSt, oraz kg kwasu 12-hydroksystearynowego. Po ogrzaniu do temperatury 75°C i calkowitym rozpuszczeniu kwasu wprowadza sie 1,6 kg wodorotlenku wapnia w postaci 30% zawiesiny w wodzie i podnoszac temperature do 95—100 C zmydla w czasie okolo 3 godzin. Po zmydleniu odparowuje sie wode ogrzewajac do temperatury 130°C. W temperaturze 130°C wprowadza sie 24,3 kg oleju bazowego, miesza >rzez 1 godzine a nastepnie chlo¬ dzi. W trakcie chlodzenia wprowadza sie w temperaturze 110 C 2 kg 50% roztworu olejowego dwuetyloheksylo- dwutiofosforanu cynku 3 kg zasadowego alkilofenolanu wapnia ciezarze czasteczkowym grupy fenolanowej 320 i rezerwie alkalicznej 115 mg KOH/g, 0,1 kg benzotriazolu oraz suspensje olejowa dwusiarczku molibdenu za¬ wierajaca 3 kg dwusiarczku molibdenu i 12 kg oleju bazowego. Po wprowadzeniu skladników, mieszanie konty¬ nuuje sie przez 1,5 godziny utrzymujac temperature w zakresie .100-90°C a nastepnie chlodzi dc temperatury okolo 50°C i poddaje egalizacji na tarczowym mlynie koloidalnym przy szczelinie 0,2 mm i odpowietrza.Example II. For the reactor with a working capacity of 100 kg, equipped with an efficient stirrer down, 44 kg of mineral oil with a kinematic viscosity at 100 ° C - 6.2 cSt are introduced, and kg of 12-hydroxystearic acid. After heating to 75 ° C and complete dissolution of the acid 1.6 kg of calcium hydroxide as a 30% suspension in water is introduced and the temperature is raised to 95-100 C saponifies for about 3 hours. After saponification, the water is evaporated while warming to temperature 130 ° C. At a temperature of 130 ° C, 24.3 kg of base oil are introduced, mixed for 1 hour and then chilled. today While cooling, 2 kg of a 50% oil solution of diethylhexyl zinc dithiophosphate 3 kg alkaline calcium alkylphenateate molecular weight of the phenate group 320 and an alkaline reserve of 115 mg KOH / g, 0.1 kg benzotriazole and an oil suspension of molybdenum disulfide containing 3 kg of molybdenum disulphide and 12 kg of base oil. After adding the ingredients, continue mixing dives for 1.5 hours keeping the temperature in the range of 100-90 ° C and then it cools down to the temperature 50 ° C and equalized on a disc colloid mill with a gap of 0.2 mm and vented.
Wytworzony smar posiada penetracje w temperaturze 25°C po ugniataniu 283 mm/10, temperature kropienia 138°C wytrzymuje badanie dzialania korodujacego na plytkach ze stali oraz miedzi w temperaturze 100°C wciagu 24 godzin, oraz badanie ochrony lozysk przed korozja w kontakcie z woda na aparacie Errcor wedlug DIN 51802.The produced grease has penetration at 25 ° C after kneading 283 mm / 10, dropping temperature 138 ° C withstands corrosion test on steel and copper plates at 100 ° C within 24 hours, and testing the protection of the bearings against corrosion in contact with water using the Errcor apparatus according to DIN 51802.
Przyklad III. Do mieszalnika pojemnosci roboczej 150 kg, wprowadza sie 25,1 kg oleju mineralnego o lepkosci 22,3 cSt w temperaturze 50°C oraz 6,2 kg cuezyny o temperaturze kropienia 78°C« Po ogrzaniu do temperatury 100°C wprowadza sie 9,2 k^ zasadowej) alkilofenolanu wapnia o ciezarze czasteczkowym grupy fenolanowej 305 i rezerwie alkalicznej 221 mg KOH/g oraz 59 kg dwusiarczku nolibdenu. Mieszanie prowadzi sie 0,5 godziny utrzymujac temperature 100°C a nastepnie wprowadza 0,3 kg toluotriazolu oraz 0,2 kg dwubutylop- -krezolu. Miesza sie przez 0,5 godziny a nastepnie chlodzi do temperatury 30°C i egalizuje na egalizatorze trójwalcowym przy szczelinie 0,5 mm. Wytworzony smar posiada penetracje w temperaturze 25°C bez ugniatania 293 mm/10, temperature kropienia 58°C, wytrzymuje badanie dzialania korodujacego na stali i miedzi w tem¬ peraturze 100°C, w ciagu 3 godzin.Example III. The mixer with a working capacity of 150 kg is filled with 25.1 kg of mineral oil o 22.3 cSt viscosity at 50 ° C and 6.2 kg of cuesin with a dropping point of 78 ° C. «When heated to At a temperature of 100 DEG C., 9.2 kcal calcium alkylphenate with a molecular weight of the group is introduced phenolate 305 and an alkaline reserve of 221 mg KOH / g and 59 kg nolybdenum disulfide. The mixing is carried out 0.5 hour maintaining the temperature of 100 ° C and then introduces 0.3 kg of toluotriazole and 0.2 kg of dibutylp- -cresol. It is stirred for 0.5 hours and then cooled to 30 ° C and equalized on the equalizer three-roller with a gap of 0.5 mm. The produced grease penetrates at 25 ° C without kneading 293 mm / 10, dropping point 58 ° C, withstands corrosion test on steel and copper at temperature 100 ° C, within 3 hours.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL19175376A PL102041B1 (en) | 1976-08-10 | 1976-08-10 | A METHOD OF PRODUCING LUBRICANTS CONTAINING MOLYBDENUM DISULPHIDE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL19175376A PL102041B1 (en) | 1976-08-10 | 1976-08-10 | A METHOD OF PRODUCING LUBRICANTS CONTAINING MOLYBDENUM DISULPHIDE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL191753A1 PL191753A1 (en) | 1978-02-13 |
| PL102041B1 true PL102041B1 (en) | 1979-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL19175376A PL102041B1 (en) | 1976-08-10 | 1976-08-10 | A METHOD OF PRODUCING LUBRICANTS CONTAINING MOLYBDENUM DISULPHIDE |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL102041B1 (en) |
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1976
- 1976-08-10 PL PL19175376A patent/PL102041B1/en unknown
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| Publication number | Publication date |
|---|---|
| PL191753A1 (en) | 1978-02-13 |
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