METHOD OF PREPARING MULTIFUNCTIONAL ADDITIVE FOR LUBRICATING OILS

organic synthesis and lubricants. SUBSTANCE: additive is prepared by interaction of dialkyldithiophosphoric acid, wherein alkyl is linear or branched alkyl having 4-8 carbon atoms, with zinc oxide in presence of aliphatic alcohol, 2-mercaptobenzothiazole, and water at 80-95 C followed by modifying f...

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Main Authors MEDZHIBOVSKIJ G.S, LEVITINA I.S, GUSHCHIN A.I, BORSHCHEVSKIJ S.B, SHABANOVA E.V, MEDZHIBOVSKIJ A.S, IVANKOVSKIJ V.L, ROZHDESTVINA O.V
Format Patent
LanguageEnglish
Published 27.03.2001
Edition7
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
FUELS
LUBRICANTS
LUBRICATING COMPOSITIONS
METALLURGY
ORGANIC CHEMISTRY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Summary:organic synthesis and lubricants. SUBSTANCE: additive is prepared by interaction of dialkyldithiophosphoric acid, wherein alkyl is linear or branched alkyl having 4-8 carbon atoms, with zinc oxide in presence of aliphatic alcohol, 2-mercaptobenzothiazole, and water at 80-95 C followed by modifying formed products with boric acid at 90-110 C. The following molar ratio should be observed: dialkyldithiophosphoric acid : zinc oxide : alcohol : water : 2-mercaptobenzothiazole : boric acid = 1:(0.6- 0.75):(0.10-0.2): (0.2-0.8): (0.015-0.06): (0.05-0.1). Aliphatic is 2- ethylhexanol or mixture of aliphatic C5-C8-alcohols. Resulting dithiophosphate additive contains more than 80% principal material. EFFECT: improved tribological and antioxidant properties of doped lubricating oil. 3 cl, 4 tbl, 5 ex
Bibliography:Application Number: RU19990127597