Institut Francais Du Pe'trole

Institute Francais Du Petrole

Parc, Guy

Guy Parc

Maurice Born

Jacques Lallement

Lucienne Briquet

Daniel Paquer

Nicole Thevenin

Jean-Luc Mieloszynski

Ourida Aberkane

Pierre Marchand

Bruno Delfort

Francois Dawans

Jean-Pierre Durand

Jacques Jarrin

Herve Toulhoat

Jacques Denis

Daniel Binet

Magali Robine

Gabriel De Gaudemaris

Useful as additive for lubricating oils are novel phosphosulphur compounds in accordance with the general formula (I):

Process for the preparation of phosphosulfide compounds useful as oil

A colloidal product is provided containing boron and phosphorus obtained by a process comprising:

Colloidal products containing boron and phosphorus, their preparation

A description is given of colloidal sulphur products, their preparation and their use as additives in lubricating oils. These products result from the reaction on a superbasic detergent additive, optionally modified by reaction with a boron derivative, of a 'small size' sulphur carboxylic acid complying with the general formula

Surbased colloidal product containing organic sulfur and their use as

New phosphosulfides compounds and use thereof as oil lubricants

Olefin polysulfide compositions of high sulfur content and of very low chlorine content are obtained by a process comprising the steps of: (1) reacting sulfur mono- and/or dichloride with at least one aliphatic monoolefin of 2-12 carbon atoms, to form an addition product or 'adduct', (2) reacting hydrogen sulfide with an alkali hydroxide or ammonium hydroxide dissolved in at least one substantially anhydrous C.sub.1 -C.sub.4 aliphatic monoalcohol, with optional addition of elemental sulfur, (3) contacting said 'adduct' together with at least one monohalogenated hydrocarbon compound, with the alcoholic solution obtained at the end of step (2), (4) heating the resultant mixture from step (3), removing the monoalcohol, while adding water, and (5) after settling and removal of the aqueous phase, recovering the organic phase formed at least in major part of the desired olefin polysulfide composition. These compositions, of sulfur content up to 65% by weight and of chlorine content generally lower than about 0.1% by weight, are used in particular as additives for improving the extreme-pressure properties of lubricants.

Olefin polysulfide compositions of high sulfur content and very low

Novel (poly)sulfurized carboxylic compounds, their preparation, and their use as additives to lubricating oils are disclosed. Such novel carboxylic compounds are more particularly esters of the general formula:

(Poly) sulfurized carboxylic compounds, their preparation and their use

A composition of a thiophosphoretted additive obtained by reacting a sodium or a calcium sulfonate surbasified by sodium or calcium carbonate, showing 0.9 to 10 basic equivalents per kilogram, with a phosphorus sulfide used in such proportion that he ratio of molar phosphorus to the basic equivalent of the surbasified sulfonate ranges from 0.002 to 0.15; and contacting resultant reaction product of the surbasified sulfonate and the phosphorus sulfide with at least one active hydrogen compound which is water, an alcohol, a phenol, a carboxylic acid, an ester-acid, a mineral acid, a mineral base, an amine, an amide or a mercaptan.

New thiophosphoretted compounds, their preparation and their use as

Described are polysulfurized olefin compositions defined as being prepared by reaction of sulfur monochloride and/or dichloride with at least one monoolefin with 6 to 12 carbon atoms to form an addition product (or 'adduct'), then by reaction of said adduct with a mercaptate or mercaptate-polysulfide of an alkaline metal or ammonium, itself obtained, for example, by reaction of a mercaptan with an alkaline hydroxide or with ammonia then, if need be, with sulfur, preferably in an alcoholic medium. These polysulfurized olefin compositions can be used as extreme-pressure additives in gearing oils or in oils for use in metal-working.

Polysulfurized olefin compositions, their preparation and use as

A new class of antiwear and extreme-pressure additives consisting of thiophosphoretted compounds obtained by reactin gphosphorus sulfieds, especially phosphorus decasulfide P.sub.4 S.sub.10, with surbasic detergent additives, is described. The reaction product can be optionally treated by at least one active hydrogen compound: water, alcohol, phenol, acid, ammonia, amine, amide and/or mercaptan.

Thiophosphoretted compounds, their preparation and their use as

Polysulphurized olefin compositions used as additives for gear oils, cutting oils, and as sulphurizing agents in organic media are obtained by a process comprising:

Polysulphurized olefin compositions, their preparation and their use as

The invention relates to a process for treating a new or regenerated catalyst containing a support having as a base at least one metal or metalloid oxide and at least one active metal, comprising treating the catalyst with at least one sulfuration agent dissolved in a solvent. The invention is charcterized in that the sulfuration agent is a polysulfide with the following general formula

Process for presulfurizing a hydrocarbon treatment catalyst

The invention relates to compounds of the metal dihydrocarbyl-dithiophosphyl-dithiophosphate type, their manufacture and use. These compounds can be represented by the general formula: ##STR1## wherein R is a monovalent substantially hydrocarbon-containing radical of 1 to 30 carbon atoms, X and Y are each a hydrogen atom or a monovalent substantially hydrocarbon-containing radical of 1 to 30 carbon atoms, M is a metal selected from zinc, cadmium, lead and antimony or an oxygen--and/or sulfur--containing molybdenum complex, and n is the valence of said metal M. The compounds according to the invention can be used as additives for lubricants wherein they act as a very efficient wear preventive.

Metal dihydrocarbyl-dithiophosphyl-dithiophosphates their manufacture

Compositions of olefin polysulfides having an increased solubility in mineral oils and in synthetic oils, particularly of the hydrogenated polyalphaolefin (P.A.O.) type, are disclosed. They are prepared more particularly by reacting a sulfur monochloride with a monoolefin (e.g. isobutene) so as to form an addition product, called an adduct, which is then reacted with an alkali metal or ammonium polysulfide, obtained, for example, by reacting a mercaptan with an alkali hydroxide or ammonia in the presence of elemental sulfur. These compositions of olefin polysulfides can be used as extreme-pressure additives in gear-oils or in metal-working oils.

Olefin polysulfide compositions their manufacture and use as additives

The disclosed polysulfided olefin compositions can be used in particular as extreme-pressure additives for lubricants. They are prepared by a process comprising the steps of: (1) reacting sulfur monochloride and/or dichloride with at least one monoolefin having 2 to 5 carbon atoms (generally isobutene) to form an 'adduct'; (2) contacting said 'adduct' jointly with an unsaturated monohalogenated hydrocarbon compound, in a proportion corresponding to a number of halogen gram-atoms from about 1 to 70% of the number of halogen gram-atoms of the assembly 'monohalogenated hydrocarbon compound+adduct', with a sulfur compound (e.g. alkaline sulfide, hydrogenosulfide or polysulfide) and, mostly, element sulfur, in a proportion of 0 to 7 gram-atoms per mole of sulfur compound, within an aqueous or hydroalcoholic medium; (3) heating the mixture and, after settling in 2 phases, separating the organic phase containing the polysulfided olefin, and (4) optionally treating the obtained product with a base. The obtained polysulfided olefins, depending on their sulfur content, may be used as extreme-pressure additives in oil compositions for gears or for metal working.

Polysulfided olefin compositions, their preparation and use as additives

The invention relates to compounds of the metal dihydrocarbyl-dithiophosphyl-dithiophosphate type, their manufacture and use. These compounds can be represented by the general formula: ##STR1## wherein R is a monovalent substantially hydrocarbon-containing radical of 1 to 30 carbon atoms, X and Y are each a hydrogen atom or a monovalent substantially hydrocarbon-containing radical of 1 to 30 carbon atoms, M is a metal selected from zinc, cadmium, lead and antimony or an oxygen- and/or sulfur-containing molybdenum complex, and n is the valence of said metal M. The compounds according to the invention can be used as additives for lubricants wherein they act as a very efficient wear preventive.

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Rueil Malmaison, France

Guy Parc