Exxon Research and Engineering Company

Exxonmobil Research and Engineering Company

Kevin David Butler

Christopher Jeffrey Kent

Todd Timothy Nadasdi

Christopher Olavesen

Alison Fiona Miller

Robert D Dewalt

Harry E Henderson

An industrial lubricant having wear prevention properties without sacrificing oxidation resistance comprises a major portion of a base oil; an effective amount of a sulfur and phosphorus antiwear compound and an effective amount of an anti-oxidant or mixture of antioxidants.

Long-life lubricating oil with wear prevention capability

A lubricating oil formulation containing a major amount of a base oil of lubricating viscosity and a minor amount of additives comprising a combination of phenyl naphthyl amine, dimercaptothiadiazole or derivative thereof, and triazole or benzotriazole or derivative thereof, exhibiting enhanced resistance to oxidation.

Industrial oils of enhanced resistance to oxidation

A lubricating oil suitable for machinery which may come into incidental contact with food is described, which contains a food grade base oil and a combination of food grade additives including a thickener, an antioxidant, a rust inhibitor, an anti-wear additive, an antifoamant, optionally a metal passivator, and a combination of up to 2.5 wt % emulsifier and coupling agent. The lubricating oil exhibits good resistance to wear, oxidation and rust, and reduced sludging at equipment surface temperatures of about 200.degree. F. and higher.

Non-sludging, high temperature resistant food compatible lubricant for

A lubricating oil suitable for machinery which may come into incidental contact with food is described, which contains a food grade base oil and a combination of food grade additives including a thickener, an antioxidant, a rust inhibitor, an anti-wear additive, an antifoamant, optionally a metal passivator, and 0.2 wt % or less coupling agent. The lubricating oil exhibits good resistance to wear, oxidation and rust, and reduced sludging at equipment surface temperatures of about 200.degree. F. and higher.

Lubricating basestock oil suitable for use as such or as blending oil is obtained by the low severity hydrotreatment of industrial circulating oils of the type employed in low severity lubricating applications, and which have been mildly degraded and are no longer suitable for use for their intended purpose.

Process to produce lube oil basestock by low severity hydrotreating of

The present invention is directed to the production of a formulated transformer oil by the process involving fractionating the product coming from a hydrocracker to produce a distillate boiling in the transformer oil range, dewaxing the fraction, optionally hydrofinishing the fraction and adding to said fraction an effective amount of anti-oxidant and/or pour point depressant. The formulated transformer oil produced by this process has properties equivalent to those of formulated naphthenic transformer oil.

Process for producing transformer oil from a hydrocracked stock

A method for decreasing the foaming tendency of hydrocarbons, particularly lube basestocks, is disclosed. The method comprises passing the hydrocarbon through an adsorption zone having an adsorbent, preferably a basic adsorbent therein. In a preferred embodiment, the method comprises passing the hydrocarbon feedstock through a regenerable multi-bed adsorption zone. The foaming tendency of the hydrocarbon exiting from the bed in service is monitored. The flow to each particular bed in service is discontinued and the bed regenerated when the foaming tendency of the hydrocarbon exiting from each particular bed exceeds a predetermined value.

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Sarnia, Canada

Kevin David Butler