The Lubrizol Corporation

Stephen A Di Biase

Syed Q Rizvi

James J Schwind

Craig D Tipton

James H Bush

Kirk E Davis

Calvin W Schroeck

Frederick W Koch

Joseph W Pialet

Curtis R Scharf

Jeffrey F Munson

Melody A Wilk

Gear oil compositions are described which comprise a lubricating base oil having dissolved therein:

Gear lubricant composition

This invention is directed to lubricating oil and functional fluid compositions having improved high temperature stability and which contain at least one phosphorus-containing composition and at least one oil-soluble nitrogen-containing composition. More particularly, the lubricating and functional fluid compositions of the present invention comprise (A) a major amount of an oil of lubricating viscosity, and a minor amount of (B-1) at least one soluble tertiary aliphatic primary amine salt of a substituted phosphoric acid composition characterized by the formula ##STR1## wherein R.sup.1 is hydrogen or a hydrocarbyl group, R.sup.2 is a hydrocarbyl group, and both X groups are either O or S, and (C) at least one soluble nitrogen-containing composition prepared by the reaction of a hydrocarbon-substituted succinic acid-producing compound with at least about one-half equivalent, per equivalent of acid producing compound, of an amine containing at least one hydrogen attached to a nitrogen atom. Preferably, the amine salts of the phosphoric acids utilized in the lubricating compositions of the present invention are derived from primary amines, and the soluble nitrogen-containing compositions (C) also contain boron. The lubricating compositions of the present invention are particularly useful in gear applications requiring high thermal stability such as from about 160.degree. C. with intermittent operation up to about 200.degree. C.

Phosphorus-containing lubricant and functional fluid compositions

Copper and sulfur containing compositions, and additive concentrates and lubricating compositions containing the copper and sulfur containing compositions are described. The sulfur compounds have the formula:

Sulfur and copper-containing lubricant compositions

This invention relates to lubricating compositions containing hydroxyalkane phosphonic acids and derivatives thereof. More specifically, this invention relates to hydroxylakane phosphonic acids which can be reacted to form salts with basic materials, including overbased detergents, dispersants and amines. These materials can be particularly useful in lubricating compositions. The hydroxyalkane phosphonic acid is represented by the following formula: ##STR1## wherein X is oxygen, sulfur or a secondary amino group, n is an integer from 1 to 8, Y is hydrogen or a phosphonic acid group and R is an alkyl group having from 1 to about 100 carbon atoms.

Hydroxyalkane phosphonic acids and derivatives thereof and lubricants

This invention relates to lubricating compositions containing hydroxyalkane phosphonic acids and derivatives thereof. Hydroxyalkane phosponic acids in the present invention can be reacted to form salts with basic materials, including detergents, dispersants and amines. These materials can be particularly useful in lubricating compositions to improve anti-wear and extreme pressure properties of lubricating formulations. The hydroxyalkane phosphonic acid is represented by the following formula: ##STR1## wherein Y is a phosphonic acid group or hydrogen, and R is alkyl from 1 to about 100 carbon atoms.

Lubricants containing salts of hydroxyalkane phosphonic acids

The present invention relates to an improved process for beneficiating an ore. In particular, the process is useful for beneficiating ores and recovering metal values such as gold, copper, lead, molybdenum, zinc, etc., from the ores. In one embodiment, the process comprises

Ore flotation process using carbamate compounds

A lubricating composition is disclosed. The composition comprises

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Euclid, OH, United States of America

Stephen A Di Biase