US3897470A — Process for producing oil-soluble metal sulfonates

Claim 1

Independent Claim 179 words

A PROCESS FOR PRODUCING OIL-SOLUBLE SULFONATES CONTAINING METAL CONSTITUENTS, WHICH SULFONATES HAVE A LONG SHELF LIKE WITHOUT PRECIPITATION OF THE METAL CONSTITUENTS, COMPRISING: A. MIXING AT LEAST A STOICHIOMETRIC AMOUNT OF A METAL HALIDE SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, CHROMINUM, RION, MOLYBDENUM, VANADIUM, TITANIUM, INDIUM, NIOBIUM, TANTALUM, RUBIDIUM, OSMIUM, AND MIXTURES THEREOF, WITH WATER AND AN OIL-SOLUBLE SULFONIC ACID HAVING A MOLECULAR WEIGHT IN THE RANGE OF ABOUT 300 TO ABOUT 1000 TO FOM A REACTION MITURE, B. AGITATING AND HEATING SAID REACTION MIXTURE TO A TEMPERATURE IN THE RANGE OF 60* TO 105*C, C. INTRODUCING INTO THE REACTION MIXTURE AN ADDITIONAL AMOUNT OF THE OIL-SOLUBLE SULFONIC ACID IN AN AMOUNT OF FROM 50 TO 200 WEIGHT PERCENT BASED ON THE OIL-SOLUBLE SUFLONIC ACID ALREADY IN THE REACTION MIXTURE, D. CONTINUING THE AGITATION AND HEATING OF THE REACTION MIXTURE TO THE REFLUX TEMPERATURE OF SAID MIXTURE FOR A PERIOD OF TIME EFFECTIVE TO ALLOW FORMATION OF A METAL SULFONATE SUBSTANTIALLY FREE OF SAID HALIDE, AND E. RECOVERING FROM THE REACTION PRODUCT OF STEP (D) THE METAL SULFONATE.

Claim 2

Dependent Claim 179 words

A PROCESS FOR PRODUCING OIL-SOLUBLE SULFONATES CONTAINING METAL CONSTITUENTS, WHICH SULFONATES HAVE A LONG SHELF LIKE WITHOUT PRECIPITATION OF THE METAL CONSTITUENTS, COMPRISING: A. MIXING AT LEAST A STOICHIOMETRIC AMOUNT OF A METAL HALIDE SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, CHROMINUM, RION, MOLYBDENUM, VANADIUM, TITANIUM, INDIUM, NIOBIUM, TANTALUM, RUBIDIUM, OSMIUM, AND MIXTURES THEREOF, WITH WATER AND AN OIL-SOLUBLE SULFONIC ACID HAVING A MOLECULAR WEIGHT IN THE RANGE OF ABOUT 300 TO ABOUT 1000 TO FOM A REACTION MITURE, B. AGITATING AND HEATING SAID REACTION MIXTURE TO A TEMPERATURE IN THE RANGE OF 60* TO 105*C, C. INTRODUCING INTO THE REACTION MIXTURE AN ADDITIONAL AMOUNT OF THE OIL-SOLUBLE SULFONIC ACID IN AN AMOUNT OF FROM 50 TO 200 WEIGHT PERCENT BASED ON THE OIL-SOLUBLE SUFLONIC ACID ALREADY IN THE REACTION MIXTURE, D. CONTINUING THE AGITATION AND HEATING OF THE REACTION MIXTURE TO THE REFLUX TEMPERATURE OF SAID MIXTURE FOR A PERIOD OF TIME EFFECTIVE TO ALLOW FORMATION OF A METAL SULFONATE SUBSTANTIALLY FREE OF SAID HALIDE, AND E. RECOVERING FROM THE REACTION PRODUCT OF STEP (D) THE METAL SULFONATE.

Claim 3

Dependent Claim 39 words

The process of claim 1 wherein said oil-soluble sulfonic acid is diluted with from about 25 to 150 weight percent of an inert volatile solvent and said reflux temperature is in the range of about 60* to 105* C.

Claim 4

Dependent Claim 24 words

The process of claim 2 wherein said inert volatile solvent is a low boiling hydrocarbon selected from the group conSisting of hexane and naphtha.

Claim 5

Dependent Claim 27 words

The process of claim 1 wherein said reaction mixture is maintained at its reflux temperature for a period of time ranging from about 1 to 6 hours.

Claim 6

Dependent Claim 61 words

The processs of claim 4 which includes the step of admixing from about 1 to about 25 weight percent water, based on the amount of sulfonic acid employed, to said mixture after same has refluxed and then heating the mixture to its reflux temperature and maintaining same under reflux condition for a period of time ranging from 0.1 to 2 hours.

Claim 7

Dependent Claim 57 words

The process of claim 1 wherein the refluxed mixture is stripped of volatile components by heating said refluxed mixture to a temperature within the range of about 125* to 175*C and includes the step of admixing from about 20 to 300 weight percent of a nonvolatile organic carrier component to said reflux mixture during refluxing of same.

Claim 8

Dependent Claim 66 words

The process of claim 6 which includes the additional purification steps of stripping the product with an inert gas selected from the group consisting of nitrogen, carbon dioxide, air, and mixtures thereof for a period of time ranging from about 0.2 to 6 hours and filtering the gas stripped product through an inert absorbent material selected from the group consisting of alumina, diatomaceous earth and pumice.

Claim 9

Dependent Claim 50 words

The process of claim 7 wherein said metal halide is present in a mixture of said metal halide and a metal oxide, said metal halide being present in said mixture in an amount ranging from about 0.25 to 8 moles of said metal halide per mole of said metal oxide.

Claim 10

Dependent Claim 53 words

The process of claim 8 wherein said oil-soluble sulfonic acid has a molecular weight in the range of about 370 to about 700 and is produced synthetically by the sulfonation of an alkylate selected from the group consisting of dimer alkylate and NAB Bottoms alkylate, and said nonvolatile carrier component is pale oil.

Claim 11

Dependent Claim 29 words

The process of claim 9 wherein said nonvolatile carrier is diluted with a solvent selected from the group consisting of petroleum naphtha, hexane, heptane, octane, benzene, toluene, and xylene.

Claim 12

Dependent Claim 176 words

A process for producing oil-soluble sulfonates containing metal constituents, which sulfonates have a long shelf life without precipitation of the metal constituents, comprising: a. mixing at least a stoichiometric amount of a metal halide selected from the group consisting of aluminum, chromium, iron, molybdenum, vanadium, titanium, indium, niobium, tantalum, rubidium, osmium, and mixtures thereof, with water and an oil-soluble sulfonic acid having a molecular weight in the range of about 300 to about 1,000 to form a reaction mixture, b. agitating and heating said reaction mixture to the reflux temperature of said mixture for a period of time effective to allow formation of a metal sulfonate substantially free of said halide; and c. admixing from about 1 to about 25 weight percent water, based on the amount of sulfonic acid employed, to said mixture after same has refluxed and then heating the mixture to its reflux temperature and maintaining same under reflux condition for a period of time ranging from 0.1 to 2 hours, d. recovering from the reaction product of step (c) the metal sulfonate.

Claim 13

Dependent Claim 176 words

A process for producing oil-soluble sulfonates containing metal constituents, which sulfonates have a long shelf life without precipitation of the metal constituents, comprising: a. mixing at least a stoichiometric amount of a metal halide selected from the group consisting of aluminum, chromium, iron, molybdenum, vanadium, titanium, indium, niobium, tantalum, rubidium, osmium, and mixtures thereof, with water and an oil-soluble sulfonic acid having a molecular weight in the range of about 300 to about 1,000 to form a reaction mixture, b. agitating and heating said reaction mixture to the reflux temperature of said mixture for a period of time effective to allow formation of a metal sulfonate substantially free of said halide; and c. admixing from about 1 to about 25 weight percent water, based on the amount of sulfonic acid employed, to said mixture after same has refluxed and then heating the mixture to its reflux temperature and maintaining same under reflux condition for a period of time ranging from 0.1 to 2 hours, d. recovering from the reaction product of step (c) the metal sulfonate.

Claim 14

Dependent Claim 48 words

The process of claim 11 which includes the step of admixing from about 50 to 200 weight percent additional oil-soluble sulfonic acid to said reaction mixture during the heating of said mixture, and while said mixture is at a temperature within the range of about 60* to 105*C.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-07-28	1979-01-27	1979-07-29	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-07-28	1983-01-27	1983-07-29	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-07-28	1987-01-27	1987-07-29	$7700.00	Window Closed / Lapsed

Process for producing oil-soluble metal sulfonates

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