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US 4,543,196 AGranted
Method for making grease from reclaimed oil
AssigneeArmco Inc.
InventorClark J. Flake
Life of this patent
Estimating the term…
Abstract
Oil reclaimed from cold mill rolling processes, is thoroughly mixed with at least one soap-forming ingredient, which reacts upon mixing with fats or fatty acids contained in the reclaimed oil to form a soap in situ. The soap in turn thickens the oil into a grease.
Claims22
A method for making lubricating grease comprising the steps of:
- (A) combining a base oil having a minimum viscosity of 430 SUS and including at least one reclaimed cold mill rolling oil, which upon reclamation contains from four percent to thirty percent by weight of a saponifiable compound selected from the group consisting of at least one fat and/or fatty acid, and at least one soap-forming compound which reacts with said saponifiable compound to form a soap, and
- (B) thoroughly mixing the mixture of said reclaimed oil and said soap-forming compound, whereby a soap is formed in situ, said soap causing said reclaimed oil to thicken into a grease.
A method for making lubricating grease comprising the steps of:
- (A) combining a base oil having a minimum viscosity of 430 SUS and including at least one reclaimed cold mill rolling oil, which upon reclamation contains from four percent to thirty percent by weight of a saponifiable compound selected from the group consisting of at least one fat or fatty acid, and at least one soap-forming compound which reacts with said saponifiable compound to form a soap.
- (B) thoroughly mixing the mixture of said reclaimed oil and said soap-forming compound, whereby a soap is formed in situ, said soap causing said reclaimed oil to thicken into a grease, and
- (C) thereafter separating said grease from said mixture.
Dependencies are inferred from the claim text.