Production of sustainable high-quality oils of white mineral oil purity through treatment of re-refined base oils
AssigneeHollyFrontier LSP Brand Strategies LLC
InventorsMatthew Joyce, John Pudelski, Sander Engelsma, Rumeysa Caliskan
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Abstract
High-quality oil meeting EP/USP specifications for white mineral oil purity can be obtained through treatment of re-refined base oil as described herein, using sulfonation treatments and bleaching material. The resulting high purity oil is sustainable with a reduced carbon footprint relative to oils meeting white mineral oil purity standards prepared from traditional starting materials.
Claims11
A method for purifying a re-refined base oil to produce a purified oil having a reduced carbon footprint and meeting purity standards for white mineral oils, comprising:
- performing a sulfonation treatment on a re-refined base oil to produce a sulfonated oil, wherein the re-refined base oil is derived from used oil or other used lubricants;
- and
- combining the sulfonated oil with a bleaching material to produce a purified oil having a reduced carbon footprint and meeting purity standards for white mineral oils, wherein the purified oil comprises less than 0.1% polycyclic aromatic hydrocarbons.
A purified oil having a reduced carbon footprint and meeting purity standards for white mineral oils derived from re-refined base oil.
Dependencies are inferred from the claim text.