Process for improving the lubricating properties of base oils using a Fischer-Tropsch derived bottoms
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United States of America Patent
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May 28, 2013
Grant Date -
Apr 13, 2006
app pub date -
Nov 21, 2005
filing date -
Nov 7, 2003
priority date (Note) -
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Abstract
A method for improving the lubricating properties of a distillate base oil characterized by a pour point of 0 degrees C. or less and a boiling range having the 10 percent point falling between about 625 degrees F. and about 790 degrees F. and the 90 percent point falling between about 725 degrees F. and about 950 degrees F., the method comprises blending with said distillate base oil a sufficient amount of a pour point depressing base oil blending component to reduce the pour point of the resulting base oil blend at least 3 degrees C. below the pour point of the distillate base oil, wherein the pour point depressing base oil blending component is an isomerized Fischer-Tropsch derived bottoms product having a pour point that is at least 3 degrees C. higher than the pour point of the distillate base oil.
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