US PATENT SUBCLASS 208 / 212
.~.~.~ With subsequent treatment of product


Current as of: June, 1999
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208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

177  DF  REFINING {23}
208 R  DF  .~ Sulfur removal (free or combined sulfur) {17}
209  DF  .~.~ With hydrogen {4}
212.~.~.~ With subsequent treatment of product


DEFINITION

Classification: 208/212

(under subclass 209) Processes wherein the hydrodesulfurizing treatment is combined with a subsequent nonconversion treatment of the desulfurized oil.

(1) Note. The subsequent treatment may include further refining (removal of sulfur other than by use of hydrogen or removal of other impurities) or any other subsequent nonconversion type treatment.

SEE OR SEARCH CLASS

44, Fuel and Related Compositions,

300+, for a process of desulfurizing a mineral oil fuel and adding a stabilizer to the product.