US PATENT SUBCLASS 208 / 274
.~.~.~.~ Organic treating agent


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

177  DF  REFINING {23}
265  DF  .~ With acids {4}
266  DF  .~.~ Sulfuric acid {7}
273  DF  .~.~.~ With subsequent treatment of the oil {2}
274.~.~.~.~ Organic treating agent


DEFINITION

Classification: 208/274

(under subclass 273) Processes wherein the sulfuric acid refined oil is subsequently treated with an added organic compound.

SEE OR SEARCH THIS CLASS, SUBCLASS:

237+, for processes of desulfurizing mineral oils with organic compounds.

290+, for processes of refining mineral oil in which an added organic material is employed.