US PATENT SUBCLASS 208 / 293
.~ With sulfur containing treating agent

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

177  DF  REFINING {23}
293.~ With sulfur containing treating agent

DEFINITION

Classification: 208/293

(under subclass 177) Processes wherein mineral oil is treated with an added sulfur containing material.

(1) Note. Metal sulfates and sulfides and the various sulfur oxides are examples of treating agents used in the processes classified herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

242, for processes of desulfurizing mineral oils using sulfur oxides.