US PATENT SUBCLASS 208 / 231
.~.~.~.~ With added oxygen containing organic compound

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

177  DF  REFINING {23}
208 R  DF  .~ Sulfur removal (free or combined sulfur) {17}
226  DF  .~.~ With alkali or alkali earth metal compound (except clays) {4}
230  DF  .~.~.~ Alkali metal compound {2}
231.~.~.~.~ With added oxygen containing organic compound {2}
232  DF  .~.~.~.~.~> Alcohol containing {1}
234  DF  .~.~.~.~.~> With regeneration of treating agent

DEFINITION

Classification: 208/231

(under subclass 230) Processes wherein an oxygen containing organic compound is employed in addition of the alkali metal compound.

SEE OR SEARCH THIS CLASS, SUBCLASS:

204, for mineral oil sweetening processes wherein an alkali metal hydroxide or carbonate is employed with an oxygen containing organic compound.