US PATENT SUBCLASS 208 / 297
.~ With Group III metal compound (except clays)

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

177  DF  REFINING {23}
297.~ With Group III metal compound (except clays)

DEFINITION

Classification: 208/297

(under subclass 177) Processes wherein mineral oil is treated with a Group III metal compound, excluding those processes in which the oily such compound is clay.

(1) Note. Included in Group III metals are Al, Ga, In, Tl, Sc, Y, rare earth and actinide series metals.

SEE OR SEARCH THIS CLASS, SUBCLASS:

248, for processes of desulfurizing mineral oils using Group III metal compounds.