US PATENT SUBCLASS 208 / 300
.~.~ Of particular physical shape or structure

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

177  DF  REFINING {23}
299  DF  .~ With solid catalyst or absorbent {8}
300.~.~ Of particular physical shape or structure

DEFINITION

Classification: 208/300

(under subclass 299) Processes wherein a solid treating agent having some structural characteristic particularly adapting it for refining mineral oil is employed.

(1) Note. Examples of structural characteristics which are regarded as peculiar to the use of the solid for refining are

size, shape and degree of porosity.