US PATENT SUBCLASS 208 / 299
.~ With solid catalyst or absorbent

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

177  DF  REFINING {23}
299.~ With solid catalyst or absorbent {8}
300  DF  .~.~> Of particular physical shape or structure
301  DF  .~.~> With preliminary treatment of the oil
302  DF  .~.~> With subsequent treatment of the oil
303  DF  .~.~> Plural treating stages
304  DF  .~.~> Processes including downward movement of particles
305  DF  .~.~> Solids rehabilitation
306  DF  .~.~> Composite or plural treating agents
307  DF  .~.~> Silicon or carbon containing treating agent

DEFINITION

Classification: 208/299

(under subclass 177) Processes involving contacting mineral oil with a solid catalyst or adsorbent not provided for above.

(1) Note. This and indented subclasses are the collecting places for manipulative techniques for refining mineral oil with a solid catalyst or adsorbent which is either unidentified, or is not provided for above. Processes which involve some manipulative technique and also specify a solid provided for above are cross referenced to this or indented subclass if necessary.

SEE OR SEARCH THIS CLASS, SUBCLASS:

146+, for processes including manipulative techniques of contacting mineral oils with solid catalysts or heat carriers during the chemical conversion of the oil.

250, for processes of contacting mineral oil with solids in the desulfurizing of mineral oils.

298, for mineral oil refining processes involving contacting the oil with a slurry of solids handled as a liquid.