US PATENT SUBCLASS 530 / 209
.~.~.~ Phosphorus or heavy metal containing material, elemental hydrogen, sulfur dioxide, or carbon dioxide used in the process, or product thereof

Current as of: June, 1999
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530 /   HD   CHEMISTRY: NATURAL RESINS OR DERIVATIVES; PEPTIDES OR PROTEINS; LIGNINS OR REACTION PRODUCTS THEREOF

200  DF  NATURAL RESINS OR DERIVATIVES (E.G., WOOD OR PINE TAR; CATIVO RESIN DERIVATIVES, ETC.) {6}
205  DF  .~ Recovery of tall oil or derivatives from papermaking waste, purification of tall oil, or separation of components of tall oil; or product thereof (e.g., separation of rosin, fatty acids, sterols, etc.; decolorizing, etc.) {3}
208  DF  .~.~ Inorganic material used in the process, or product thereof (e.g., using sulfuric acid, boric acid, etc.) {1}
209.~.~.~ Phosphorus or heavy metal containing material, elemental hydrogen, sulfur dioxide, or carbon dioxide used in the process, or product thereof

DEFINITION

Classification: 530/209

(under subclass 208) Processes wherein there is utilized a material containing phosphorus, heavy metal, elemental hydrogen, sulfur dioxide, or carbon dioxide; or products of such processes.