US PATENT SUBCLASS 423 / 527
.~.~.~.~.~ Adding organic compound to mixture

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

511  DF  SULFUR OR COMPOUND THEREOF {4}
512.1  DF  .~ Oxygen containing {11}
521  DF  .~.~ Ternary compound containing hydrogen {1}
522  DF  .~.~.~ Sulfuric acid {5}
525  DF  .~.~.~.~ Starting material includes organic or carbonaceous impurity {3}
527.~.~.~.~.~ Adding organic compound to mixture

DEFINITION

Classification: 423/527

(under subclass 525) Processes wherein an organic compound is added to the impure mixture.

(1) Note. Examples of the organic additives are: solvent oils for dissolving impurities, fatty acids to reduce foaming, etc.

(2) Note. See (1) Note is subclass 226 for structural requirements of an organic compound.