US PATENT SUBCLASS 423 / 715
.~.~.~ Halogen containing acid

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

700  DF  ZEOLITE {7}
713  DF  .~ Isomorphic metal substitution {1}
714  DF  .~.~ Acid treatment {1}
715.~.~.~ Halogen containing acid

DEFINITION

Classification: 423/715

Halogen containing acid:

(under subclass 714) Process wherein the treatment is with an acid having a halogen element (e.g., HCl).