US PATENT SUBCLASS 502 / 521
METAL CONTAMINANT PASSIVATION

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

521METAL CONTAMINANT PASSIVATION

DEFINITION

Classification: 502/521

METAL CONTAMINANT PASSIVATION:

(under the class definition) Collection of art directed to a process of counteracting the undesired effect of a metal in a catalyst or sorbent, without removing said metal.